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Transmissions and Drivetrain Need help with your trans? Problems with your axle?

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Old 10-29-2007, 06:44 AM   #1
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Repaired TH700 3-4th gear. But no reverse?

Hi. I recentley repaired my tranny; New 2-4 band, reverse input drum and clutch plates ++
All forwards gears work just fine but reverse gear is gone? Could this be caused by the wrong check-ball stack-up or is that more like believing in santaclaus The reverse input drum is now a pre 87 mod and the tranny is 88+

Thank you for your time

Last edited by zoloft; 10-29-2007 at 02:58 PM.
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Old 10-29-2007, 03:56 PM   #2
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Re: Repaired TH700 3-4th gear. But no reverse?

I have snooked around on this great forum and I found this reply concerning the input reverse drum:

look here they are all interchangable as long as you use the hardware that comes with each assembly.the piston type and clutch thickness as well as the cushion plate have changed over the years so just order a loaded drum any year.the diameter of hole that feeds the drum is the only difference in oil routing that changed.i interchange all the time,no problem.need a drum loaded ?contact us 65.00.

My old drum had no "oil-hole" in the front of the drum. It also had like a flat plate in the buttom, which my newly installed drum doesnt have. Im so irritated over myself for not getting the exact same drum, but still I hope that a different checkball setup would help me get my reverse back.

btw I didnt buy a stacked up drum. Used new parts from repair-kit, replaced the plates as in old drum..

Last edited by zoloft; 10-29-2007 at 04:05 PM.
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Old 10-30-2007, 05:40 PM   #3
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Re: Repaired TH700 3-4th gear. But no reverse?

Any suggestions? Anyone??
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Old 11-02-2007, 11:02 AM   #4
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Car: 1992 RS
Engine: 3.1
Transmission: 5 spd

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Re: Repaired TH700 3-4th gear. But no reverse?

I found this post. The important part is no engine braking during decel.

http://www.thirdgen.org/techboard/tr...se#post1693846 (Trans Rebuilt, But NO REVERSE!)
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Old 11-02-2007, 12:32 PM   #5
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Re: Repaired TH700 3-4th gear. But no reverse?

Before you pull the transmission, take the valvebody out and make sure your gaskets are not covering any holes, there are two different year gaskets
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Old 11-02-2007, 12:32 PM
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bad, band, braking, do, engine, fourth, gear, repairing, reverse, reversing, th700, th700r, thm700, transmission, weak
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