x-code/c-code question - I gotta be different
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x-code/c-code question - I gotta be different
So - got the x codes on the front over the weekend. Why x and not v? B/C they are cheaper. Local spring guy at General Spring says the x code is much more popular, the v code is a special order.
Front lift was, um, dramatic. Now I have to do something with the rear for 2 reasons, 1 it looks ridiculous, and 2 the rear springs look pretty spent. The overload bar has an "S" bend to it. I don't think it is supposed to...
Local spring guy says don't use any of the Ex springs like many people suggest on the forums, just replace with the c code's and use the stock Ex blocks. I see most of you guys went with taller blocks. Was that b'c the b codes sit lower than Ex springs to get them level, or because you lost some lift when you broke the b code spring pack apart?
Front lift was, um, dramatic. Now I have to do something with the rear for 2 reasons, 1 it looks ridiculous, and 2 the rear springs look pretty spent. The overload bar has an "S" bend to it. I don't think it is supposed to...
Local spring guy says don't use any of the Ex springs like many people suggest on the forums, just replace with the c code's and use the stock Ex blocks. I see most of you guys went with taller blocks. Was that b'c the b codes sit lower than Ex springs to get them level, or because you lost some lift when you broke the b code spring pack apart?
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Local spring guy says don't use any of the Ex springs like many people suggest on the forums, just replace with the c code's and use the stock Ex blocks. I see most of you guys went with taller blocks. Was that b'c the b codes sit lower than Ex springs to get them level, or because you lost some lift when you broke the b code spring pack apart?
When I did my swap I added an extra leaf to my X codes and did both the B mod and taller blocks as well as 2 plates cut from the slapper bar. I saw +3 3/8" front and +4 3/8" rear, my goal was to have a very firm ride and a near level stance while pulling my tongue heavy ToyHauler.
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so if rear b codes with stock blocks give about stock ride height, then rear c codes will almost certainly have a higher ride height even with stock Ex spring blocks?
I really only need about 1 inch of lift to the rear to make it level with the front x codes.
I really only need about 1 inch of lift to the rear to make it level with the front x codes.
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Rear spring codes:
A = F-250 & Excursion (6,084 pounds @ground)
B = F-350 SRW (6,830 pounds @ground)
C = F-350 DRW (8,250 pounds @ground)
General Spring lists them as 3300 capacity (B code is 3000)
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General Spring specifically refers to it as the dually spring. I will see this weekend how it turns out.
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Mountain Pass
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I'm about to do this and have a fairly new set sitting in the garage. Please post up the results
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From: SoCal...LP to the LB
When I did my swap I added an extra leaf to my X codes and did both the B mod and taller blocks as well as 2 plates cut from the slapper bar. I saw +3 3/8" front and +4 3/8" rear, my goal was to have a very firm ride and a near level stance while pulling my tongue heavy ToyHauler.
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results are very good. The truck sits level with front x code, rear c code. maybe a little rear high, looks very stock. I did not use any of the ex springs packs.
Couple notes, the rear c codes mangled my mbrp exhaust a little. the bottom overload spring will hit the exhaust at full droop.
the front x codes feel just right. the Ex now corners much flatter, and the ride is so much better than my worn out springs. The truck is easier to control and feels more stable.
one last thing, I would guess i got between 4-5 inches lift. These will of course settle pretty quick, probably end up with 3-4 inches of lift.
Couple notes, the rear c codes mangled my mbrp exhaust a little. the bottom overload spring will hit the exhaust at full droop.
the front x codes feel just right. the Ex now corners much flatter, and the ride is so much better than my worn out springs. The truck is easier to control and feels more stable.
one last thing, I would guess i got between 4-5 inches lift. These will of course settle pretty quick, probably end up with 3-4 inches of lift.
Last edited by jeeplj8; Mar 3, 2012 at 01:55 PM. Reason: lift #'s
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Can you take a pic of the rear suspension so we can see how close the spring is to the exhaust?
Thanks.
Stewart
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No, I'm saving the old front leaves to make up a mini leveling pack if I need it when I upgrade my tire size. The extra leaf I added to my new front X codes was the top overload leaf from the new rear B codes, that top leaf has to come off anyway to keep it from damaging the EX's rear A/C lines. I think I've now seen where two other members here have done the same thing with their top overload leaves, one to a set of V codes and another to X codes like mine.
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No, I'm saving the old front leaves to make up a mini leveling pack if I need it when I upgrade my tire size. The extra leaf I added to my new front X codes was the top overload leaf from the new rear B codes, that top leaf has to come off anyway to keep it from damaging the EX's rear A/C lines. I think I've now seen where two other members here have done the same thing with their top overload leaves, one to a set of V codes and another to X codes like mine.
So how would the top leaf spring get into the A/C lines?
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When the spring unload downward the bottom leaf (which is not full length) digs into the exhaust. it actually broke it free at the clamp behind the muffler.
The Ex springs do not have anything that protrudes toward the rear.
The F-series trucks have a different exhaust outlet position because they do not hane to go around the fuel tank.
