What gears should a 1991 W250 have with the 727 auto? They only used the 3.07's in the 2wd, right?

 

3.07's were used with all 3-speed auto trucks, 2x4 and 4x4.

 

Dang, not sure If id want the truck im looking at, 307's are a little high...

 

They're actually great gears for all but the heaviest towing applications. Problem is, they're a non-ic dodge-only axle, so it's tough to come by parts for them. Coupla guys are running them with the five speed and are turning like 1600 at 75 with stock tires and getting great mileage. I'd switch if I had the chance.

 

Hmm, i wonder how they would drive with 35's? I bet with stock tire it would be awesome with a five speed. Im looking at a beat up 91 nonic, its probably best for parts at most.

 

I think they would be fine with the 35's. The engine in your sig likely doesn't lack for the low end torque to overcome the gearing 'dis-advantage' 235-85's are only a couple inches shorter. Other thing is, the axles are prolly worth what you're going to give for the truck, so if you don't like 'em, you'll be $$ ahead by the time you sell the axles and other parts from the rig.

 

Personal best of 27.7mpg mixed driving. that good enough?

I should have my intercooler done by next weekend and take it on a trip then....hoping to break 30 easily.

 

There ya go, couldn't remember who was running them, despite the huge red font in your sig

 

I love my 307 gears. I think 23.5mpg was my best on #2. Its probally one of the only vehicles that I have driven that doesn;t feel rung out at hwy speeds. 1750rpm @ 72mph. I'm tempted to buy a 2wd and put a 307 with a 5spd in it and see what kind of mileage I can get.