99 PSD dually

[eight]

I'd put a chip in it. It's a 7.3, they like chips. Haven't found any that will actually give better mileage though. 255/85/16 BFG MTs will fit fine. We ran into some trouble with a different brand of the same size of tires on my dad's old dually, they were a little wider and would rub sometimes. 15.5 would be pretty good mileage for that truck, but not really more than you can expect. My dad should have a programmer to sell. I think he's got 2 and soon to have only one 7.3 truck. I think he'd be selling the hypertech one, 60hp.

One thing you need to do on those 6 speed trucks:
There are little plastic bushings in the clutch linkage, replace them. You have to get them at the dealer but they're a couple bucks each. I think the main reason of the transmission ever giving problems is because the bushings are worn out and damage the gears. I had a 94 with a bad transmission because of this and my dad's 99 has troubles from the same cause.

Straight pipe on those trucks isn't very loud. The turbo knocks out most of the noise. It's only really loud if you go to a larger diameter.

[BroncoJo]

I'd put a chip in it. It's a 7.3, they like chips. Haven't found any that will actually give better mileage though. 255/85/16 BFG MTs will fit fine. We ran into some trouble with a different brand of the same size of tires on my dad's old dually, they were a little wider and would rub sometimes. 15.5 would be pretty good mileage for that truck, but not really more than you can expect. My dad should have a programmer to sell. I think he's got 2 and soon to have only one 7.3 truck. I think he'd be selling the hypertech one, 60hp.

One thing you need to do on those 6 speed trucks:
There are little plastic bushings in the clutch linkage, replace them. You have to get them at the dealer but they're a couple bucks each. I think the main reason of the transmission ever giving problems is because the bushings are worn out and damage the gears. I had a 94 with a bad transmission because of this and my dad's 99 has troubles from the same cause.

Straight pipe on those trucks isn't very loud. The turbo knocks out most of the noise. It's only really loud if you go to a larger diameter.

Thats how I was thinking. We have had some pretty good milage increases 2-5 mpg, but thats entirly how you drive it. Striaght piped to start and will more than likely stay that way.

I have heard about those bushings I will deffinently chack on that.

I would like some wider tires on the front, just because I hate it when you park and come back and the front has sank about 4 inches. Although I will probably just keap the same size all the way aroung for simplicity. We normally run 285's on the front of 2wds and rarely have problems (using common sence).