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Old 10-19-2016, 06:54 PM   #1
Redphish
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Join Date: Sep 2016
Location: Falfurrias, Texas
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Leaky Muncie sm465

New guy here!
Had my 465 rebuilt in San Antonio a few months back and didn't stab it to the 292 in my 76' K15 till recently.... pour in the gear oil to the edge of the filler hole and sure as sh&t ... the oil starts running out the front of the tranny. It looks like the main shaft cover but I can't be sure... I plan on dropping the beast (with the NP 205) and before I have to haul it 250 miles back to SA maybe I can find and fix the problem.. any souls out there experience anything like this?
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Old 10-19-2016, 07:25 PM   #2
JIMs70GMC
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Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
Re: Leaky Muncie sm465

I have that tranny in my 70 and K5, never had one leak like that. Their is a seal and gasket under the mainshaft cover. There is a gasket under the counter shaft cover. Both are on the front.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs
1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX
1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears
1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now.....
1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone.
1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed.

1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm
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Old 10-20-2016, 05:41 PM   #3
Redphish
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Re: Leaky Muncie sm465

Thanks Jims
I ment the counter shaft cover... can't believe they would have left a gasket out. Hopefully drop it this weekend.
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