Rear Main Seal
 

'96 Chevy, 350.

Can this be replaced without removing the engine or transmission ?

Thx

RE: Rear Main Seal
 

no

RE: Rear Main Seal
 

nope...pull the tranny

RE: Rear Main Seal
 

Well, its getting from bad to worse, now getting low oil pressure at idle, so guess the bearings are shot.I suspect the failed intake gasket a had change a while back didnt help the situation. Its a shame..130K miles on the truck and everything else is in good shape.

RE: Rear Main Seal
 

Low oil pressure on a guage or dash light?
If it's a dash light you may have been running low pressure for a while, time for a rebuild.
Silly question, did you check the oil level?

RE: Rear Main Seal
 

if somebody used abrasive discs to clean the heads on your intake job....the abrasive dust clogged your oil pickup tube....i'd ask questions

RE: Rear Main Seal
 

Yeah, oil level is good. Funny thing, ever since the intake job (about 6 months ago), the pressure was higher than before the intake job. At idle prior to intake job, was running about 40 psi at idle, after intake job, close to 60.
I will say this...when the intake failed, there was considerable water in oil, so maybe i've just been lucky so far.
At any rate, i'm gonna drop the pan to take a peek. From the looks of it, I wont have to jack up the engine to remove the pan

RE: Rear Main Seal
 

Whatever you do DONT give up on the truck. Those motors are a dime a dozen here in washington and I'm sure everywhere eles. At the Pull A Part here, if you find a goodmotor and pull it yourself it's only 100 bucks.

RE: Rear Main Seal
 

Well, gents...after further review...I got lucky. Finally got a chance to crawl under the truck. Seal OK....Turned out the Oil pressure sending unit was the culprit. Leaking like a big dog, which would also explain the irratic oil pressure. $26 bucks and some cussing (due to the location and pain in the a$$ to get to) we're all good now.

RE: Rear Main Seal
 

Excellent....sending unit never crossed my mind.