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Old 04-12-2004, 07:14 PM   #1
Jeepster376
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Filling Transfer case

I want to change the oil in my transfer case to synthetic. (72 K10) There are two square drive plugs on the back of the case one near the bottom, and one about halfway up. Looks like a fill hole and drain hole. Correct? But I removed the upper plug and oil came pouring out, so I put it back in. Is my case overfilled? or is there another location to fill from? What is the proper level?
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Old 04-12-2004, 07:49 PM   #2
JIMs70GMC
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Was it gear oil or gear and tranny fluid? If only gear oil then somebody probably filled it with the rear end in the air. On level ground you fill it at the halfway plug until it starts coming out, then put the plug back in.
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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 04-12-2004, 08:00 PM   #3
Jeepster376
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Could the TH350 trans be leaking fluid into the tranfer case?
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