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Old 02-01-2004, 06:28 PM   #1
bad71gmc
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1991 Suburban Transfer case question

I have a 1991 Suburban and was wondering what type of fluid the transfer case uses.
It look like it is ATF fluid, Is that right??
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Old 02-01-2004, 08:37 PM   #2
Grim Reaper
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ATF

91 ran a NP241 I beileve and there is a SYE available for it.
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Old 02-14-2004, 09:03 AM   #3
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Grim Reaper,
What exactly is a SYE that you were refering to??
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Old 02-18-2004, 03:16 PM   #4
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Alot of rebuilders recomend using 5W30 full synthetic engine oil in the Tcase. It came with Dextron III from GM.

Keith
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Old 02-19-2004, 11:07 AM   #5
Grim Reaper
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Quote:
Originally posted by bad71gmc
Grim Reaper,
What exactly is a SYE that you were refering to??
Thanks
Slip Yoke Eliminator.

Most hard core 4x4 ers want fixed yokes so that it you pretzle a drive shaft the fluid doesn come out. Also slip yokes only have some much travel. With a fixed yoked you can get a long spline drive shaft that wil alow for up to 24 inches of change. Also with a fixed yoke you can run a large CV joint to dealwith any angle issues from lifts.
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