I am a first time user here and really like what I see. My question is this. I have a 1987 Iroc Z with the 10 bolt rearend and disc brakes. I am trying to figure out ( without pulling an axle) if I have 26 splines or 28 splines. If it helps, I have included the vin at the bottom. Thanks for any help.

1G1FP21F3HN112271

Eric D.

 

in 87, they were 26ers.

-b