u- joints

Ok so I have 7290's right now BUT they are the greasable kind which I'm told are weaker because of the grease run way's within them,I'm confused are the 1350's a spicer number or a mopar number????? Will i have to change the diff yoke and the trany yoke???? THanks Guy's Steve
Yes you will have to swap yokes,as the 1350 is bigger than 7290/7260 yokes.Checkout Mancini,s Racing under driveline and look for driveshaft.Good luck.