Mr harold knight
Active Member
going to buy moog u-joints for my 1962 Impala part number 269 non-greaseable or #280 greaseable . what would be the best u-joint to get? Thanks
u-joint for driveshaft
- Thread starter Mr harold knight
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Mr harold knight
Active Member
Tripower do you have a part number for the spicer non-greaseable u-joint ? thanks for the reply
Its the 1310 series
Mr harold knight
Active Member
Thanks . I will measure my u-joints and see if I can fine a set to fit.
The old drag racers always insisted that the greaseable u joints were installed with the grease zerk installed on the compression side of the joint to prevent possible breakage. They felt that the lube hole did weaken the joint if indexed on the "pull" side. 
Leo
Leo
Please explain Pull side, and Compression side.
I will try. 
With the U joint installed, the trans yoke rotates to turn the drive shaft, the grease zerk should be on the "push" side above the drive shaft yoke. That will put the load into the lube fitting hole. If the U joint is indexed 90 degrees, the load would be "pulling apart" at the lube fitting hole. Hope this makes sense. Leo
With the U joint installed, the trans yoke rotates to turn the drive shaft, the grease zerk should be on the "push" side above the drive shaft yoke. That will put the load into the lube fitting hole. If the U joint is indexed 90 degrees, the load would be "pulling apart" at the lube fitting hole. Hope this makes sense. Leo
I run one weak joint up front on the yoke (1350). Maybe the weak 1350 is stronger than the best 1310? Last hard run down frontage road on slicks twisted a $150 yoke. I would rather replace the $20 joint up front. If you have to pick a spot to break, make it cheap.
59 NSS - 409 Charlie
Active Member
I have the box somewhere--If some one wants the number, I will look for it--What I ran for years drag racing is a joint for a ford truck-- 1 ton it looks bigger but it will fit--A old timer running a driveshaft shop years ago told me that and that is what I ran for years until I went to a strange one piece shaft with 1350 joints
I will try.
So, fitting toward the front of the car or back (on joints where the fitting is offset, and offset doesn't matter in regards to fitment)?
I'm not seeing how it's loaded in "compression" any more than "tension" given the rotational motion of the yokes. The output yoke will be putting a load on the joint in one direction, while the input yoke will be putting an equal and opposite load in the other.
My engineering sense makes me think it doesn't matter which way the zerk is facing.
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Cut to the chase, run with greaseless . You are all right, greasable fittings are weaker.