On another note, is the axle (Dana 40 I think) in this truck bad?
Am I just better off selling truck and getting a different year?
I like this body style and the interior layout. They have an older rig feel but with fuel injection, and power options.

 

250's have a D44 HD *unless they are super cab* which came with the D50.
D44 has been fine for me for 29 years, though I've not been pushing big tires or doing any rock crawling.

 

Glad to hear that. It is an extended cab. Not a crew cab. So there is a slight chance it could be a 50? I'll have to take a closer look Tomm

 

Super Cabs usually get the D50.
You can tell if the hub has taper (44) or is a cylinder (50)

 

No, you don't need springs at all. Use the ones you have. The kit I mentioned only moves the shackle to the rear of the leaf and gives you a 2.5" lift in the front.
85-91 Old School OBS Ford F-350 Front Shackle Reversal, 2 inchlift. ? Sky Manufacturing

 

An F250 has two leaf *inverted arch* springs.
im not seeing how reusing them is going to fix the ride harshness.

 

It won't. It's a leaf sprung TTB. The shackle reversal may change the ride slightly, but I would imagine the ride will remain pretty much the same.

 

I don't know about using springs off a SuperDuty on an older F-250, but the SOFTER sprongs from a pre-SuperDuty F-350 will likely give a much HARSHER rde in the TTB suspension of ab F-250. The problem is travel, but not quite as simply as ArdWrknTrk implies in post #6. In the TTB the spring and tire are at different points on the lever arm. The tire moves farther than the spring does. On a solid axle there's no lever arm, so the spring and tire move the same amount. So on the TTB the spring needs to be stiffer to give the same ride as a softer spring would if there were no lever arm (like with a solid axle).

If you put a softer F-350 spring on the TTB suspension you're going to move it farther than the stock F-250 spring would move, and farther than the F-350 spring would move when installed with a solid axle. The results will be slamming into the bump stops, and a very harsh ride.

If you want to lift the front end of an F-250 you need to use drop brackets (as ArdWrknTrk has already said). The drop brackets will be made by a company that makes and sells lift kits for F-250s. I'd strongly suggest using the springs that they intend be used with their lift kit. That will give much more predictable results than trying to piece together parts that were never meant to go together.

On the other hand, the front sitting 3-3.5 inches low doesn't sound like the stock stance either. The back sits a little higher empty, but not that much. So I'd guess either your front end has sagged (but if it sagged that much you'd have really screwed camber), or else the rear is sitting higher than stock for some reason. Did anyone add taller than stock blocks? Or lift springs or an overload helper?

 

It's either level the truck and keep the TTB (only the ttb springs will work with this option) or don't do anything at all.
He has already said he wants to keep the costs to a minimum and an SAS/RSK isn't cheap no matter how you do it.

 

Just measured, its just under 4" difference.

 

Took measurement, it isn't sitting quite flat here. Just under 3-7/8ths difference. So I will go with the stock springs with the RSK. Saves money to. I'm. Not sure if the rear has been blocked. I don't think the front springs are bad, or at least not bad enough to cause that much sag. I just put the wheels and tires on, there from an 85 f350. 100 bucks, Toyos with good tread.

I don't know anything about the truck except for surprises. Just got one while moving truck for picture. It's a cold morning, when I put it in drive and reverse the engine basically cut out, almost seemed to stall? This is for another thread but maybe someone knows the problem so I can start looking into it. It hasn't done this before, but this is the coldest temp when I've started it.

 

That's a good looking truck.
It will ride a lot better with a few hundred pounds in the box.

 

Thanks. I found a kit here is the link below. I contacted the website it's a direct bolt on according to them.
So have a couple questions.

Kit is only 2.5" lift. I did tell them I have 3-7/8th difference. I they either figure this kit would do it or this is the highest height they carry for my truck?

My other question, do I need a drop pitman arm? For the 2.5" Rsk or if I end up going to a 3.5"- if I can find one?

Thansks guys.

https://www.offroadunlimited.com/orustore/pc/viewPrd.asp?idcategory=0&idproduct=8305

 

Once again..
You need to read the last sentence in your link, and understand that this **** doesn't work with a 250's TTB.

 

Ok so that kit doesn't work, I got the impression from the salesperson it was complete and bolt on and had drop pieces etc. I thought being complete it would be easy to order one thing. So forget that kit. I had emails sent out to companies before posting on forum made it more confusing for myself when getting responses from them.

So BFF gave a link (below) to a kit that works if I buy the drop brackets separately, correct?

I can use this kit, and buy drop brackets separately listed below kit details and use with my stock springs and it will work?

http://www.skysoffroaddesign.com/collections/ford/products/ford-fsrob-002