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  #1  
Old January 18th, 2014, 10:00 AM
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universal joint identification help

Trying to replace u joints in acquired drive shafts (not sure what year) and bought moog 369 but they are two long 82mm. The ujoints I took out say "GKN 9J" and measure roughly cap to cap 77.5mm but i had to beat it out pretty good so might be a tad off. Trying to source some locally today at local parts stores...any help?
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  #2  
Old January 18th, 2014, 10:05 AM
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what year 110, I think they changed them at some point. NAS trucks take a precision 344, Im not up to speed to the grey market junk
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Old January 18th, 2014, 10:26 AM
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Quote:
Originally Posted by rover4x4 View Post
what year 110, I think they changed them at some point. NAS trucks take a precision 344, Im not up to speed to the grey market junk
GKN is not a junk aftermarket brand. The are a well respected mainstream brand. I currently have at least a pair of them under my truck that I purchased off the shelf at a local California auto parts store.
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  #4  
Old January 18th, 2014, 11:29 AM
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Quote:
Originally Posted by rover4x4 View Post
what year 110, I think they changed them at some point. NAS trucks take a precision 344, Im not up to speed to the grey market junk
I'm pretty sure the Precision 344s are for 90s only, if I recall the 110 UJs are different spec.
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Old January 18th, 2014, 11:34 AM
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i wasnt bashing GKN
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  #6  
Old January 18th, 2014, 11:46 AM
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Quote:
Originally Posted by rover4x4 View Post
what year 110, I think they changed them at some point. NAS trucks take a precision 344, Im not up to speed to the grey market junk
As put in my post I don't know what year the shafts are. 344 matches up to over all size to the GKN but does have a slightly longer cap that I hope is ok.
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Old January 18th, 2014, 11:47 AM
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Car Quest carries GKN.
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  #8  
Old January 18th, 2014, 11:50 AM
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The bearing cap diameter is also needed
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Old January 18th, 2014, 11:53 AM
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Quote:
Originally Posted by Dennis View Post
The bearing cap diameter is also needed
I did confirm it's the same to 344 in the store. I'll post up soon confirming they installed ok.
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Old January 18th, 2014, 03:19 PM
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Confirmed gkn 9j / gkn9j is moog or precision model 344 universal joint.
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  #11  
Old September 22nd, 2014, 11:54 AM
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Heads up: I ordered some Moog/Precision 344 U-joints from Amazon... the fit looks correct, but the grease screw is on the top/bottom (at least, on the units that I received), which does not work.

Travis
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Old September 22nd, 2014, 12:20 PM
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Quote:
Originally Posted by tgraham View Post
Heads up: I ordered some Moog/Precision 344 U-joints from Amazon... the fit looks correct, but the grease screw is on the top/bottom (at least, on the units that I received), which does not work. Travis
what do you mean top/bottom?
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  #13  
Old September 22nd, 2014, 12:28 PM
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Quote:
Originally Posted by flippedrover View Post
what do you mean top/bottom?
I suppose top/bottom isn't the best description, maybe "longitudinal axis" as it would be once installed. See attached illustration.

Travis
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  #14  
Old September 22nd, 2014, 12:41 PM
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Ha! That's interesting. Have fun greasing those!
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Old September 22nd, 2014, 12:54 PM
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Quote:
Originally Posted by nathanwind View Post
I'm pretty sure the Precision 344s are for 90s only, if I recall the 110 UJs are different spec.
what UJ for NAS 110's?
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  #16  
Old September 22nd, 2014, 01:05 PM
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There are two sized joints used in Defenders.

1310 Series, 5-153x: 27 x 81.8 mm They started using these in the series 2a? and into early 90/110 production.

1300 Series, 5-4x: 27 x 74.6 mm. Everything after the early ones and I think before Series 2a.

Just quickly measure the length between caps to tell which one. It is over a 1/4" difference, so hard to mix them up.
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Old September 22nd, 2014, 01:18 PM
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I've used the Precision 344s, and previously they had them in the "Y" (not where you pictured). That is odd they'd change them. Also remember you need to (with the zerk in the Y anyhow) orient the zerk so it is under compression when the driveshaft spins (versus pulling away from the zerk).
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  #18  
Old September 23rd, 2014, 12:13 PM
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Quote:
Originally Posted by fishEH View Post
Ha! That's interesting. Have fun greasing those!
actually really easy greasing those. My front shaft has that type of U joints and it's been easy to grease.
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Old September 23rd, 2014, 01:11 PM
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Quote:
Originally Posted by flippedrover View Post
actually really easy greasing those. My front shaft has that type of U joints and it's been easy to grease.
Do yours have a 90 zirk fitting ?
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  #20  
Old September 23rd, 2014, 01:50 PM
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I have had a number of custom shafts made recently for 110 auto conversions and I drop the old rover shaft off with UJ's that are fine and the dude puts new ones in as a matter of practice ea time. He's installing Spicer 5 153x joints and charging me $8.80ea fwiw. I see John has nailed the fitments.

List price for the Spicers is $14.08 ea.

Hope that helps someone out.
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