We ran the Napa one in my sons car and he was going 10.50's.

Moparts Tech Archive
Drive Shaft & U - Joints

7260-7290 conversion U joint. Big to Small U Joint

does anyone else besides spicer make one? none of the parts houses around here sell spicer. they act stupid when i ask them to cross reference the spicer number to their brands. i dont want to order one from mancini because i wanted to change the center out of my truck this weekend. any info?

TRW part # 20226.

Or CR UJ347, or Precision 347. Dennis

Yes, the 5-527X is correct. Dennis

Mancini ........... 5-527X
Auto Zone ........... 2-0527
NAPA ............... NUJ240-0369
Neapco ............. 2-0527

Spicer 5-527X "is" discontinued. Neapco(New England Auto Parts Company)part number 2-0527 has a "forged" cross body with grease passages. We have beat on many Neapco 2-0527 over the years. Before non greasable joints became "all the rage", guys thought if it didn't have a zerk fitting, it was junk. The solid body is just a by product of the non greasable design. No need for grease passages as caps have positive seals vs pliable seals made to purge grease during maintenance. If you want a Spicer solid body joint then the best way would be to change either pinion yoke or weld yoke to match the other 7290 yoke. Then you could run Spicer part number 5-811x(solid body 7290). Also, Neapco has a similar offering in their new Gold series, part number 2-1175G. Carry On