The GMC auto company made many of their parts interchangeable. So depending on the parts you need there are parts from 1988-1995 can be used in vehicle models from those same years.
Engine and engine parts: 1988 to 1995 Body parts : 1988 to 1999
1988 to 1998
1988 through 1999 parts are the same, Give are take a few things.
I found the answer out by myself and it is compatible with both the 4 cyl and 6 cyl. Both are 4x4 and 5 speeds.
1988 to 1999 are the same.
DEXTRON II fluid.
It's on the side of the motor
1988 through 1999
The 88 year transmission will not work in the 99 because of the computer in the 99. You need a 4L60E from the year 1993 to 1995 and then it goes to 1998 to 1999. 1996 and 1997 transmissions will not work. Now if your 99 is the NEW BODY DESIGN truck then you can use these year 4L60E transmissions. From LATE MONTH 1999 to 2006 will work.
NO. 1988 is when chevy changed everything.
No. you can not get the parts to do that.
YES. Almost everything will interchange.