D d61562 Joined Oct 27, 2011 Messages 6 Location wv Oct 27, 2011 #1 what type of fluid do i use in my 1988 gmc k1500 5-speed manual transmission and transfer case?
Boomer Joined Sep 19, 2008 Messages 2,970 Location Pennsylvania Oct 27, 2011 #2 If I remeber, my 1988 1500 with the Getrag 5 speed took ATF.
D d61562 Thread starter Joined Oct 27, 2011 Messages 6 Location wv Oct 27, 2011 #3 thats what i thought but a few people have told me i have to use a special gm fluid
D d61562 Thread starter Joined Oct 27, 2011 Messages 6 Location wv Oct 27, 2011 #4 if anyone knows for sure please let me know i just bought this truck and i want to change fluids
N NHGUY Joined Oct 9, 2011 Messages 5,090 Location USA Oct 27, 2011 #5 Look it up at www.amsoil.com They have a fluid recommendation for each vehicle.
J Jaybird79 Joined Nov 1, 2010 Messages 7 Location Illinois Oct 28, 2011 #6 My 1998 k1500 calls for dex III in the transfer case, I think they used the same t-case during that time span. I changed mine out last fall so far no problems. Sorry cant help you on the tranny I have an auto.
My 1998 k1500 calls for dex III in the transfer case, I think they used the same t-case during that time span. I changed mine out last fall so far no problems. Sorry cant help you on the tranny I have an auto.
C cchase Joined Nov 3, 2009 Messages 4,021 Location New England Oct 28, 2011 #7 Originally Posted By: d61562 thats what i thought but a few people have told me i have to use a special gm fluid Special fluid is usually with the Autotrac units (with Auto 4WD option) which I don't think was available in 1988.
Originally Posted By: d61562 thats what i thought but a few people have told me i have to use a special gm fluid Special fluid is usually with the Autotrac units (with Auto 4WD option) which I don't think was available in 1988.