Join Date: Dec 2009
Location: Colorado Springs
Thanked 52 Times in 27 Posts
iTrader Score: 0 reviews
If it has run any tuner, it will need a trans. I roasted my 48RE in 10k with a slight tune, city driving. But, $3500 for a built trans and it is way better than stock. It makes a big difference, well worth it. I've towed a 26' loaded toy hauler 10-12k coast to coast and would not hesitate to do it again at 208,000 miles. Bad hubs happen but they are not hard to do if you follow the tutorials on here. Get an EGT gauge at a minimum.
I have 3.73 in mine. I get damn good mileage but it all depends on your driving. On a country road at 55 mph empty, I have gotten 21 hand calculated. The Oem digital gauge is always way off so you must hand calculate. On the highway, the key to great mileage is all in the tach. 1800-1850 is usually the sweet spot. (About 70 mph) I get about 16-18 empty. Usually 11-12 with a trailer. Above that, it drops off pretty quick. If I roll along at 75 to 80, it usually gets around 14 or 15 mostly empty (ATV in back) In the mountains, it can drop pretty low but it pulls like a beast so I don't mind. You can drop to 6 to 8 if you are passing...etc.
2005 2500, GDP intake horn, Air Boss plenum, AFE exhaust manifold, SMARTY Pod, Thuren Fox 2.0, TRE built transmission, Billet Output, Cool Tube, Aero 4040XL, Edge Insight, 08+ steering upgrade/Thuren stabilizer. Carli Ball Joints.
Last edited by madstuka; 02-17-2020 at 11:18 PM.