I have an Eaton True Trac with the correct gearing in the rear but want to upgrade to 35s with a Super35 and locker do I reuse my current gears.

Your info says you currently have 4.56. If that's correct you should be fine, on the high side, but fine. 35s with 4.56 should be close to my 33s with 4.10, which is high side, but fine. If you're looking to go lower, now is the time.
 
If you purchase the things I laid out, plus your gear kit, you'll be set with the rear. The kit from Revolution takes care of the 30 spline axles and new wheel bearings with seals. https://www.revolutiongear.com/prod..._tj_cherokee_xj_30_spline_upgrade_super35_kit I suggest you get in touch with West Coast Differential about a 30 spline locker and bearings/races/shims. After that the only things left are the gears, pinion bearings and seals.

Edit; there was one part that I had to find, and it was more difficult that it should have been. Eaton's instructions say Dana 35 C-clips came in two thicknesses, but the E-locker has to have the thinner one. My factory 35 C-clips were the thicker set, so I had to source some from the parts stores, which was very difficult. I wound up using Dorman part #5311

Is this the Dorman part you used, it doesn't mention Dana 35 so I was not sure. My jeep goes in the shop for new gears and Super 35 install in a couple weeks and I want to make sure they have the parts they will need.

https://www.dormanproducts.com/p-78165-05311.aspx?origin=keyword

Thanks for this write-up, its been extremely helpful and helped me make a decision on the Super 35 kit from Revolution.
 
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Thanks, the manual says it needs to be 0.156", but I haven't found the thickness of the 5311 part anywhere. I may just order it and measure it when it gets here.

That's what I had to do. I think I went through 5-6 different part numbers before I found #5311 at the required thickness.