X codes and f350 rear blocks? - Ford Powerstroke Diesel Forum
99-03 7.3L Exterior Discussion Body and Accessories Talk

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post #1 of 22 Old 03-04-2013, 06:26 PM Thread Starter
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X codes and f350 rear blocks?

I Was wondering if anyone has done this? pics would be great. Looking to buy x code front springs and i was thinking of putting the f350 blocks In the rear.

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post #2 of 22 Old 03-05-2013, 05:58 AM
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Been done many times..will ride a tad stiffer in the front. may need longer shocks and a adj track bar to center the axle.

Pm me if I can help..have all.
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post #3 of 22 Old 03-05-2013, 07:38 AM Thread Starter
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Re: X codes and f350 rear blocks?

Ya i was thinking of replacing the shocks anyway. adjustable track bars aren't too pricey are they?

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post #4 of 22 Old 04-03-2013, 05:01 PM
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Hi I had to go "X" springs in the front due to the weight of the plow. It was a bolt on keeping the shocks and existing trac bar. It was affordable and well worth it in my opinion.
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post #5 of 22 Old 04-06-2013, 11:53 AM
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You could do a front hanger kit too. Supposedly supposed to help ride a little as well.
I'm not so sure the x codes are a good option unless you are using a plow, aftermarket front bumper, etc.

I've been contemplating x codes for a while now, but I just decided to do a hanger kit instead. Everyone has said x codes are a tad stiffer, but I am not sure what that equates to. It would be hard to determine unless you could ride in a truck that has them. I believe they would still be a better ride than lift springs. You will also only gain 1-1/2 to 2", not sure what you are after.

I was also going to do x codes with small hanger kit, but I just got a deal on hangers; so that's the route I chose.

03 F350 7.3L Auto CC LB Dually 410's (LS Rear)315's

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post #6 of 22 Old 04-06-2013, 12:10 PM
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Have you measured to see what height you need?

Best ride quality will always be from using a V code factory spring. You can get a hanger lift in 2,3 and 4.5" which will enhance the ride quality by giving additional travel.

If you want new springs and 2" and the best ride quality get X code springs will ride better than any lift spring.

As always a 2" lift needs longer shocks and requires a adj track bar or a correctly made drop bracket to correct the axle that has now shifted 1/2-3/4" per 2" of lift. Its geometry.. a science. The axle shifting will side load your spring bushings which will cause premature failure and doglegging.


2" hangers..
3" hangers..
2" mini spring packs..
X code springs..
adj track bar Billet Aluminum..
Bilsteins set of 4ea..
Rear blocks..TBD
.
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post #7 of 22 Old 04-28-2013, 03:55 PM
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I installed 3950# springs (X + Code rating) and love them, they brought up my front end about 3" and to level.

Your shocks will dictate your ride quality, When I adjust my Rancho 9000XL's it's like a whole different vehicle.

One thing for sure don't cut the front bolts, I did and then had to buy replacements from Ford.


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post #8 of 22 Old 04-28-2013, 05:00 PM
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have been looking at leveling kits and trying to decide which way to go. I have a 2002 f350 crew cab, long bed. I think I have decided on the x codes. I am only wanting about 2 inches of lift. would they be better than an after market 2 inch spring pack? thanks
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post #9 of 22 Old 04-28-2013, 08:33 PM
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The actual lift kit springs have more curve at a softer # rating vs. X Codes have the same curve at a stiffer # rating.

I have no experience with an aftermarket leveling kits but from my experience of my current setup you'll have the extra suspension travel and assuming the kit springs do have the same load rating as the factory springs you'll have more body roll unless you choose your shocks wisely.

What do you plan on doing with your rig? Unless articulation is a key point X Codes probably suit you great.


My Signature pic when I first installed my X Codes, this one was taken after about 25k miles, you can see they settled some but still hold it up good even with the 250# front bumper, both pics are with 285/75/R16's.
https://sphotos-b.xx.fbcdn.net/hphot...09571135_o.jpg


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post #10 of 22 Old 04-29-2013, 08:35 AM
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Where did you get your springs as Ford X codes are #5200lbs pair.
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