91 2500 4x4 pickups with 6 lugs had 4L80E? or 4L60?

[gm guy]

91 2500 4x4 pickups with 6 lugs had 4L80E? or 4L60?

I am looking at driving a few hours to look at this truck and need to know what trans it should have.

Is the 4L60 (late 700r4) any good or should I hold out for a 4L80E truck if this one is not?

 

[RudyO]

Have a 90 3/4t- had to run the VIN throught the dealership....

 

[sweetk30]

4l60 tranny = 6 lug

4l80-e tranny = 8 lug

95% of the time.

 

[AJMBLAZER]

6 in tranny = 6 lug

8 in tranny = 8 lug

95% of the time.

Huh?

 

[sweetk30]

edited it for the simple minds to get it. sorry

 

[dyeager535]

Easiest way is to simply have the trans code looked up on the RPO tag in the glove box. Trans codes were "Mxx" although I don't know what the code is of those two.

 

[sweetk30]

look under it and 4 bolt tail on tranny is th350/700r4/4l60 and 6 bolt tail is th400/4l80-e/and 96-later model 4l65-e new stuff.

 

[4X4HIGH]

look under it and 4 bolt tail on tranny is th350/700r4/4l60 and 6 bolt tail is th400/4l80-e/and 96-later model 4l65-e new stuff.

The 4L60E only had 4 bolts on the tail housing as well until 1996 then they became a 6 bolt housing mid year 1996 so either could have been had in 1996 but prior to that they were all 4 bolt housing.