Fixing speedo after gear install

[MACHTASTIC]

How does one go about adjusting the speedo after a 4.30 gear install?

I've heard using a handheld tuner is one way.

I've also heard speed calibrators hook up somewhere in the tranny?


Thanks for the input.

[jaimoe]

It is all done electronically. Either with a hand held tuner (the best way) or with a speed cal. The speed cal does the same thing but doesn't give you the other features that the had held does.

[ASH302]

i say spend the extra money on the hand held tuner plus with it gain some hp from it. it will be worth it in the end.

[MACHTASTIC]

I've heard handheld tuners are overrated for power gains and you're better off with a dyno tune.

But it'd be worth a try I guess if I get it to adjust the speedo.

Any suggestions on handheld tuners? Some with good reviews from fellow members.

[ASH302]

SCT will be your best one to get