I have a Spons Extreme-Duty Driveshaft for the Tremec T-56 Swap and he used the spicer 1350 u-joints but the back one is that crazy one that is a 1350 to the stock sized one on the rear end.

All the part stores around here want a part # and I was hopping someone had the part # as I need to get this one Sunday if I can.

Thanks

 

447 or 447x

Try Napa

 

Thanks.
NAPA gave me one the other day and it's a 372 and that's not the right one.

 

You're welcome. Good luck with your swap.

 

No one had a 447 and then Monday Spon sent me a email and said this.
Spicer # 3022X
So I looked that up and came up with a precision # 372.
NAPA is changing the #'s they use so the new NAPA # is Z40-0356.

I got that one and it's the right one.

This is the rear U-joint for the drivshaft from Spon for the retrofit T-56.

Good place to cross-reference #
http://www.cvaxles.com/drivelineimages/rockford.htm