The TH (turbo-hydramatic) 700R4 was developed for use after 1982 in GMC and Chevrolet cars and trucks.

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We have a BossHoss trike with shifting problems

We have Boss Boss trike with a 700 r 4 was running fine went t o down shift, lost all gears but neutral and reverse.Linkage fine and tranny full. Recently bought the bike so not too sure what happened. Any feedback would be appreciated.

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Debbe, from what I have read in forums on 700 r 4, lost forward gears, they are say it is the forward clutch pack/sprag gear or rear planet. Time to have a good Technician have a look, diagnose and estimate repair/rebuild. You can also google 700 r 4 transmission no forward gears, lots of info. out there.

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