03-12-2010, 07:33 PM
A newbie here looking for some spring de-code help....
I bought an 02 Ex 7.3 Diesel 4x4 about a year ago. It had 33" tires and the prior owner told me he had the front springs changed out to F350 springs. I just changed to a new set of 35" BFG KM2's and love 'em. But, I get some tire rub (as expected) and now looking for the best lift solution.
I see plenty of speak about V codes springs so I am trying to ID what I currently have. All I know is what the old owner said "F350 springs". No idea what year or model and no benefit of "before & after" height comparison. They are stamped as follows;
Any help is much appreciated.
Welcome to PSN.
99% sure they are V codes. If they were X codes the 35s would likely fit. By you description they fit like V codes. I will see if I can find those codes but Ford changes the codes all the time so it makes it confusing.
If you have not already I would recommend you check the rub locations when you drive up on top a high curb or maybe run only one wheel up on a ramp like you use to change oil. Then work the fully compressed side back and forth and check clearance. Mark all the spots that rub with white chalk or crayon. Then use a heat gun and rework or cut the molding where needed to get the proper clearance. If it the bumper you could very easily trim the very minimum need and use a a edge cover and it will look like it was factory done.
That is if you are fine with the suspension as is. If not then I would strongly recommend either the 3" or 4.5" Icon Shackle hanger lift. They will not only give you the extra lift needed to easily clear the 35s and allow the fully suspension travel with no contact but you will actual get increased suspension travel and even better ride quality from it.
If you do choose to do any lift above those stock V code springs and frankly even with only the 350/250 springs you should get a adjustable pan rod /track bar. Most everything else will be in the kit unless the past owner already did if.
Did he mention any changes to the rear leafs?
Also unless he added it you do not have a rear sway bar and you really do need that if you want to ever have good handling especially if you ever tow or carry a heavy load. Go to a salvage yard and pick up a 30 mm Super duty sway bar and then pick up the attachment parts from ford. It is stronger, works better, and is less costly than the aftermarkets sway bars that are popular.
If you do do a lift pick up some Custom valved Blistens from Cary of CT performance a site sponsor on here. His screen name is OBSWIZ. In fact check with him on pricing out what you need in general. He had Blisten create specially valved shocks specifically for the Excursion. The ones they offer thru Blisten are the same valving as for the 250-350s which have very different weight distribution. I have never seen anyone that purchases these customs ever have a complaint about there performance. Not the case with the stock blistens where some found the dampening and rebound a bit off for the X.
You really should PM Cary if he does not pop into this thread. He has helped literally hundreds of people correct or setup the suspension and handling of their Excursion. He was the one to first work out using the B codes and modify the leaf packs to offer the best option for correcting the stock rear leaf situation. The fact he has recommend hundreds of people to ford stocked springs when he could have easily made a ton of money recommending some aftermarket that he sold I think speaks a volumes to his character and sincerity to want to help people get the best setup for their goals. He helped guide me with my current suspension build I will be starting in the next couple months. As well as front end alignment specs to get better tracking and improve the steering when you add bigger tires The stock ford system is not something to write home about. In fact everything I posted here I learned from him.
I think 33-35" tire but most importantly a minimum of 12.50" tires are minimum you should run to give the X a proper base and footprint on the road. The stock width tires give too narrow of a base and creates for lack of a better term a bobble-head effect when taking turns or driving over/on road irregularities. This is greatly magnified when towing or heavily loaded.
Front: V codes are best IMO X codes can work as well and give a bit more lift ( about 1.5" over V codes) but are also a bit stiffer.
Rear: Modified B codes + rear sway bar 30mm Ford OEM Super Duty
Front: 3-4.5 Icon Hanger lift + adjustable track bar
Rear: blocks to correct front to rear rake.
Tires: 35"x12.50"x20" Still good 35x12.50x17"-18"
Wheels: Ideal: 20"x10" or 9" (10" is better) still good 17"-18"x9"-10" all need 4.5" backspacing.
Shocks: Custom valved Blistens from CT Performance. On the X dual fronts from what I am told work even better without being harsh like they tend to be on the pickups but are not necessary. (What I will be running.) But I have not actually ridden in one setup like this.
I have ridden in and drove a few Xs, before and since I purchased mine. They were setup in a number of different ways. Stock, big lifts, V codes, V codes plus lifts etc.. By far the best was the V codes with Icon hanger lift with 12.50" or wider tires on 20x10 rims. Next best was same minus the ICON lift. I swear it no longer handled like a truck or a SUV for that matter. The weight was still there but it stuck and did not lean or sway. The only weak point was the steering which is another area that coudl use some work. I know that sounds like BS and would not beleive it either but it really felt like it handled that well. With a bit of work and money invested you can really make these Excursions into impressive vehicles from the boats they are in stock form.
Way more then you were likely looking for.
03-13-2010, 03:26 PM
Thanks Tarm for posting most of what I recomened..specifics please PM me..we can fix all the suspension problems on the EX and you won't believe the difference. helped hundreds across the country.
PM me if I can help you.
01-19-2012, 09:16 PM
Thanks for your detailed and clear post!
I've read many threads/posts on PSN and have not posted or replied to anything yet, but I felt that I should thank you for your outstanding reply "swimage." I've been wanting to lift my 2001 7.3Ltr. Ex for a long time, but with my lack of mechanical knowledge, I have always been too confused and overwhelmed with what parts I need, as well as which brands to go with, to do a complete job with a safe and comfortable ride quality. Most online retailers don't provide enough info. Your reply helped a great deal...thank you!
I'll contact Cary at CTP for pricing and any further advice.