quick question... can't remember
 

hey guys and gals... what size is a typical rear driveshaft u-joint for a 70 k10? i've bought about 5 of em but i can't remember to save my life! :banghead:

Should be 1310.

i'm dead sure yu're right. thanks. but now... a brand new question!!! a 14 bolt always has a 1350? i just bought a 14 bolt, but the guy i bought from is as cluless about the u-joint size as i was until yall helped me out. :)

About 90% of the 14 bolts have the 1350 u-joint. The later model 1 ton 14 bolts after 88 or 89 came with the 1410 yoke, depending on the GVW