I have read too many X code and V code spring threads to count, but there's virtually no info (that I have found anyway) on 5200 lb TT code springs (P/N F81A 5310 AFD). I recently purchased a set and I'm getting ready to install them on my '99 5.4L F250. Has anyone installed TT code springs on an F250, and if so were there any complications during the install (e.g. axle roll or shift, removing the front bumper, etc)? How much lift did it give you? Thanks guys, any info is appreciated.

 

I think we need to clear up some confusion here Sarge. The TT code front springs (5200lb) are for '05+ coil sprung trucks and the T code front springs (4400lb) are for '99-'04 4X4 trucks with leaf springs. Looking at your previous posts I see you have a nice looking '99 4X4 Superduty so that means you have leaf springs up front. I'm not sure what factory spring code your V-8 F-250 came with but I know the Excursions with V-8s came with B code fronts rated at 4100lbs and everyone thinks the EXs got short changed on springs with softer weaker suspensions than the Superduties. So putting a set of T codes on yours might not get you what you want, of course I'm not sure exactly what you are looking to get from this spring swap. What do you hope to get from it? And what is your factory spring code? (Found on the door jamb sticker under the SPR heading.) Spring swaps are a very popular subject over in the Excursion forum where I saw you also posted a question about this, lots of good folks with much info there. My V-10 EX came with C (4300lb) codes from the factory but I have upgraded to X codes (6000lb) with an extra leaf so I'm about maxxed out using all Ford parts. There are many options available to get your truck where you want it to be.
Welcome to FTE!

 

My truck came with T code springs up front and A code springs on the rear according to the door jam. I got "TT" from another thread somewhere based on the part number on the springs themselves. Thanks for clearing that up. Turns out what I think I have are B code rear springs with 350 blocks and T code front springs that have been modified with the extra overload leaf off the rear springs. I was looking for a slightly raised look with the 350 blocks, stouter rear springs for pulling my 5th wheel, and lastly a semi-level look with what I thought were heavier front springs when I bought them.

 

OK, for what it's worth I finished installing F350 springs and rear blocks on my F250. Lots of work in my garage, but pleased with the end result. Raised it a little over an inch in the front and about 2 1/2" in the rear.

Before



After

 

pics dont work

 

Yeah, I'm not sure how to add a "URL" correctly. I'll try again later, or you can see them in my garage (first pic on the left is with the new stuff).

 

If you go into Traveling4awhile's album, you can see the before and after pictures.

 

[quote=WE3ZS;13128468]I think we need to clear up some confusion here Sarge. The TT code front springs (5200lb) are for '05+ coil sprung trucks and the T code front springs (4400lb) are for '99-'04 4X4 trucks with leaf springs. Looking at your previous posts I see you have a nice looking '99 4X4 Superduty so that means you have leaf springs up front. I'm not sure what factory spring code your V-8 F-250 came with but I know the Excursions with V-8s came with B code fronts rated at 4100lbs and everyone thinks the EXs got short changed on springs with softer weaker suspensions than the Superduties. So putting a set of T codes on yours might not get you what you want, of course I'm not sure exactly what you are looking to get from this spring swap. What do you hope to get from it? And what is your factory spring code? (Found on the door jamb sticker under the SPR heading.) Spring swaps are a very popular subject over in the Excursion forum where I saw you also posted a question about this, lots of good folks with much info there. My V-10 EX came with C (4300lb) codes from the factory but I have upgraded to X codes (6000lb) with an extra leaf so I'm about maxxed out using all Ford parts. There are many options available to get your truck where you want it to be.
Welcome to FTE![/quot

Your Green Giant looks great!

I'm researching and learning the spring-thing too. Do you have a reference for SD/Excursion springs? I've seen a few comments about a member (bruce1954) I believe, having compiled info but haven't been able to locate it thus far locate. Thanks

 

Looks good Sarge! Sorry I didn't get back to you sooner but even if I had I didn't have any more info on the front spring codes you were using. I hope they serve you well!


Renegade, Thanks for the compliment.
I have the info list from bruce1959 but all of the front spring info is for leaf sprung 4X4 trucks, your 2X4 EX uses the coils so thats a different story. I see you have found and posted in the EX forum's 2WD suspension upgrade thread, that sould get you heading in the right direction.
Good luck!