[Coueshunter]

I have this info off 2 sets of springs. anyone know what springs these are? i tried to cross referance them to a list obswiz put but didnt match. some were close....

this is what I was sent... any ideas?

2 springs with top and bottom overloads,part number rpn3242,,3c34cb.
2 springs with late model eyes,part number,,rpn1558 ,,f81a afd.
2 springs, with late model eyes part number,,rpn0483,,2c34ajb.

 

[Bradbilt]

I never had any luck with casting numbers. They are like production numbers which dont mean much in the ford world

 

[Coueshunter]

I found this link which seems to get them close... but not exact...

spring code part numbers - Ford Powerstroke Diesel Forum

 

[Bradbilt]

They are just casting production numbers, cant really go by them.

I am sure if I go out in the garage and get the casting numbers off my 4 B codes, they will be different again

 

[OBSWIZ]

X2.....

 

[Coueshunter]

any easy way to identify B code rears? Short bottom spring 4-5 leafs? anyone know?

 

[Bradbilt]

They are all 5 leaf springs, unless you are getting a cab-n-chassis spring

 

[wildstang]

Can you tell physically by leaf thickness and arch?

Search Results | SD Truck Springs | Leaf Springs, Helper Springs and Suspension Parts

 

[Bradbilt]

Nope. they just have different rates.

It is kinda funny going by the aftermarket. the X code spring they list as " Ford X Code spring. It is the heaviest of the factory springs offered for front of the F250 and F350." rated at 2630lbs and 1 5/16"
is thinner than the 2030lb spring which is 1 13/16"

 

[OBSWIZ]

I've seen nothing but inconsistent results using after market so called Ford springs...IMO sepend the few $ more and get Ford springs from a Ford dealer.

True X codes are 3000lbs ea.