Trucks & Trailers - VIN number for GM/Chevy Transmission

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ninetoes
03-07-2011, 06:12 PM
I am looking for a GMC or Chevy 2500 as well as a F250 V10. I am learning that a V10 is not the easiest thing to find (see my other post). I am having a hard time telling which transmission is in the GM 2500. I am assuming the 2500s are like my 1500. If so what first three VIN numbers indicate the 4.1 rearend and can I tell if it has the L60E (might have the wrong letters) or the other transmission?

I am looking for a gaser so I know they dont have the Allison. Just wondering about the other transmissions.


centuarynick
03-07-2011, 08:51 PM
4l80e is the heavier duty 4 speed slush box in the 2500 gasser

look in the glove box for the (option code sticker) for axle ratios and what not

billinstuart
03-08-2011, 05:42 AM
I've gotta 6L90E in my gas 2500HD.


yarcraft91
03-08-2011, 09:35 AM
These codes are for the Suburban, but they may cross to the pickups as well.

The 4L60E has two different codes- M30 and M32 (HD version). The 4L80E also has two codes, MT1 and MN8 (8.1L V8 version).

The 4.1 axle code is GT5, GT4 is 3.73, GU6 is 3.42. G80- Positraction limited slip, G82- limited slip.

WolfLLY
03-08-2011, 02:27 PM
I am looking for a GMC or Chevy 2500 as well as a F250 V10. I am learning that a V10 is not the easiest thing to find (see my other post). I am having a hard time telling which transmission is in the GM 2500. I am assuming the 2500s are like my 1500. If so what first three VIN numbers indicate the 4.1 rearend and can I tell if it has the L60E (might have the wrong letters) or the other transmission?

I am looking for a gaser so I know they dont have the Allison. Just wondering about the other transmissions.

The 8.1L engine came with the Allison. Have to step up to a 2500HD, though.

Jonboater
03-08-2011, 05:46 PM
Most of the 4-speed 6.0 1500HD and 2500 have the 3.73, the 2500HD and 3500 will be 4.10.

I haven't kept up with the newer 6-speed trucks.

demjjm
03-08-2011, 06:16 PM
I was recently shopping for a used late model truck, before I got tired of the used truck market and decided to go new. A lot of used trucks will list the VIN, and running them through the decoder listed below gave me a ton of information on each truck for example 4x4, axle ratios, transmissions, and other important options. I found it very useful, especially when I was trying to find the gm 6.0 gasser in 4.10 axle ratio. It also was useful for fords, since I was trying to avoid the 6.0 diesel.

http://www.compnine.com/vid.php



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