Hey fellas, im looking for a universal u joint that fits my chevy drive shaft to ford 9 inch.. Transmission is a m 21 if that's any help... thanks
So? You can't measure both joints?Tab to tab on yoke is 3 5/8, 1 1/8 cap dia. On yoke the car came with a 1969 firebird rearend in it so it has a universal u joint. Will this effect anything? Sorry for the confusion. And thanks for the help.