i found an 87 iroc z28, i was wondering if these cars came with discs on the back? I know it has tpi, im guessing its a 305, its an auto, i havent seen the car yet, vin is gifp2if2hli5i60 not sure which ones are ones or i's but hope someone can help me out! do they have the 22/34 wonder combo?

 

they don't use the letter I for VINs, so those are all 1s plus you missed a 1 at the beginning, and you are still one character short. Needs to be 17 total. I'm going to say it's probably a TPI 305 since it's most likey an F in the 8th position.

The were available with disc brake rears or drums. If it's an IROC it will have the wonder bar. The sway bars depend on what the car was optioned with.