single cardan vs. double cardan u-joint? Adjustable track bar compatibility? - JeepForum.com
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Unread 03-03-2007, 07:18 PM   #1
Mr. Tarmac
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Join Date: May 2005
Location: SE
Posts: 201
single cardan vs. double cardan u-joint? Adjustable track bar compatibility?

I was looking at rear adjustable track bars on the JKS web site.

http://store.jksmfg.com/merchant2/me...bar_Components

The notes for the track bars have these comments"

"4Vehicle must be equipped with CV-type rear driveshaft w/double cardan U-joint."

"7Vehicle must be equipped with slip yoke-type rear driveshaft w/ single cardan U-joint."


I've also seen RE's track bar brackets come in an angled for CV joints, and a straight version for slip yolk type. So my question is this: Why does the CV shaft require a different geometry track bar or bracket? The pinion angle is defined by the upper and lower control arms (which are fixed on stock TJ's). The track bar has no impact on this angle, so what difference does it make which track bar or bracket you use?

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Unread 03-03-2007, 11:43 PM   #2
Nikos
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2000 TJ Wrangler 
 
Join Date: Feb 2006
Location: Athens Greece
Posts: 472

If you have a CV (or double cardan) rear driveshaft you have to change the pinion angle. (in order to do that you need upper rear adjustable arms). the track bar and bracket you mentioned are working great with the new angle. if you don't have cv shaft you don't need the "special" track bar or bracket.
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