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Modified JK TechTech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.
PLEASE DO NOT START SHOW & TELL TYPE THREADS IN THIS FORUM
Any thoughts on rear axles? I see that one brand uses 4140 chromoly and another uses 4340 chromoly. Anyone know the difference?
4340 is the better axle. Try and find a good domestic shaft like Superior's Evo Series or from Dutchman. The import shafts are prone to very spotty quality.