Question about 1999 Chevrolet Silverado 1500
If it has TH400 Transmission, its mounted L/H rear just above pan.
Looks about 2" Dia with hose in centre.
Posted on Aug 02, 2008
If you are asking will the transmission will bolt up to your engine the short answer is yes however you may have to modifly the transmission depending on a number of factors the transmission in your 93 could be the electronic shift the one in the 89 might be manuel **** but you can check that out before you put it in.
Posted on Mar 19, 2009
If its a THM400 the valve should be in the side just above the pan. It would have a vac hose going to it.
If its not a 400 it probably does not use a modulator valve but rather a solenoid inside the transmission.
Posted on Sep 21, 2012
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