leaf spring rates - Ranger-Forums - The Ultimate Ford Ranger Resource


Suspension Tech General discussion of suspension for the Ford Ranger.

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Old 09-17-2007
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leaf spring rates

we have a pretty good idea on what torsion bars are what, at least as far as lightest to heaviest rate. i would like to get some info compiled on the leafs so we can determine the same rate info.

if we can get a bunch of guys in here with thier spring codes, and vehicle configurations i think we can put together a list. ill start

spring code = 1K
truck = 02 4wd ex.cab 4.0 manual


anybody else?
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Old 09-17-2007
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truck = 04 4wd extend cab 4.0 auto level II
spring code = 1C
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Old 09-17-2007
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Like all LIIs, mine is 1C.


Here's a summary of the leaf springs that were listed for Rangers in 2003. Other late models are probably similar:

combined rating / pack thickness at axle pad / number of leaves / door code

2750 lb / 1.82" / 4 / code C
2600 lb / 1.64" / 4 / code K
2550 lb / 1.60" / 4 / code ?

All leaf packs are 56.5" x 2.5"
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Old 09-17-2007
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bob, thank you. i hadnt found any info on thickness in my searching. that pretty much takes care of my needs!

anybody wanna fill in that last blank?
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Old 09-17-2007
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The lightest spring pack (2550) is only listed for 2WD regular cab XL/XLT equipped with the standard "Payload Package 1" - at least that's how it was in 03. I haven't been able to figure out the code but someone out there must have a truck with those specs.
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Old 09-17-2007
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don't know mine.....they are Skyjacker springs...
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