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What transmission does a 1999 Chevy 1500 4X4 have in it?

A 1999 Chevy Silverado 1500 4x4 could have several different transmissions depending on the engine and options selected. The most common were:

* 4L60E: This 4-speed automatic was very common.

* 4L80E: A heavier-duty 4-speed automatic, more likely found with larger engines or higher towing packages.

To know for certain which transmission is in *your* specific truck, you need to check one of the following:

* The vehicle's build sheet (if you have it): This will list the transmission.

* The sticker on the driver's side doorjamb: It may contain a RPO (Regular Production Option) code indicating the transmission.

* The transmission itself: The transmission case usually has a casting number that can be cross-referenced.

* Your vehicle's title or registration: Sometimes the transmission is listed.

Without this information, it's impossible to definitively say which transmission your truck has.