2nd opinion - 2003-04 Mach 1 Registry Owners Club

Cooldbz12 · 07-14-2017, 11:04 PM

Ok guys about to beef up my rear end, going to order everything next week. I made a list of everything that i need to change out and what i should change out since im going to be there. If you see something i should add or maybe i dont really need let me know.

31 spline Axles
31 spline Differential
3.73 Gears
Axle bearings / seals
Pinion flange
Rear Lower Control Arms
Upper control arm Bushings
Quad shocks

Already have a Ford Racing Alum. driveshaft

311-420 · 07-14-2017, 11:28 PM

FR gear install kit
Gear oil and modifier if you use oil that doesn't already contain it
Differential cover

Quad shocks are pointless once you've got real lower control arms. Id save my money on that.

Cooldbz12 · 07-15-2017, 12:05 AM

Quote:

Originally Posted by 311-420

FR gear install kit
Gear oil and modifier if you use oil that doesn't already contain it
Differential cover

Quad shocks are pointless once you've got real lower control arms. Id save my money on that.

I was reading up on that and i think i am just going to take them off the list. Thanks!

TKat13 · 07-15-2017, 03:22 PM

2nd on the quad shocks...

What studs are you getting with your axles? If you are drag racing, you should get 3" studs; Most Axle companies will install them for you if you order them with the axles. I prefer ARP studs.

upgraded diff cover should be another good idea, the aluminum ones are very rigid and will help prevent leaks. The factory covers are easily bent thus causing leaks. Also, the upgraded ones also strengthen the whole setup. Just read the instructions when installing it to properly set the tension bolts.

j rick kirby · 07-16-2017, 07:00 AM

3 qts of the Royal Purple gear oil and skip the friction modifier.

Cooldbz12 · 07-16-2017, 02:32 PM

Quote:

Originally Posted by TKat13

2nd on the quad shocks...

What studs are you getting with your axles? If you are drag racing, you should get 3" studs; Most Axle companies will install them for you if you order them with the axles. I prefer ARP studs.

upgraded diff cover should be another good idea, the aluminum ones are very rigid and will help prevent leaks. The factory covers are easily bent thus causing leaks. Also, the upgraded ones also strengthen the whole setup. Just read the instructions when installing it to properly set the tension bolts.

I didnt even think about the studs, i figured the stock ones would be fine. But i guess ill look into that now.

fastlane · 07-17-2017, 08:30 AM

If you plan on drag racing the car, definitely get the studs and also pick up open end lug nuts. The stud must protrude into the hex portion of the nut at least the diameter of the stud. 1/2 in diameter stud means stud must protrude a minimum of 1/2 in past the face of the wheel surface for non-stock wheels per NHRA/IHRA rules.

07-14-2017, 11:04 PM	#1
Cooldbz12 Registered User Join Date: May 2007 Location: FS, TX Posts: 796	2nd opinion Ok guys about to beef up my rear end, going to order everything next week. I made a list of everything that i need to change out and what i should change out since im going to be there. If you see something i should add or maybe i dont really need let me know. 31 spline Axles 31 spline Differential 3.73 Gears Axle bearings / seals Pinion flange Rear Lower Control Arms Upper control arm Bushings Quad shocks Already have a Ford Racing Alum. driveshaft __________________ 2003 Mustang Mach 1 (Bought 11/16/2005) Eaton Swapped @7psi (On 10/24/15) 13.2@107 (Bone Stock Run) 2000 3.8 Mustang Sold But Will Never Be Forgotten

07-14-2017, 11:28 PM	#2
311-420 Can't be bridled Join Date: Sep 2007 Location: Texas Posts: 7,006	Re: 2nd opinion FR gear install kit Gear oil and modifier if you use oil that doesn't already contain it Differential cover Quad shocks are pointless once you've got real lower control arms. Id save my money on that. __________________ 2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁

07-15-2017, 03:22 PM	#4
TKat13 Mach-T Join Date: Jun 2004 Location: DFW Posts: 2,865	Re: 2nd opinion 2nd on the quad shocks... What studs are you getting with your axles? If you are drag racing, you should get 3" studs; Most Axle companies will install them for you if you order them with the axles. I prefer ARP studs. upgraded diff cover should be another good idea, the aluminum ones are very rigid and will help prevent leaks. The factory covers are easily bent thus causing leaks. Also, the upgraded ones also strengthen the whole setup. Just read the instructions when installing it to properly set the tension bolts. __________________ Darrell Black '04 Mach 1 Track Times (bone-stock w/drs):60 ft - 1.90 \| 1/8 - 8.67 (100 shot,E85,4:10s,Street tire):60 ft - 1.67 \| 1/8 - 7.88 New build - 750rwhp; not track tested (yet) Mods: Build Log Paint&Body Tuned by Manny @ HPP

07-16-2017, 07:00 AM	#5
j rick kirby Registered User Join Date: Aug 2004 Location: Winston-Salem,NC Posts: 1,802	Re: 2nd opinion 3 qts of the Royal Purple gear oil and skip the friction modifier. __________________ 2003 Azure mach1 5 speed with IUP Maximum Motorsports R&T Box with Torque Arm and lots of other bits and pieces here and there 2012 Candy Red Metalic Premium GT with Brembo/Trak Pak and 373s HPDE Instructor

07-17-2017, 08:30 AM	#7
fastlane Registered User Join Date: Mar 2011 Location: Fort Worth, TX Posts: 209	Re: 2nd opinion If you plan on drag racing the car, definitely get the studs and also pick up open end lug nuts. The stud must protrude into the hex portion of the nut at least the diameter of the stud. 1/2 in diameter stud means stud must protrude a minimum of 1/2 in past the face of the wheel surface for non-stock wheels per NHRA/IHRA rules.

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