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Hi there I drive a 2003 Jeep TJ, 4.0 Litre, Six Cylinder. At some point this weekend or next weekend I was going to drain out the gear oil in both differentials and replace both axle seals in the front differential but before I can do the axle seals I need to measure the ring gear backlash, pinion bearing preload, and differential bearing preload because I may have to take the differential gears out of the differential case to get at both axle seals. To add more information on my vehicle, I have an open differential full time four wheel drive, a Dana 30 in the front and a Dana 35 in the rear.
Now, my question is: How do I position the dial indicator to get the ring gear backlash, differential bearing preload, and pinion bearing preload? (I may not have to find the pinion bearing preload but I’m not sure really) If theres any diagrams or videos I can see it would be helpful. Like I said before, I need to do this because I am replacing both axle seals in the front differential and I may have to take all the differential gears out to get at them and I need to put them back in the same way.
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