How can I tell what automatic transmission my GMC Sierra Ext. Cab 1500 5.0L Vortec has in it?


Asked by Mar 06, 2017 at 03:09 PM about the 1998 GMC Sierra 1500 C1500 SLE Extended Cab LB

Question type: General

I need to know the transmission model in my GMC Sierra Extended Cab 1500
long bed 5.0L Vortec has in it so I know the filter and fluid capacity to change

2 Answers


Punch in your VIN: , scroll to "TECH SPECS" and look up pertinent info.


This didn't tell me how to find out what transmission is in my truck. It just gave the different options available.

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