'99 2500 rear axle oil seal help?!!!!!
#1
07-20-2006, 11:09 AM
'99 2500 rear axle oil seal help?!!!!!
I've got a '99 2500 pickup and suspected the rear wheel cylinder was leaking. When I pulled the wheels last night I found the brakes saturated with axle oil - not brake fluid. As such, the axle shaft seal is leaking, but my Clymer manual doesn't have the procedure for these seals for the larger Dana floating axles....only the smaller axles used in the 1/2-tons. Can anyone provide a procedure (or source of one)? Since the blow-up suggests this seal is at the gearcase end of the shaft, I suspect it needs to be changed from the gearcase......right?.....or is it replaced from the wheel end of the axle (which would seem unlikely)? PLEASE HELP!!
KPKarey
KPKarey
#2
07-20-2006, 11:28 AM
RE: '99 2500 rear axle oil seal help?!!!!!
Unfortunately, I'm not 100% sure what size socket you need once you get the axle out, it's at work and I'm off the next 2 days...it's a 2 9/16" socket iirc...
Anyway, a basic procedure follows...jack up and remove wheel...remove bolts holding axle to hub...remove axle...there's some sort of locking ring or keyway inside to remove before using the large socket...it's been a long time since doing one, so I can't picture it in my head...remove large nut and remove hub (axle fluid will be inside, don't tip it on yourself) remove seal from hub...install new seal and reverse procedure to install, making sure to properly torque everything...hope this helps.
Oh, just looked thru the service manual from the "Merry Christmas " thread...procedure follows...
Ignore step 7 in "removal" and steps 1 & 2 in "installation" if not replacing bearings. Hope this helps. Torquing procedure is critical for this type of diff.
Anyway, a basic procedure follows...jack up and remove wheel...remove bolts holding axle to hub...remove axle...there's some sort of locking ring or keyway inside to remove before using the large socket...it's been a long time since doing one, so I can't picture it in my head...remove large nut and remove hub (axle fluid will be inside, don't tip it on yourself) remove seal from hub...install new seal and reverse procedure to install, making sure to properly torque everything...hope this helps.
Oh, just looked thru the service manual from the "Merry Christmas " thread...procedure follows...
AXLE BEARINGS
REMOVAL
(1) Remove wheel and tire assembly.
(2) Remove brake drum.
(3) Remove the axle shaft.
(4) Remove the lock wedge and adjustment nut.
Use Socket DD-1241–JD to remove the adjustment
nut.
(5) Remove the hub assembly. The outer axle bearing
will slide out as the hub is being removed.
(6) Remove inner grease seal and discard. Use
Installer 5064 and Handle C-4171 to drive grease
seal and inner axle bearing from the hub.
(7) Remove the bearing cups from the hub bore.
Use a brass drift, or an appropriate removal tool, to
tap out the cups.
INSTALLATION
(1) Thoroughly clean both axle bearings and interior
of the hub with an appropriate cleaning solvent.
(2) Install the bearing cups. Use Installer 8153
and Handle C-4171 to install the bearing cups.
(3) Apply lubricant to surface area of the bearing
cup.
(4) Install the inner axle bearing in the hub.
(5) Install a new bearing grease seal. Use Installer
8152 and Handle C-4171 to install the grease seal.
(6) Inspect the bearing and seal contact surfaces
on the axle tube spindle for burrs and/or roughness.
Remove all the rough contact surfaces from the axle
spindle. Apply a coating of multi-purpose NLGI,
grade 2, EP-type lubricant to the axle.
CAUTION: Use care to prevent the bearing grease
seal from contacting the axle tube spindle threads
during installation. Otherwise, the seal could be
damaged.
(7) Carefully slide the hub onto the axle.
(8) Install the outer axle bearing.
(9) Install the hub bearing adjustment nut. Use
Socket DD-1241–JD to install the adjustment nut.
(10) Tighten the adjustment nut to 163-190 N·m
(120-140 ft. lbs.) while rotating the wheel.
(11) Loosen the adjustment nut 1/8 of-a-turn to
provide 0.001-inch to 0.010-inch wheel bearing end
play.
(12) Tap the locking wedge into the spindle keyway
and adjustment nut. Try to ensure that the locking
wedge is installed into a new position in the
adjustment nut.
(13) Install the axle shaft.
(14) Install the brake drum.
(15) Install the wheel and tire assembly.
REMOVAL
(1) Remove wheel and tire assembly.
(2) Remove brake drum.
(3) Remove the axle shaft.
(4) Remove the lock wedge and adjustment nut.
Use Socket DD-1241–JD to remove the adjustment
nut.
(5) Remove the hub assembly. The outer axle bearing
will slide out as the hub is being removed.
(6) Remove inner grease seal and discard. Use
Installer 5064 and Handle C-4171 to drive grease
seal and inner axle bearing from the hub.
(7) Remove the bearing cups from the hub bore.
Use a brass drift, or an appropriate removal tool, to
tap out the cups.
INSTALLATION
(1) Thoroughly clean both axle bearings and interior
of the hub with an appropriate cleaning solvent.
(2) Install the bearing cups. Use Installer 8153
and Handle C-4171 to install the bearing cups.
(3) Apply lubricant to surface area of the bearing
cup.
(4) Install the inner axle bearing in the hub.
(5) Install a new bearing grease seal. Use Installer
8152 and Handle C-4171 to install the grease seal.
(6) Inspect the bearing and seal contact surfaces
on the axle tube spindle for burrs and/or roughness.
Remove all the rough contact surfaces from the axle
spindle. Apply a coating of multi-purpose NLGI,
grade 2, EP-type lubricant to the axle.
CAUTION: Use care to prevent the bearing grease
seal from contacting the axle tube spindle threads
during installation. Otherwise, the seal could be
damaged.
(7) Carefully slide the hub onto the axle.
(8) Install the outer axle bearing.
(9) Install the hub bearing adjustment nut. Use
Socket DD-1241–JD to install the adjustment nut.
(10) Tighten the adjustment nut to 163-190 N·m
(120-140 ft. lbs.) while rotating the wheel.
(11) Loosen the adjustment nut 1/8 of-a-turn to
provide 0.001-inch to 0.010-inch wheel bearing end
play.
(12) Tap the locking wedge into the spindle keyway
and adjustment nut. Try to ensure that the locking
wedge is installed into a new position in the
adjustment nut.
(13) Install the axle shaft.
(14) Install the brake drum.
(15) Install the wheel and tire assembly.
#3
07-20-2006, 12:04 PM
RE: '99 2500 rear axle oil seal help?!!!!!
Thanks Fiveliterbtr, but the procedure you sent is for the wheel bearings and hub grease seals.....NOT the axle shaft oil seal. My Clymer manual had that one too, but not one for the oil seal. The oil seal is at the far end of the axle housing tube (near the gearcase), not in the hub. Got any procedures for that??
#4
07-20-2006, 12:33 PM
RE: '99 2500 rear axle oil seal help?!!!!!
If there was a seal near the gearcase, axle fluid would not be able to travel thru the axle and lubricate the hub bearings...the only seal I'm aware of is the seal in the hub...it's the only seal I've ever changed due to leakage on these floating rear axles.
You did say the rear was leaking...if it was the front, that's a different story as, from what you're describing about the "blow-up" pic, the frt. ones are replaced from inside the gearcase after removing the gears.
You did say the rear was leaking...if it was the front, that's a different story as, from what you're describing about the "blow-up" pic, the frt. ones are replaced from inside the gearcase after removing the gears.
#5
07-20-2006, 02:10 PM
RE: '99 2500 rear axle oil seal help?!!!!!
I go with Five on the rear axle seal. Did mine when I put in GM brake cylinders. The only seal I know of is at the out hub for the rear axle. Like Five said, there would be no way for the lube to travel down the axle tube to the hub if there was an inner seal. The front axle have the seal near the differential. Fairly easy job with the right tool.
