Join Date: Aug 2000
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Re: Pinion Seal is leaking, How hard to fix?
No, It's pretty easy. As long as you don't over-torque the yoke... You should be able to check the pinion pre-load, then take the nut and yoke off, pry out the old seal drive the new one in and put the youke back on... then gradually tighten down the nut (checking preload regularly) till it's about the same as it was ( /- 5 in. lbs) then put the driveshaft back in and go.
I would get two seals though (just incase you garf the first one putting it in it saves a trip). Also, there is usually a crush sleeve on the pinion shaft between the bearings to control the preload, if you over torque the nut you'll have to take everything apart and replace that sleeve, so be care-full putting it back together. Otherwise it's definately something you can do F.O.B. or whatever.
89 CJ/YJ thing 350 TBI, 700r4, NP231 SYE, 3 inch body lift, 4" superlift, 33's and an appetite for mud!!!