RMS and transmission question

UglyDuck

UglyDuck

TJ Enthusiast
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Joined
Dec 10, 2021
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404
Location
Goodyear AZ
Ok so I’m curious about the transmission / rear main seal relationship. I’ve read that the trans does not need to be out to the RMS, but if it is out; let’s say for a clutch job, does that make it any easier or have other benefit for the RMS replacement?
 
UglyDuck said:
Ok so I’m curious about the transmission / rear main seal relationship. I’ve read that the trans does not need to be out to the RMS, but if it is out; let’s say for a clutch job, does that make it any easier or have other benefit for the RMS replacement?
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Just makes it easier. It clears up some room to work.
 
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If your RMS seal is leaking, first try this... switch your engine oil to a High Mileage conventional 10W-30. NAPA is a good source. Some synthetic engine oils can strip the natural sealant qualities out of a RMS and cause it to leak. A high mileage engine oil contains seal conditioners that can restore the seal so it's leak free again.
 
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Jerry Bransford said:
If your RMS seal is leaking, first try this... switch your engine oil to a High Mileage conventional 10W-30. NAPA is a good source. Some synthetic engine oils can strip the natural sealant qualities out of a RMS and cause it to leak. A high mileage engine oil contains seal conditioners that can restore the seal so it's leak free again.
Click to expand...

I switched to this immediately when I bought the jeep. Also replaced the VCG a while back to eliminate that leak. Still leaves quite a puddle when parked long enough.
 
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