I have been keeping my eye out for a 1st generation, and would like to know what differences the pre91.5 holds to the later 1st gen's. Other than innercooler. which is a better base to start working with?

Also what year did the Getrag come out?

 

Getrag was in all 1st gen years. Post 91.5 trucks have the "Chevy" style front hubs and brakes. 92 and up have a deeper frame dimension and bigger bolts for the spring bushings on the front. 92's also have the voltage regulator built into the ECM, and a crank sensor (and wiring under the dash for a tach). 92's also reset certain codes for the ABS automatically. The 91.5 to 92.5 trucks have the 21cm turbo housing . I would say get a '92.5 or later, if you have a choice . . .

 

Truck build date is Sept 25,1991, but listed as a 92 So im guessing it has the 21cm turbo. How much does the 12cm/14cm's go for?

 

12cm cheap to free, 14cm arm and a leg