Lubricants for axles & the Getrag.

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This is always a hot one, but here goes. What recommendations can anyone make for gear lube for are year trucks? I would like to put the best stuff in both of my rigs for longevity. Will synthetic work or will it destroy the G-360 commie crash box? What about the dana's T-case?

Thanks guys

Russell

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1992 W-350 Club Cab Dually (All quiet for now)
1992 W-350 8' contractors dump with 3. 5" exhaust(don't ask)

 

[Archive]

I've been running Valvoline synthetic 5W-30 in the Getrag since I purchased my 89 (over five years ago). I don't know why everyone is ragg'in on the Getrag. Yea, I know it is a clunky transmission when it's cold, and you cant row through the gears like a Toyota, but I have had zero transmission problems on both trucks. As for the Dana 70 rear, I've run regular mineral base 90W gear oil, and have not had any problems with that either. If you have a limited slip rear differential, it is recommended to add a bottle or two of the additive for the clutch plates, otherwise you may get a little rear end chatter when cutting the wheel sharply.

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89 D-250 LE 5 speed 3. 55 Limited slip, K&N, straight piped, Boost/Pyro. & 16cm2 215K and still going. 91 W-250 5 speed, 4. 10 Limited slip, 16cm2, 6" Skyjacker lift, RS9000, Dump bed, 18K original mi.

 

[Archive]

Will Synthetics destroy... ???
NO, they will not. You will get the same benefits everyone else does, lower temps, better mileage, easy cold weather starts, longer drains, if you wish,
And better wear protection. Try the search feature, you will find hundreds of posts on oil!
Gene

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1997 Cummins Dodge 4x4 Bombed & Amsoiled. Amsoil Premiere Direct Jobber, Member of: NRA Business Alliance, GLTDR, WANTED: Wrecked Dodges.
www.awdist.com