2003 Avalache
We just bought a 2003 Chevy Avalanche 2500 8.1L - Do not now the gear ratio.. Standard Towing -10200 lbs Standard Payload -2146 lbs Standard GVWR - 8600 lbs Cargo is 2 adults(350lb, 2 dogs(130lb...
Forum Discussion
Hi There.
Your 2003 Chevy Avalanche 2500 is a pretty rare truck. Not very many 2003- 2500s out there. (I have the other one) :0)
You have a 4:10 rear end so your mileage isn't going to get much better than 10.5 which is what we average with nearly the same numbers on the interstate at 60 mph.
Awesome truck- we love ours and are getting ready to make a Michigan to Texas run this fall.
Edwardavion- Lake Ann Michigan.
Your 2003 Chevy Avalanche 2500 is a pretty rare truck. Not very many 2003- 2500s out there. (I have the other one) :0)
You have a 4:10 rear end so your mileage isn't going to get much better than 10.5 which is what we average with nearly the same numbers on the interstate at 60 mph.
Awesome truck- we love ours and are getting ready to make a Michigan to Texas run this fall.
Edwardavion- Lake Ann Michigan.
