what is the stocj u-joint for a 66 with c4/8"

[jb1dsl]

Im having a driveshaft built and need to know stock joint size. The guy sia dhe thinks it is a 1310, he said find out for sure. he is building it with 1330 on the shaft side and 1310's on the trans and rearend side

thanks

 

[65ShelbyClone]

he is building it with 1330 on the shaft side and 1310's on the trans and rearend side

Stock should be 1310 front and rear. If you have 1330s put on the shaft, but keep the 1310 on the trans and diff yokes, then you'll need the Ford Racing 1310/1330 hybrid joints. Those are about twice the cost of straight sized joints.

 

[jb1dsl]

will 1330's fit on the trans and diff yoke?

 

[65ShelbyClone]

If you have a non-hipo 289, automatic, and 8", then no. 1330s are bigger diameter, wider, and thus not interchangeable.