transmission help

Reply Subscribe

Thread Tools

Search this Thread

Jun 7, 2016 | 10:31 PM

Sierra6.0

Thread Starter

Teching In

Joined: Jun 2016

Posts: 10

Likes: 0

From: west texas area lubbock and fort worth area

transmission help

having trouble identifying the transmission ,and its because it was swapped with a lq4 infront of it. okay so this tranny i cant seem to find a 4l60 or 4l80 stamp on it or anything idk what it is to be honest i tried to go off the shape of the oil pan and still cant find one that matches thus far. the numbers i found were a big 94 on both sides and ''GMPT" was also on the side just need some help identifying it if anyone can help.

Jun 7, 2016 | 10:35 PM

Sierra6.0

Thread Starter

Teching In

Joined: Jun 2016

Posts: 10

Likes: 0

From: west texas area lubbock and fort worth area

cont

thought id mention that the bell housing looks removeable

Jun 7, 2016 | 10:48 PM

clinebarger

TECH Fanatic

Joined: Jan 2015

Posts: 1,114

Likes: 33

From: Fort Worth, Texas

4l60e

Jun 7, 2016 | 11:45 PM

Sierra6.0

Thread Starter

Teching In

Joined: Jun 2016

Posts: 10

Likes: 0

From: west texas area lubbock and fort worth area

Quote:

Originally Posted by clinebarger

4l60e

my thing is that it was supposed to have a 6 speed supposely so the best way that i tested that was to basically cruise it all the way to 75 and it shifted though 5 gears getting there from my best interpretation listening to its shift points , ive had pretty knowledgeable passengers with me doing the same on different occasions and still shifted through 5 gears to 75 ... ive replaced a 4l60e in my 2002 z71 and both trannys were clear as day stamped 4l60e on the side