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What Automatic Transmissions were used in 1989 Chevy Suburbans?

1989 Chevrolet Suburbans used a few different automatic transmissions, depending on the engine and options selected. The most common were:

* TH700-R4: This was a 3-speed automatic transmission, likely found in models with smaller V8 engines.

* 4L60: This was a 4-speed automatic transmission, likely used in models with larger V8 engines. This was a newer design for the time compared to the TH700-R4.

To know for certain which transmission was in a *specific* 1989 Suburban, you'd need to check the vehicle's build sheet (if available), the VIN number (through a decoder), or look at the transmission itself (although this requires some mechanical knowledge).