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What is the transmission in 1994 gmc 4x4 3500 with a 7.4 v8?

A 1994 GMC 3500 4x4 with a 7.4L V8 could have a few different transmissions, depending on the specific options chosen when the truck was built. The most common would be either a:

* 4L80E: This is a four-speed automatic overdrive transmission. This was the most likely option.

* SM465: A five-speed manual transmission was less common but possible.

To know for certain which transmission is in *your* specific truck, you'll need to:

* Check the vehicle's documentation: The owner's manual or build sheet (if you have it) will specify the transmission type.

* Look at the transmission itself: You can find a tag on the transmission case that usually indicates the model number.

* Check the VIN: A knowledgeable mechanic or parts dealer can often determine the transmission type based on the vehicle identification number (VIN).

Without access to one of these sources, it's impossible to say definitively.