1/2 tons w/ 4L60E

[buddy]

Does anyone have the info on which 6.5TD trucks had the 4L60E stock?

My 94 1500 built in 93 came with a 4L80E, but maybe it was added as an option, and part of the "2500HD towing package" the original sticker says

I'm thinking the ECMs would have to be a little different to control the two different trannys, but none of my ECM/EPROM info has anything about any 6.5TD trucks with the Transmission RPO code of M30 for the 4L60E. All of them say MT1 for 4L80E, except some L49 N/A 6.5s.

Thanks for shedding any light on it

I'm also trying to figure out why there was a distinction for L56 94 ECM EPROM codes from pre Jan 94 (built in 93) and post Jan 94. I was thinking maybe thats when they swapped to the 4L80E, but cant find any info on it. Both seem to have the 5067 IP identified which is 5521 compatable

 

[Turbine Doc]

IIRC all 6.5 were 4L80E, my K1500 is, I think 4L60 was trans for the 6.2s

 

[Acesneights1]

Yeah IIRC the 4l60 AKA TH700 only came with 6.2s. They were junk anyway. Escpecially the earlier ones. I puked many of them. I put a modded TH400 in my 83. Got a TH400 from a 2wd and had tranny shop swap in a 4x4 tail and output shaft.

 

[buddy]

OK, thats good, although gmctd has stated a few times that the 94 1500s had 4L60E, and one time I googled it and found some online sales that said 4L60E on a 6.5TD, but they were probably just wrong.

 

[THEFERMANATOR]

OK, thats good, although gmctd has stated a few times that the 94 1500s had 4L60E, and one time I googled it and found some online sales that said 4L60E on a 6.5TD, but they were probably just wrong.

The 92-93 C1500's had the option for a non turbo 6.5, and it was backed up by the 4L60 in 92 and the 4L60E in 93. The 3/4 tons and bigger from 91 on even behind the 6.2's almost always had a 4L80E.