Here's the comparison between the old Wesco 3 U joints that fit and the 7290 from Spicer I just bought and measured. The SKF UJ's that are wobbly/ on the drive shaft have identical dimensions to the Spicer. I sent this to Brewers to see what they say. Drive shaft shop opens at 8, will see what they say. What else is bizzare is, the 2 old WESCO 3 U joints are identical. The sloppy SKF tranny side U joint NAPA sold me is CLEARLY part Number SKF 308s which is nowhere to be found on-line. The axle end U Joint NAPA sold me is NOT sloppy in the drive shaft and has a part number SKF 1569.