Being the smart person that I am (yeah right ) I figured it would be in my best interest to get the parts I need in order to get an accurate speed reading with my 4.10's with my new TH350. Please let me know what I need and where I can get it. I'm running a 700r4 now and my speedo's off about 20mph with the new gears.

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82 Z28
355 carb'd, Edelbrock Performer RPM package (minus heads), Hooker Super Comps, Mufflex 4" offroad y-pipe, 700r4 with B&M shiftkit, '85 IROC 10 bolt rear with Richmond 4.10's & Auburn posi unit, Lakewood 50/50 drag shocks. Shooting for 3000lbs w/ driver.

The car's website (New design in progress...very cool look)

(383/TH350 buildup this winter)

AIM: Unitedhope
ICQ: 77979548

 

Check out www.tciauto.com. Click on "site index", then trans parts & accessories. At the bottom of the page is a speedo gear calculator site. Put in your gear ratio & tire diameter, then play with the speedo drive (or driven, for that matter) gear teeth # to get what you want. The page also shows the gears available for the different trannys including color/teeth combos. A good place to start is with the drive gear currently in your tranny to see if you can get what you need with it.

The dealer is the only place I know to get the gears you need.

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82 Berlinetta, orig V-6 car. Rescued w/86 LG4/TH700R with all harnesses, sensors, ECM, etc. 2.73 open. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LB9 w/ZZ3 cam, exhaust, paint, etc.).
57 Bel Air, my 1st car. Currently 396 .030 over, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.