2/20/2023 0 Comments How to measure caster in jeep jl![]() ![]() Factory alignment specs for basically all vehicles call for a certain degree of positive (shown) caster. Zero caster is when the steering axis is at 0 degrees. Positive caster is when the bottom of the steering axis line is in front of the tire's contact patch. The steering axis is a line drawn through the upper and lower ball joints of the knuckle. How I take measurements while doing a front end alignment on a vehicle with IFS.Ĭaster is the fore or aft slope of the steering axis. Your Jeep Wrangler (JL) Alignment Caster / Camber Kit source with low prices and FREE shipping on Jeep Wrangler (JL) Alignment Caster / Camber Kit tires, wheels, bumpers, tops, lift kits and more. The off set caster on the passenger side help keep the jeep traking strait on the road due to the road crown nth degree is right on with the angles as tire get larger. The best way to set this is with a caster canber guage or a front end machine. ![]() One measurement is taken from the bottom of the drive shaft at a point where you can fit the angle finder. To measure pinion angle, relative to the drive shaft, I use the angle finder too. Yes, pinion angle and caster are directly joined together. Pinion angle takes precedence over caster on a TJ. ![]()
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