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D30 passenger seal leak.

D30 passenger seal leak.

Dan77CJ7

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Denver,303Local
Vehicle(s)
76' CJ-7 4.2L/T-18/d20 d30sua/amc20soa M/T MTZp3 35/12.50/15s mc2100
Here's a pick of my leak. from what i can tell i need an axle shaft seal the one on the thrust washer?? or maybe inner seal? im not really sure? i dont like to tear apart my CJ untell i have a tight grasp. please any pictures or help would be much appreciated. I have FSM but it bounces around on the subject.
 
The only thing I can provide is this (no practical experience in this parts so far):

19641876ga.webp

The only seal is in the red circle (front axle shaft inner oil seal).

Should be part no. 812 1781
 
Inner Axle seal.
812 1781
Must remove axles & carrier, knock out seals and use installer to install seals.
If no installer, can use long bar and something the size of seal, and hammer seal in from other side.
 
^^ what he said ^^
I use a long 1/2" drive extension and a big socket.
Now would be a good time to change the spindle bearings and seals also.
 
thanks guys, that's pretty much what i needed to hear,

To do list:

Pinion seal
inner axle seals
spindle bearings
wheel bearing
180 t-stat
valve cover gasket using Form-A :drool:

what about the thrust washer and the seal it shows? in MY FSM i shows a pic.
 
Yes would also change that seal, and anything else I could while I had it all apart.
 
Yes get the 4 piece spindle set, bearing, seal, washer & seal. And check all mating surfaces for seal wear, and wheel bearing & hubs.
 
1/2" dia. pipe and a lg washer works well for Dana 30 axle seal install.
LG
 
Old dog you make a good point, Thinking that the shafts could use a rebuild. spicers? 5-260x? or does anyone know of a better U-joint? :chug:
 
You can get some CTR rebuildable.
 
**CHEAP LOCKER**


What do you guys thing about the aussie locker? Im going to assume when i pop the diff, a spring from the quick lock should end up in the catch pan.. I need this Dana 30 rebuild to hold me over untell I hunt down the right T-18a....:mad:
 
Designed by Bill Cole who also made the Chevy Small Block.
All I have heard is good things about it so far, but time will tell.
Not a rebuild a reseal.
 
Not a rebuild a reseal.

Axle and caliper are being rebuilt... new wheeling bearing,spindle bearing, synergy ball joints new locker(undecided) along with all the seals.... this friend is rebuild in my parts. :cool:

Also thinking about hubs.. I have cutlus hubs now, and they work perfect, and i like the vintage look.:chug:
 
Not a rebuild a reseal.

Axle and caliper are being rebuilt... new wheeling bearing,spindle bearings, synergy ball joints new locker(undecided) along with all the seals.... this here friend is rebuild in my parts. :cool:

Also thinking about hubs.. I have cutlus hubs(maybe stock???) , and they work perfect, but I havent found any parts or prints on them.
 
Sure like my Mile Marker hubs with run'n a DL up front.
LG
 
Sure like my Mile Marker hubs with run'n a DL up front.
LG

If i could get a No-spin i would LG, But i dont see my self getting Crmo Axles and i hate to bust U-joints, Not that im saying you need Crmo axles, they tend to flex less at the eyelets. "A broken U-joint trail story...." Reason number 4 why I'll only roll on 32s
 
Nice,
Stock was a drive flange or Warn. Cutlass is real strong, and easy to turn in & out.
 

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