FF rear spring code ?

Reply Subscribe

Thread Tools

Search this Thread

Mar 14, 2017 | 03:56 PM

High_HP

Thread Starter

Laughing Gas

Joined: Nov 2007

Posts: 824

Likes: 179

FF rear spring code ?

My spring code on the door tag is DDFF. I know what the DD fronts are (lots of info out there). But what are the FF rears as far as spring rate, etc? Thanks

Mar 15, 2017 | 06:40 AM

High_HP

Thread Starter

Laughing Gas

Joined: Nov 2007

Posts: 824

Likes: 179

Bumping thread

Mar 15, 2017 | 09:17 AM

Lou Braun

Fleet Mechanic

Joined: Nov 2003

Posts: 1,372

Likes: 14

From: West Cornwall, CT

Some Rear Spring Info:

Rear Spring Codes

BB - 5A975 leaf

CC - 5A975 leaf

DD - - 5A975 leaf

FF – 5560 leaf

GG - 5A975 leaf

HH - 5A975 leaf

KK- 5A975 leaf

A = 6,084 pounds @ground = F-250
B = 6,840 pounds @ground = F-350 SRW and some F-250s
C = 8,250 pounds @ground = F-350 DRW

Rear Springs — F-Series
B — 3C34-5560-L
C — 3C34-5A975-D
D — 3C34-5A975-G
E — 3C34-5A975-K
J — 3C34-5A975-J
M — 3C34-5A975-E
N — 3C34-5A975-F
P — 3C34-5A975-C
S — 3C34-5A975-C

B — 1C34-5560-CB, F-250, F-350
C — 1C35-5560-DB, F-250, F-350
D — YC35-5560-EA, F-250, F-350
M — YC35-5A975-AA, F-450, F-550
N — YC35-5A975-BA, F-450, F-550