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Originally Posted by zr-1assassin
guys, i just had a gm mechanic (there corvette guy) mechanic tell me there were two different transmissions put in the zr-1! i of-course told him he was crazy. am i wrong??? one was a t-10 and the other was a t-6 or something??? he said some where 6-speeds and the others were 5 speeds with overdrive! help me out on this if you have heard about this please
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This probably will help...I think it answers everything...they are ALL ZF 6 speeds, but there are two versions and the two ZR-1 versions have different input shafts/guide tubes than the other C4 units.
QUESTION: Are the 6-speed transmissions in the ZR-1 the same as in other 6-speed C4s?
ANS: No, the unit in ZR-1s is specific to the car and unlike those used behind L98s, LT1s or LT4s. The difference is longer input shaft (~$550) and longer guide tube (~$110). This conversion requires unit disassembly (~4 hours labor). Also there are two different units (torque rating) used in the ZR-1: 1990-93 1/2 and 1993 1/25-95.