bowed coil springs
01-17-2017, 09:00 PM
#18
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Join Date: Feb 2012
Location: newjersey
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Year: 2000
Model: Cherokee
Engine: I6
I know I need both, but for now lowers will have to do. It doesn't drive horrible now, but not great. Eventually I'll get uppers too. Got the lowers coming in this week hopefully installed by next week
01-18-2017, 10:20 AM
#19
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Join Date: Nov 2012
Location: Fort Collins, Colorado
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Year: 1998 (buggy), 1998 DD
Model: Cherokee
Uhhhh, its actually pretty spot on. His form of help, is going to require the proper parts...
Someone didn't do all their homework before adding a lift, and is getting to pay the price now. This is a pretty well known issue with trying to lift and use OEM control arms. You live and you learn...
From the factory, as the uppers aren't really adjustable, you would be correct.
However, on most other suspension setups, it is usually regarded that the lowers set the axle (i.e. wheelbase), while the uppers set pinion angle (when both are adjustable).
Someone didn't do all their homework before adding a lift, and is getting to pay the price now. This is a pretty well known issue with trying to lift and use OEM control arms. You live and you learn...
How in the hell would the upper arms solely be responsible for setting the pinion angle? The caster is adjusted by shimming the LCAs from the factory. The caster and the pinion angle are directly related, therefore the logic would tell me the pinion angle is adjusted by the LCAs from the factory.
I have 5" of lift with CAD brackets. I installed fixed length LCAs at 16 1/4" (stock are 15.75) and then shimmed the LCAs 3/8". That put my caster at a decent degree that drives nice. Still running the stock UCAs. Drive this thing to work every day and it handles quite well. Springs are straight up and down. 4WD works great at 40 mphs or so. Haven't had a reason to drive faster in 4WD. In 2WD it runs at 80 smooth with no vibes.
I have 5" of lift with CAD brackets. I installed fixed length LCAs at 16 1/4" (stock are 15.75) and then shimmed the LCAs 3/8". That put my caster at a decent degree that drives nice. Still running the stock UCAs. Drive this thing to work every day and it handles quite well. Springs are straight up and down. 4WD works great at 40 mphs or so. Haven't had a reason to drive faster in 4WD. In 2WD it runs at 80 smooth with no vibes.
However, on most other suspension setups, it is usually regarded that the lowers set the axle (i.e. wheelbase), while the uppers set pinion angle (when both are adjustable).
