I have a 1998 f-150 XLT 4x4 4.6L

Its my first truck and I just cant let go of it. Plus its still good to me, I recently got the bug up my *** to replace most of the front end steering components. Just did shocks am about to do Upper/Lower ball joints and new inner and outer tie rods. I was also considering doing my torsion bars and leaf springs....

So heres my question. How the hell do I figure out what the part number for my Torsion bars and Leafsprings are? I had read something online someone suggested putting in F75Z5B326KB and F75Z5B327KB said they were spring code 7 and that they were meant for a plow truck. I have no problem putting these in as long as they aren't going to royally screw my truck.

Any thoughts? Thanks

 

no clue, but i'd like to replace my torsion bars as well

 

I found this coob,

https://www.f150online.com/forums/su...sion-bars.html

I kind of see what this guy is saying as this...

The bars hes suggesting are more heavy duty and capable of more lift which I don't really think will be an issue as I plan to use the stock keys(if I can find new replacements that would be great too)

So I'm thinking what hes suggesting is just a heavier duty torsion bar. I figure if you don't lift it any it shouldn't effect ride quality.

 

i am iterested in this as well. as for the patr numbers which one is heavy duty and which one isnt?

 

or is it a right and a left

 

Those part#s are for the torsion bars used on the 7700 series. Now if they are any different than regular i am unsure

 

Im thinking they are just capable of holding more front end weight as the 7700 is for plowing. I'd really like to be sure of this first though. I don't know that my torsion bars are bad but I figure at 140k it can hurt to put new ones.

 

I have 300k miles on mine, and I'm lowered, I wonder if the 7700s are indexed differently or if they just have more tensile strength

 

Thats exactly what I am trying to find out myself. I want to keep stock ride height.

 

Well they arent going to sag at all so i think itll lift the front up some. but i dont think itll be alot

 

Do you think it'll level the truck? Or not even raise it that much?

 

According to TASCA

http://www.tascaparts.com/auto-parts...embly=ma972505

Thats the part number's

Im tempted to go take a ride to the ford dealer and see what they know.

 

https://www.f150online.com/forums/su...-question.html

 

http://www.expeditionforum.com/f42/7...on-bars-15432/

 

http://www.f150forum.com/f6/changing-7700-tbars-256050/