gmc454crew
New member
I recently bought the above with 122,000 miles to tow a 33 foot fifth wheel travel trailer. It does that job, but I feel it could do a better job. Anyone have any suggestions on what I could do to improve towing torque for a reasonable, under 1k, price. If this also helped mpg, that would be nice too. 
I'm a shade tree mechanic, but recently got brave when cleaning the lifters on a 2002 GMC I used to have, and have built up some confidence.
I'm a shade tree mechanic, but recently got brave when cleaning the lifters on a 2002 GMC I used to have, and have built up some confidence.