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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
i have a JK 4 door with auto and 37's. I started with 513 and then went to 538's. My opinion is that 513 is perfect match with 35's, and 37's should consider 538's, at least with auto trans.
I agree with this, 5:13 w/ 35's/auto; great match. 5:13 w/37's need 5:38