2003-04 Mach 1 Registry Owners Club  


Go Back   2003-04 Mach 1 Registry Owners Club > "GO" Discussions > Engine & Drivetrain (Including trans & rear axles)

Reply
 
Thread Tools Display Modes
Old 01-08-2021, 07:26 AM   #1
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Question Need Some Rearend help/info

Have an 04 mach with stock rearend except using 4.10's.

I have been trying to locate new spider and side gears and had no luck so went to local Ford and he told me that for him he cant order because that gear carrier is listed as non-serviceable.

I have googled and googled for what I need and find nothing.

So anyone here know if I cant just buy the spider and side gears or and I gonna have to drop around $500 for the whole diff carrier?

Thanks for any info.
Twitch is offline   Reply With Quote
Old 01-08-2021, 10:17 AM   #2
ASH302
Soldier for Christ
 
ASH302's Avatar
 
Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,467
Re: Need Some Rearend help/info

is this what your looking for
https://lmr.com/item/LRS-4215B/86-04...t-99-Cobra-Irs

ASh
__________________
2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016

Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020

ASh
ASH302 is offline   Reply With Quote
Old 01-08-2021, 10:18 AM   #3
ASH302
Soldier for Christ
 
ASH302's Avatar
 
Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,467
Re: Need Some Rearend help/info

sorry that one above was for 31 spline, this one is for the 28 spline.
https://lmr.com/item/LRS-4215A/86-04...ction-Lok-Will

ASh
__________________
2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016

Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020

ASh
ASH302 is offline   Reply With Quote
Old 01-08-2021, 12:53 PM   #4
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

Quote:
Originally Posted by ASH302 View Post
sorry that one above was for 31 spline, this one is for the 28 spline.
https://lmr.com/item/LRS-4215A/86-04...ction-Lok-Will

ASh
Those are the parts I need but I can find them for the Mach. I contacted LMR about those yesterday, they will not fit the mach and ford parts confirmed this.

I just need to replace those parts in pic but from what Im seeing I gonna have to do the entire carrier.

BTW the white mach's are my fav color
Twitch is offline   Reply With Quote
Old 01-08-2021, 12:58 PM   #5
ab_mach1
Lorraine's driver
 
ab_mach1's Avatar
 
Join Date: Apr 2012
Location: Indianapolis, IN
Posts: 2,399
Re: Need Some Rearend help/info

I thought the SRA's for the GT's and Mach's were the same..?
__________________
  • Azure Blue 04 Mach 1
  • SCT X3 with LaSota Racing tune
  • Borla Stingers w/JBA off road H pipe
  • MGW short shifter w/comfort handle
  • Eibach Sportlines w/Koni STR.T's and Maximum Motorsports CC plates
ab_mach1 is offline   Reply With Quote
Old 01-08-2021, 02:10 PM   #6
ASH302
Soldier for Christ
 
ASH302's Avatar
 
Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,467
Re: Need Some Rearend help/info

Quote:
Originally Posted by ab_mach1 View Post
I thought the SRA's for the GT's and Mach's were the same..?
I thought they were the same also. So I do not know.

ASh
__________________
2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016

Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020

ASh
ASH302 is offline   Reply With Quote
Old 01-08-2021, 02:11 PM   #7
ASH302
Soldier for Christ
 
ASH302's Avatar
 
Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,467
Re: Need Some Rearend help/info

Quote:
Originally Posted by Twitch View Post
Those are the parts I need but I can find them for the Mach. I contacted LMR about those yesterday, they will not fit the mach and ford parts confirmed this.

I just need to replace those parts in pic but from what Im seeing I gonna have to do the entire carrier.

BTW the white mach's are my fav color
So everything in the rear end is stock, but that you have 4.10s is all?

ASh
__________________
2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016

Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020

ASh
ASH302 is offline   Reply With Quote
Old 01-08-2021, 04:31 PM   #8
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

Quote:
Originally Posted by ASH302 View Post
So everything in the rear end is stock, but that you have 4.10s is all?

ASh
Yes, I have FRPP 4.10's.
As for the GT vs Mach I thought they were the same also but the Ford Parts guy says on his PC that they list them not compatible, LMR also confirmed this and referred to Ford parts.

I find it really odd that none are available for the mach, they do come out of the carrier since I removed the entire carrier to replace all the bearings and everything in there.
Thought my original rear noise I had was just bearings but its those gears.

I just cant find what the difference are between the mach and gt anywhere.
Twitch is offline   Reply With Quote
Old 01-08-2021, 04:47 PM   #9
DSG2003Mach1
700 HP Mach
 
DSG2003Mach1's Avatar
 
Join Date: Nov 2003
Location: Orlando, FL
Posts: 8,332
Re: Need Some Rearend help/info

If theres a difference I'd love to hear it from somebody that actually knows. I'd put my money more towards it just wasn't set up right in the system to begin with but who knows
__________________
03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc...

'12 F150 FX2 Supercrew with Ecoboost daily beater
DSG2003Mach1 is online now   Reply With Quote
Old 01-08-2021, 05:14 PM   #10
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

Quote:
Originally Posted by DSG2003Mach1 View Post
If theres a difference I'd love to hear it from somebody that actually knows. I'd put my money more towards it just wasn't set up right in the system to begin with but who knows
Thats what I was thinking but when I used the Ford part # for gt every site I came across said specifically that it will not fit mach. Even on LMR in the description area, clicking on Fitment Issues all it says Will not fit mach.

Im no expert when it comes to the rearends but I know how to do the work.

Only other thought I had was maybe going to local pull a part and getting a GT carrier and overhaul it, only cause today and tomorrow everything is %50 off...EVERYTHING.
That way any future issues I just get GT gear parts.
But then I still have the same issue, what are the differences between these diffs.

Last edited by Twitch; 01-08-2021 at 05:42 PM.
Twitch is offline   Reply With Quote
Old 01-08-2021, 07:14 PM   #11
ASH302
Soldier for Christ
 
ASH302's Avatar
 
Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,467
Re: Need Some Rearend help/info

Trying find the diff between the two.

https://www.svtperformance.com/threa...ar-end.867870/


https://www.stangnet.com/mustang-for...ar-end.656031/

honestly idk what the diff is, but what these said.

ASh
__________________
2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016

Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020

ASh
ASH302 is offline   Reply With Quote
Old 01-08-2021, 08:34 PM   #12
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

Quote:
Originally Posted by ASH302 View Post
Trying find the diff between the two.

https://www.svtperformance.com/threa...ar-end.867870/


https://www.stangnet.com/mustang-for...ar-end.656031/

honestly idk what the diff is, but what these said.

ASh
Thx I'll look thru the links.
Twitch is offline   Reply With Quote
Old 01-08-2021, 11:39 PM   #13
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

I did some more digging on some other sites.
I think this guy at my local ford may have goofed, not sure how since he used my VIN for his search.

Ford Parts local gave me this part# for the carrier 2LZ5-4026-AA
I did a search here and it says does not fit 2004 Mach 1.
https://parts.lakelandford.com/p/For...L5Z4026AA.html

So I did a search there for Mach 1 and I get this page and says its fits mine.It clearly lists all the parts I need and to order I think and completely different part #'s

https://parts.lakelandford.com/produ...m=differential

SO what do yall think?
Twitch is offline   Reply With Quote
Old 01-09-2021, 06:04 AM   #14
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

OK this is what I found, Idiot ford parts guy I guess. This ford parts elsewhere and here is everything I can order for the diff.

https://parts.lakelandford.com/a/For...FT/FWP095.html

Parts guy gave me part#:2L1Z-4215-EA
Looking in that link shows part# AR3Z4215A
LMR also uses the top #

Im kinda confused abit with part #'s in the link when I cross reference GT #'s that local ford and LMR claim wont fit vs. the link.

EX:
GT Carrier #2L5Z-4026-AA
GT Spider Gear set # 2L1Z-4215-EA

Now using my VIN in that link here are the corresponding numbers to same parts.

They List Mach Carrier #AL3Z4026A
They List Mach Spider gear set #AR3Z4215A

I know different sellers and what not use somewhat diff part #'s but always use the ford numbers in them, meaning the 4026 and 4215.

I dont know who is telling the truth. :
Twitch is offline   Reply With Quote
Old 01-10-2021, 08:00 PM   #15
ASH302
Soldier for Christ
 
ASH302's Avatar
 
Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,467
Re: Need Some Rearend help/info

I just get the one that they show as the part number for the Mach, it is werid, but as I said, the diff shouldn't be any different from the GT and Mach but the 3.55 gears that come in the Mach.

ASh
__________________
2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016

Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020

ASh
ASH302 is offline   Reply With Quote
Old 01-10-2021, 08:11 PM   #16
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

I was looking on another Ford Online Parts site and saw something about the carrier being a different size, but I coudnt find anywhere else online about the carrier on it.
I ordered a Dana set for an 8.8 28 spline so guess Im gonna find out soon.

My cousin in Austin owns his own speed shop so Monday when he gets to his shop and gets access to his PC there he's going to see what he can find out.

But his response to the issue is just spend $500 and buy a True-Trak complete carrier. I told him everything else but the spider gears were recently replaced.

Now if these gears I ordered dont work and I cant get a def answer, thats exactly what I'll end up doing I guess and be done,

Either way when I know if the parts on order fit or not, I'll post back here with results.

I was looking forward to having my new wheels put on Monday, but now with the the weather here,snow I get to wait until Tuesday before they get here. plus Im not taking the stang in that kinda weather
Twitch is offline   Reply With Quote
Old 01-10-2021, 08:51 PM   #17
ASH302
Soldier for Christ
 
ASH302's Avatar
 
Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,467
Re: Need Some Rearend help/info

yea for sure come back and let us know what you find out.
I'm not far from college station.
Hope it works out with the parts.
Just crazy.

ASh
__________________
2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016

Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020

ASh
ASH302 is offline   Reply With Quote
Old 01-18-2021, 02:47 PM   #18
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

Quote:
Originally Posted by ASH302 View Post
yea for sure come back and let us know what you find out.
I'm not far from college station.
Hope it works out with the parts.
Just crazy.

ASh
Well this is what I have learned on this situation.

For the Mach 1 diff carrier spider gears, nobody makes them. I have called and called with many people and only suggestion I got was to buy any parts listed and try them.

Well thats exactly what I did,bought 4 different sets of spider gears and not a single one worked. Not to worry about money spent,they were all returnable.

Only option is to replace the entire carrier as a whole and I will not be going with the Ford part. Probably gonna get something like a Eaton or Yukon since they can be rebuilt. Im told they will work. My cousin that runs his own speed shop says there shouldnt be any issue going that route.

A couple Ford parts dealers said the mach 1 is the only new edge mustang thats designed that way. I can get the 7.5 and GT/cobra 8.8 parts but nadda for mach and I searched all over for those spider gear for posi everywhere.

Now if someone else knows something more than what I have learned,please give us the info....lol.
Twitch is offline   Reply With Quote
Old 01-18-2021, 03:35 PM   #19
DSG2003Mach1
700 HP Mach
 
DSG2003Mach1's Avatar
 
Join Date: Nov 2003
Location: Orlando, FL
Posts: 8,332
Re: Need Some Rearend help/info

Im really surprised by that for the most part.

I run a trutrac in my 31 spline setup, no clutches to wear out
__________________
03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc...

'12 F150 FX2 Supercrew with Ecoboost daily beater
DSG2003Mach1 is online now   Reply With Quote
Old 01-18-2021, 11:49 PM   #20
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

Quote:
Originally Posted by DSG2003Mach1 View Post
Im really surprised by that for the most part.

I run a trutrac in my 31 spline setup, no clutches to wear out
The same here, I couldnt believe Ford did that. I would have at least thought an aftermarket company would have had something but no luck and if there is no one knows what part number it is to even try ordering.

It just sucks I have to buy the entire carrier setup since the diff has new bearings and seals, thats how I found out about the 2 chipped teeth on the spider gear. But since I cant find any part for it I put it back together for time being and thats been 2 months ago now....lol.

Its really not bad, I cant tell by driving it,makes no noise,no whine or popping at all. Backlash is in spec.

Is the trutrac a noisy rear?
Ive heard that you can hear the posi engage if I remember correct about the one I was reading about.
Twitch is offline   Reply With Quote
Old 01-19-2021, 06:49 PM   #21
jbrad88
Original Owner
 
jbrad88's Avatar
 
Join Date: Apr 2003
Location: Houston, Texas
Posts: 5,116
Re: Need Some Rearend help/info

I would recommend calling someone like Pyle Brothers Differentials in Baytown, Texas. Or Cliff Parsons at Parsons differentials in Beaumont. Two best third-member shops I know of.

Just a suggestion.
__________________
JB

03 Torch Red Mach 1
2019 Shadow Black PP1 GT 6M

Stainless Steel Systems Adrenaline Series
18x9 - Solid Gloss Black FR5's
Nitto 555 g2 275/35r18's
MGW Shifter With Mach1 Shift Knob
4.10's & 31 spline Mosers and 31 Spline Posi
Steeda Sport Springs Tokiko Illuminas
J@M weight Jacker LCA's
J@M Rear UCA's
J@M Braided steel brake lines
Eibach Sway Bars
jbrad88 is offline   Reply With Quote
Old 01-19-2021, 07:24 PM   #22
01TruBluGT
Registered User
 
01TruBluGT's Avatar
 
Join Date: May 2004
Posts: 1,248
Re: Need Some Rearend help/info

In my Mach the factory diff was changed out to a 31 spline FRPP Trac loc. At some point I had an "accident" and grenaded a few teeth off the ring gear. Pulled it all apart and the housing had a nice gouge in it from one of the teeth so I didn't want to re-use the housing. I had the factory 28 spline in the garage so I pulled it apart and put the clutches and spider gears out of the FRPP Trac loc into the factory Mach housing. Put it all back together and it's still working. Granted I only have about 38k on my Mach but this was done in maybe 06-07 and at least 10k on it this way.
01TruBluGT is offline   Reply With Quote
Old 01-19-2021, 07:49 PM   #23
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

Quote:
Originally Posted by 01TruBluGT View Post
In my Mach the factory diff was changed out to a 31 spline FRPP Trac loc. At some point I had an "accident" and grenaded a few teeth off the ring gear. Pulled it all apart and the housing had a nice gouge in it from one of the teeth so I didn't want to re-use the housing. I had the factory 28 spline in the garage so I pulled it apart and put the clutches and spider gears out of the FRPP Trac loc into the factory Mach housing. Put it all back together and it's still working. Granted I only have about 38k on my Mach but this was done in maybe 06-07 and at least 10k on it this way.
See I knew there was a part somewhere that would work. I'm def checking that out.
Twitch is offline   Reply With Quote
Old 01-19-2021, 07:53 PM   #24
Twitch
Registered User
 
Twitch's Avatar
 
Join Date: Apr 2019
Location: college station
Posts: 17
Re: Need Some Rearend help/info

Quote:
Originally Posted by jbrad88 View Post
I would recommend calling someone like Pyle Brothers Differentials in Baytown, Texas. Or Cliff Parsons at Parsons differentials in Beaumont. Two best third-member shops I know of.

Just a suggestion.

Thanks for the info. I dont go into Houston area often at all. I try to avoid it...lol.

Was hoping my cousin would know since he owns his own speed shop in Austin but he is mostly high end cars and classics, stuff he has had in there are old 60's shelby's, Ferrari and such.
Twitch is offline   Reply With Quote
Old 01-20-2021, 12:06 AM   #25
ASH302
Soldier for Christ
 
ASH302's Avatar
 
Join Date: May 2009
Location: Willis, TX at The Daddy ASh Ranch
Posts: 30,467
Re: Need Some Rearend help/info

I am blown away with this information about the stock mach diff. Just blows me away and why Ford would not have replacement parts or anyone just blows me away.
My rear end isn't stock so i'm not worried about it, but feel bad for you and others out there with the stock diff.

ASh
__________________
2001 lazer red v6 Mustang coupe sold in Aug 2006
2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012
2013 grey 6 speed coupe GT Mustang Sold in Feb 2014
2013 RED Dodge Charger R/T Sold Nov 2014
2002 custom Blue 02 Auto Trans AM Sold June 2015
1998 Cobra Black Sold summer 2016

Current
2009 Ford F350 FX4 March 2017 (work truck)
2003 OW 5.0 Mach 1 Aug 2020

ASh
ASH302 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 05:54 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
(c) 2002-2013 Mach1Registry.com

<