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Old 02-25-2011, 10:46 PM   #1
Join Date: Nov 2008
Posts: 878
ou812 is on a distinguished road
steering gearbox seal fix

98 sport pouring oil from power steering seal

after reading all the reports saying just replace the whole box
I opted to buy the $18 seal kit at advance auto

pulled the box down and appart a 10 ton puller heat and a hammer to pull off the pitman was indeed hell

remove the rear cover and pitman shaft as I dumped oil all over my crotch
removed the internal snap ring and used a 1 3/16" socket with extension to tap the bearing and seals out

only to find the seals I got from advance with the 3 day wait was wrong
same i.d. and o.d. but the seal width was twice as high so I couldnt fit both seals.

I installed the bearing back in
installed the thick double lip seal
one steel backing washer and perfect room for the snap ring.
presto no leaks far bot I plan a durango box soon
the backing washers that came with the seal kit were too small i.d. to fit the pitman shaft o.d. so Im assuming either I have the wrong kit or someother reason.

none the less my crotch is slick
It is possible for a novice mechanic to eaisly replace the seals
dont dump oil on your crotch
remove the pitman arm while the box is bolted to the jeep,leave it hooked to the balljoint.I used heat from a propane torch and a heavy duty expensive Proto gear puller with a 24" crescent wrench.Tightend as much as I could then beat the arm with a 3/4" rod and 4lb maul,several tries.Once you heat its the point of no return as you just melted whats left of the old seals.I also used a c-clamp to hold the jaws of the puller tight

unbolt the gearbox and catch it then undo and bleed the two lines and move the dripping lines out the way to drop the box lower to remove the bolt that holds the steering shaft to the spline input shaft,pull the bolt all the way out
remove the rear gearbox cover to the pitman shaft over a bucket or pan cause there is almost a quart of fluid inside,tap the pitman shaft and the cover stays attached to the pitman shaft so the shaft and cover come out as a whole
use plenty brake cleaner you want no trash inside the box
use a 1 3/16" socket to drive out the bearing from inside the box,after you have removed the snapring in front of the seal
hammer out everything
install the bearing from the outside with the socket install the right seals,washers

im a hydraulic mechanic so hers what I know:
even though stock has two single lip seal that were very thin I only installed one double lip even though my kit came with two seals
the washer needs to be infront the seal to hold the pressure and stop the seal from blowing out

install bearing,seal and the washer on top the seal in that order.The washer needs to be against the snapring to stop the seal from blowing out,seal against the snapring will blow out.

The kit I had was National PSK-1 kit,none of the washers would fit the shaft.Im assuming its the wrong kit for a 98 TJ
Pincho De Lapiz
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Old 02-25-2011, 10:50 PM   #2
Join Date: Nov 2008
Posts: 878
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also line you wheels up stright befor you pull it apart no shaft has to be marked as long as the wheels are stright.Both the pitman arm and steering shaft only go on one way
Pincho De Lapiz
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