Stupid question But.....

[nate8887]

I cant find any info on this did all of the duramax trucks come with allison's or did some come with the 4l85? Help please google is not being friendly.

 

[Lucky Jeff]

Never heard of that, and I doubt they ever did because of the weight ratings. 4L80's came behind the dmax in the vans though. And even then they didn't last very well.

 

[nate8887]

Alright yeah somebody told me my truck had the 4l85 because it wasnt badged with the allison and I never really thought about it until he said that.

 

[zukkev]

Since the pickups came out w/dmax's in 01, their other big selling point was the Allison---not that they didn't have their issues early on eother, but....

 

[Lucky Jeff]

Alright yeah somebody told me my truck had the 4l85 because it wasnt badged with the allison and I never really thought about it until he said that.

External oil filter? Doubt the 4L has that...

 

[nate8887]

External oil filter? Doubt the 4L has that...

Ill check it out

 

[84Toyota4x4]

In addition to the external filter, I know the 04s have "Allison" stamped in the trans pan bottom, probably others too. Should be fairly simple to figure out, haha.

~T.J.

 

[Jenks]

I've never heard of any of the trucks having anything but an Allison.