2020 Unlimited Rubicon u joint size

[whitee27]

This might be a dumb question but I can't find the stock driveshaft u joint size. I'm just doing some research for a lift and went down a rabbit hole reading on swapping out your front driveshaft when doing a lift. What is the stock driveshaft u joint size, 1310?

thanks in advance

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[Abramovich]

This might be a dumb question but I can't find the stock driveshaft u joint size. I'm just doing some research for a lift and went down a rabbit hole reading on swapping out your front driveshaft when doing a lift. What is the stock driveshaft u joint size, 1310?

thanks in advance

1310 is one of the part numbers, not a size. There are 2 sizes listed in most catalogs
1.062" or 1.188" bearing cap
3.219" or 3.625" long

Small one is a Spicer #1310, larger one is a Spicer #1350
I would bet the Sport is small one, Rubicon is large one, but really don't know.

 

[whitee27]

I have a Rubicon, thanks for your input.

 

[ChattVol]

1310 is one of the part numbers, not a size. There are 2 sizes listed in most catalogs
1.062" or 1.188" bearing cap
3.219" or 3.625" long

Small one is a Spicer #1310, larger one is a Spicer #1350
I would bet the Sport is small one, Rubicon is large one, but really don't know.

Not what I've found..I swapped rubi axles/transfer case into a sport almost 2 years ago. I called Spicer and the transfer case MFG first to find out if I needed rubicon driveshafts. They both said the v6 and 2.0 powered JLU driveshafts all have the same u-joints and they are the same dimensionally and in strength. I've been flexing my sport driveshaft wheelin alot for almost 2 years and it's doing fine.

 

[rustyshakelford]

This might be a dumb question but I can't find the stock driveshaft u joint size. I'm just doing some research for a lift and went down a rabbit hole reading on swapping out your front driveshaft when doing a lift. What is the stock driveshaft u joint size, 1310?

thanks in advance

1310 and 1350 are for aftermarket driveshafts. 1310 is smaller, 1350 are larger. Adams driveshafts has a lot of good info on their site about these. The problem is the factory shaft is much larger in diameter than the aftermarket ones. The shaft hits the cross member and prevents the axle from drooping to its full potential.

brett

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