[fredscarryall]

Here's a picture of a 1998 S10 ZR2 8.5 rear axle with 63" wms to wms (wheel mount surface to wheel mount surface) With gov lock and 3.73 ratio. 38.5" center spring perch to center spring perch so it will fit perfect on s10 leaf springs. This info is not always a gaurantee, gm seem to do odd things at times.