HvyDuty
Senior Member
Great report... thanks!
The longer I own my 6.4 the more comfortable I get with it. I'm towing an 11K 5th wheel with the non-towing-friendly 3.73 gears and am surviving. It's funny because as time has gone on and the trucks improved so much, we all feel like if we're not screaming up 7% grades with huge trailers @ 70mph that there is something wrong with our truck (I'm as guilty as anyone with this expectation).
The reality is the 6.4 is a GREAT engine, the tranny is marginal and the overall experience is 20X better than anything 20 years ago.
Can you post some pics of your rig? We are looking to upgrade to a 5er soon. Thanks