sm1nts2escape
Registered Member
Just wondering.Thanks
K3500 should mean a IFS truck with the 9.25" AAMCo front diff.
K30 and K35 were the pre IFS trucks.
iirc gmc used 3500 and chevy used 30


+1.
K10, K20, K30= Chevy.
k1500, K2500, K3500= GMC.
Only concerning the 73-87 body style though.![]()