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Originally Posted by Mag_Red
Ric my Silverado has the 4.8L and a 3.73. I have absolutely no problems towing with it. As long as you keep the engine in the 2500-3000 RMP range...it will pull like a r@ped Ape 
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yep, that's why I'm wondering why no 3.73 is available on 5.3L hmmmmm

oh well I guess in march when I get my prostar I will tow it to the chevy dealer and hook it to a 3.42 5.3L and give it a test drive
