post #1 of Old 12-25-2006, 06:53 PM Thread Starter
Muddy Cherokee
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1996 XJ Cherokee 
 
Join Date: Feb 2006
Location: Northern California
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Y-Link radius arm vs 4 Link and trackbar?

I was poking around TNT Custom's site and noticed that the long arm suspension they designed for the ZJ is 4 link, while the XJ long arm suspension is a Y-Link radius arm. I find this sort of odd because the ZJ and XJ essentially share the same front suspension, so why the design difference? Also, which would you think is better? It seems like the 4 link is better because it would create less binding through the suspension cycle. Any thoughts?


1996 Cherokee Sport
4.0L HO, AX-15, NP 231
RE 4.5" Lift, 32" Dunlop Mud Rovers, RE Hack'n'Tap, CV Driveshaft, D30/D44, 4.10's, Aussie Lockers, ZJ Tierod, F/R recovery points
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post #2 of Old 12-25-2006, 08:23 PM
Bryson
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I had the same question come to mind a couple months ago, and found that pretty much a 4 link front or 3 link with a track bar is really the ideal setup because if it's made right, it won't bind the DS or suspension components.

However, we also came up with the conclusion, that for all practical purposes the Y link is just fine for most jeeps. This is because the suspension doesn't compress a huge amount during normal operation causing any bind. When articulated though, the two setups are nearly identical. The only down side to the Y link for the jeeps I think is the overall stress put on the axle side bushings during articulation. when the axle twists, the upper Y link is going to want to extend and compress depending on which side of the axle, where as a 4 or 3 link would simply give a slight bump steer.


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post #3 of Old 12-26-2006, 01:42 PM Thread Starter
Muddy Cherokee
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1996 XJ Cherokee 
 
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Location: Northern California
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Would it be possible to retrofit the ZJ LA 4 Link onto an XJ?

1996 Cherokee Sport
4.0L HO, AX-15, NP 231
RE 4.5" Lift, 32" Dunlop Mud Rovers, RE Hack'n'Tap, CV Driveshaft, D30/D44, 4.10's, Aussie Lockers, ZJ Tierod, F/R recovery points
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