Caster with 4" lift and 37s should be around 7+ in the front what should it be in the rear the 4.2+ the stock number or should it be the same as the front ?

 

7 degrees caster on a 4" lift will destroy your front driveshaft. You want to be at about 4.2-4.5 degrees in the front.

Rear caster does not apply to a JK as an alignment spec. Instead, the issue of concern is the rear pinion to driveshaft angle.

Where are you getting your information?


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From Eddie way of life in the top post above

 

He changed his opinion but never updated the FAQ.

You want factory spec caster with a 4" lift--especially with an aftermarket front driveshaft.


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Coll thanks I thought it was around 4.2 until I read the thread above you keep me from a big mistake i was at the ailment shop when I got your rebuttal

 

Cool.........