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Which U-joint?

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Old 09-16-2014, 08:00 PM
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Default Which U-joint?

So I'm installing a moser 12 bolt with a 1350 yoke on my buddy's car. We picked up a steel driveshaft from a 1992 transam. Turns out the steel driveshafts have slightly different u-joints than those on the 4th gen driveshafts so the precision 348 u-joint adapter I picked up will not work. (348 joint mates the stock f-body driveshaft with a 1350 yoke.)

Looked around for a while and haven't come up with anything yet.

I basically need a u-joint that fits a 1992 transam steel driveshaft and a 1350 yoke.

Measurements of the 1992 transam u-joint:
Length from cap to cap: 3.65"
Diameter of caps: 1.125"


Thanks in advance
Old 09-17-2014, 07:12 PM
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That (1 1/8") cap is a Ford-specific size, maybe your caps are actually 1 1/16"? That would be a GM 1330 joint. I know because I'm going through this agony myself. I have a '68 C3 big block T400 trans yoke (1330) while the pinion yoke on my 9" has the 1 1/8" caps ("Cleveland 55-55-675" u-joint)...
Old 09-19-2014, 11:44 AM
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Originally Posted by S10xGN
That (1 1/8") cap is a Ford-specific size, maybe your caps are actually 1 1/16"? That would be a GM 1330 joint. I know because I'm going through this agony myself. I have a '68 C3 big block T400 trans yoke (1330) while the pinion yoke on my 9" has the 1 1/8" caps ("Cleveland 55-55-675" u-joint)...
I believe you are correct. Ended up needing a precision 447 which I believe is a 1330 to a 1350.



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