With the S10 trucks, the 2wd rears are 4 inches narrower than the 4wd / AWD rears. Many were 3.42 & 3.08, but some 4cyl trucks had 3.73s.
Get the wider.
MV


46 Chev One Ton Panel - S10 Frame Project

"What if the Hokey-Pokey is REALLY what it's all about?" - J. Buffet