Anyone know what gears are in a Iroc-Z 1986 with a 305?
All I know is on the punkin it has 10 bolts, that mean anything?

 

Most likely 3.23's

 

I have the same car..... 2.73 posi/lim. slip
look in the glove box for all codes beginning with G

 

well, to be honest, i looked and looked, and i didnt think they came with a glove box, i know it sounds stupid, lol, but if there is one there, i cannot find it

 

i will spell it out for you.... C E N T E R C O N S O L E... behind the shifter, by your right arm, what else would I be referring to?

 

CENTER CONSOLE HUH???
I THOUGHT IT WAS A GLOVE BOX???

 

Well thats one way to get help around here.

I have a 86 Z28 LG4/T-5 and it has a 3.23 rear gear. You could always get under your car and check.

 

I would like to apologize for the smart mouthing I did, Guess I had a bad day and took it out here, Turns out, you were right, still not sure about the glove box thing, but I dont care, The codes were exactly where you said they would be, in that compartment, I know now what everything is, so I will thank you, and I apologize again.....sorry dude

 

I deleted the name-calling posts. Play nice now, ok? I hope you found your info.

 

How does your Iroc run with the 350 and 5-speed, I have an 86, originally 305, 5-speed, but now a 350 5-speed, I was wondering how much horse you got along with torgue, and what type 5-speed, I would like to build mine up to 300 horse, maybe little more , so any info like, what cam, crank, bore and stroke, And mine is going to be a 4-brl, not tpi or tbi..........anything like that would give me some ideas to what I could use to get this amount...thanx...........John

 

Uhm... the link is in my sig, and I dont own an IROC.