The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - MPG difference between th-350 and 700r4?

**crossy** · 12-01-2004, 11:42 AM

i've owned lots of these trucks and i've also driven through, 'wide open' Mississippi , but i pretty much agree with everyone else's comments. your truck most likely has 2.73's in it now. and unless your driving the stretch of interstate that i did and running 85+ plus like everyone else was then it will only make a negative 1-2 MPG at MOST. you will loose a little umph out of the hole though as the 700 has a real low first gear that helps with those salt flat gears. DAVE

12-01-2004, 11:42 AM	#16
crossy Oh,you can't buy that new Join Date: Apr 2000 Location: Pennsville,N.J. 08070, USA Posts: 2,039	i've owned lots of these trucks and i've also driven through, 'wide open' Mississippi , but i pretty much agree with everyone else's comments. your truck most likely has 2.73's in it now. and unless your driving the stretch of interstate that i did and running 85+ plus like everyone else was then it will only make a negative 1-2 MPG at MOST. you will loose a little umph out of the hole though as the 700 has a real low first gear that helps with those salt flat gears. DAVE __________________ "been there, done that, ruined the T-shirt". 2007 LBZ GMC Sierra, ECSB 2006 LM7 RCSB Silverado 98 Vortec project. 94,3500,6.5L 4L80 81 SWB GMC POS finally gone 73 Pinto, stock, w/CragarSS's-eww LOTS of Cummins trucks.