it has a 4L60-E
They are the same.
4L60 or 4L60E
The 1991 GMC Sierra typically came with the 4L60 transmission, which is a non-electronic version. The 4L60E, an electronically controlled version, was introduced in 1993. Therefore, if your 1991 model has the standard automatic transmission, it is most likely the 4L60.
4l60, 4l60e ,700r4
The 4L60E is electronic. It has NO module
a 1988 tranny should be the 700r4 aka 4l60 it's sometimes referred to.. a transmission in a 1997 should be the 4l60e which is an electronic transmission so no. lol
NO it is an automatic gear drivin transmission that has alot og common failures
The PTCM / Power train control module / computer is set up for the 4L60E transmission and that is what you will have to put back in. SORRY
Yes. Note that this will be a mechanical 4L60, not the electronic 4L60E, which was introduced in 1993.
The Chevy 4L60 and 4L60E are similar transmissions, but they are not directly interchangeable due to key differences. The 4L60 is a non-electronic version, while the 4L60E features electronic controls and a different wiring harness. If you want to swap them, you would need to address these differences, including modifications to the transmission control systems and possibly the vehicle's computer.
4l60
Possibly... GM started using the 4L60E in 1993, but the 1993 model year went into production before the 4L60E, so some 93s still have the mechanical 4L60 (itself just a rebadged 700R4).