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Hi I am new at this so here goes. I have an 06 TB 4WD and I want to tow a travel trailer weighing 4300 lbs dry, approx 4800 to 5000 wet. What I can't find is any specification on the TB as to what is the engine size, axle ratio so I can compare it to what is in the owner's manual, The only information I can find is a label on the air breather area of the engine that states "Vortex 4200". My question is; Is my vehicle big enough to pull this trailer.
 

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2003 gmc envoy_slt
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:tiphat Welcome :tiphat . That is the I6 4.2 ltr. engine. Look in your glove box for the axle ratio. GU6=3.42, GT4=3.73, and GT5=4.10 Also look for a G80, that is the locking differential.
 

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2005 gmc envoy_sle_xl
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welcome to the site :tiphat
also in the glove box there will be codes for your tow rating as follows;
C4D-5550 , C5N-5750 , C5Q-6300 , C7H-6400 , JT1-6125 , JT3-6375
per gm recomemdations as max allowable tow capacity by vehicle
there will be one of those codes hope that helps
 
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