youll be good till the leaf springs settle and it drops a little, i would go for a 10" lift to run 38"s IMO. its going to rubb the back of the fender closest to the door jams when you go up drive ways or off road it. youll have to go with a 12" lift to not have to worry about any trimming or rubbing for a 38" tire on the ex.

 

Which drive shaft front or rear?

My install shop suggested lengthening the front drive shaft 1-1/2" and said the rear drive shaft length was fine.
They centered the steering wheel for me but the truck pulls to the left when braking. They spaced the bumper out 1/2"
I'm going to have it aligned on Monday.
The alignment shop said most of the Super Duties caster and camber is out of specification from the factory and that the larger tires magnify the out of spec caster and camber.

I researched lifts for the past year and Donahoe Racing is the best riding and perfoming lift available.

The Exursion looks and rides SWEET.
I need to try lowering the air pressure in the tires. Right now I'm running 40psi in the front and 45psi in the rear.
I'm going to try 35psi in the front and 40psi in the rear.
What pressur are you running?

I'll post some pix next week.

 

Don't know how it adjusts camber??? The only thing that does that is adjusting the balljoints on a solid axle rig. Sounds like a typical shop trying to earn some more $$$ to me. And, the only way to adjust for caster is to add some degree wedges to the leafs.

 

Thats exactly what the alignment dude said the CAMBER is usually off spec from the factory and he might have to adjust the ball joints.
The Excursion pulls to the left when braking so something needs to be aligned.

 

I was looking to basically go with the same kit for my '01 EX. The truck is a DB Drive, Pioneer, and Myron & Davis demo vehicle for my car audio business. Nothing is a better rolling billboard than a lifted Excursion.

When you get the truck reprogrammed could you post your findings of how it handles and milage.

 

Well, my programmer for some reason doesn;t allow for the 87, towing, and performance levels. It only allows for one level(which requires 91 octane). So, I may have to send it back to Superchips to have it updated. Also, the Superchips doesn't allow for a speedo change for larger tires, so I'm pretty much SOL there unless I get a Tru-speed unit or go back to the dealer to have it reprogrammed.

So, mileage is not 100% accurate, but based on the fact that I am running a tire that is 18% taller than stock, I figure my mileage is off by that amount. So, for every 100 miles I go, I add 18mi to it. My last tank averages 10mpg on the computer. Figure 11.8mpg then. Not bad with mixed hwy/town and a lot of Xmas shopping.

FWIW, I took the programming back to stock for when I drive everyday. So, I will only run the programmer what I am going to tow. And then I will fill up before then with 91 octane.

 

Man o man that is one good looking X!!!!, did you do all the work yourself or have it installed?

 

your milage sounds cool. That's one of my fears with raising it. But everyone can agree an Excursion looks bad *** raised. For the business it would be a great advertising tool. I'm averaging about 12.5 per gallon now. Pretty much can keep it there with the programmer I guess. I drive this truck alot. Used for demos and also for on-site installations for my customers.

 

I do all my own work.

 

Very sweet ride!

 

I dunno - a big a** lift and no driveline mods.....

I ended up putting in a double carden with three inches of lift in the rear....

Have you had it up to 80MPH yet - you could be in for a big suprise - maybe even at 70MPH....

 

70mph on the speedo is where I feel the vibe at its worst. That is 80mph+ in reality. I will be installing some shims tomorrow or Sunday to fix this though and will let you know how it works.

 

I know how to cure the vibe. I beat my head against the wall for quit a while and even lowered the transfer case. That just put the vibe at a different speed. Get a cv joint like a superduty has in the front of its rear drive line. Have it installed on your shaft then install the driveline with the slip yoke to the rear and the cv at the front. This jumped out and bit me when I was servicing my superduty. It has 12" lift and no vibration.

 

I don't need to know, but thanks. I have a $1,000 custom driveshaft with a CV in the front and slip yoke at rear. 0 degrees rear diff to driveshaft. I still get some vibration.

I tried shimming out the ying yang - nothing. Some trucks just weren't meant to be lifted.....

Mine is tolerable now after alot of work, $ and headaches....

 

Wow, who got into on the drive line?? It only cost $175.00 to have mine cut last week and turned around with a CV joint. I didn't put my transfercase back to stock either. It remains 2" down from stock. Smooth as my Superduty now.