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Discussion Starter · #1 ·
As this mod becomes more popular, we see a lot of repeat questions.

Has anyone compiled a database of leaf spring info such as make/model, dimensions, approximate lift, spring rate, leaf count, or anything else that would help others choose appropriate front or rear leafs?

If not, perhaps we could all combine knowledge and start such a database?
 

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{cool}

Good idea.  ;D
 

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great idea Joe - I think it'll get lots of use {cool}.
 

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jungle said:
Great idea Joe!!!!!
What do we need to do?
Star doing a writeup and posting pics......... :p
 

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one way could be a sticky with multiple links to other chassis/leaf spring threads, with simple 'directions' (reply #127, etc). Each link could be subtitled, for example:

Chevy 56-inch rear leaf conversion on '77 Power Wagon:
- p2, #59: http://ramchargercentral.com/index.php/topic,100632.50.html

Chevy 56-inch rear leaf conversion on '78 RC:
- p36, #1767: http://ramchargercentral.com/index.php/topic,49434.1750.html
- p37, #1813: http://ramchargercentral.com/index.php/topic,49434.1800.html
- p38, #1875: http://ramchargercentral.com/index.php/topic,49434.1850.html
- rear diff angle: p44, #2187, http://ramchargercentral.com/index.php/topic,49434.2150.html
 

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Discussion Starter · #7 ·
jungle said:
Great idea Joe!!!!!
What do we need to do?
I'd say we would have to figure out just what springs came on what trucks 1st off ;D

I'd also say we gotta get more detailed into dimensions such as length, width (2.5" vs 3"), and even centered pin vs offset pin info.

By far the hardest thing to do is get spring rate data. This may be nearly impossible until someone has a jackstand/hydraulic press with psi gauge, and does the math to find the force required/inch. Some aftermarket spring manufacturers list spring rates, but the data may be incomplete.

Then somewhere at this database we add in all of the links Max is talking about.

While the links themselves could provide much of the info, I have found many people are very unlikely to click on any links or stickies. ;D If the info is not simply laid out in front of them, it does not exist.

Simply put, we could organize all of said data in 1 easy to read chart/thread, and for those willing to do more research, they have detailed reference links at hand.
 

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If you are talking about for different makes and models as well, check this out

http://www2.pirate4x4.com/forum/showthread.php?t=775943&highlight=jeep+spring+length

Down a bit is a link to the site all that data was pulled from. I found this site very handy when I was trying to come up with springs to help stretch the wheelbase on my CJ7. Overall length and pin offset is what I was looking for, with that info I found Toyota rear springs from a 84-89 pickup truck would work best for me.

If data is collected we could actually use the part number database for this. We could create a spring section and all the data could be entered into it. Then it become searchable.
 

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Discussion Starter · #9 ·
That really bums me out.  :mad:

My buddy threw a set of '03 ram 1500 leafs in the dumpster when he slammed his truck. Now I know that is a free 63" spring swap lmao.

Ok sweet info.

I suppose spring capacity is a easier to translate number than actual spring rate.
 

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Discussion Starter · #11 ·
This is about as far as it has gotten.....I think a lot of people never even knew about it in the first place, many others are suspicious to believe a non dodge spring will fit in a dodge.

Cool, the rockcharger site is tv_larsens.
 

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s ǝoɾ said:
I think a lot of people never even knew about it in the first place, many others are suspicious to believe a non dodge spring will fit in a dodge.
No other brand spring will bolt up that Im aware of? Maybe thats why most are skeptical.

s ǝoɾ said:
Cool, the rockcharger site is tv_larsens.
I know right, I poured over his write-up a while back and even pulled an old set of stock rear leafs out from beside my garage. Mocked em in place and never started the job. ::)
 

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Discussion Starter · #14 ·
91powerram said:
How long is the factory front spring? ???
~48"

http://www.stengelbros.com/DodgeLeafSprings.htm#Truck

Important to note, they are centered, 24" each side of the spring pin.

You can see the rears are 52" but not centered, offset 24/28" (add both together for 52" total)

Different pin locations may move the axle front or rearwards slightly, depending on which way you install the spring (frontwards or backwards)

"zero rate" spring blocks can compensate for certain amount of axle shift and move axle closer to where it needs to go.

Jungles hangers/shackles may make installation easier.
 

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s ǝoɾ said:
~48"

http://www.stengelbros.com/DodgeLeafSprings.htm#Truck

Important to note, they are centered, 24" each side of the spring pin.

You can see the rears are 52" but not centered, offset 24/28" (add both together for 52" total)

Different pin locations may move the axle front or rearwards slightly, depending on which way you install the spring (frontwards or backwards)
Best I can figure from having the 2 springs on the ground uncompressed is if you put the short side of the rear spring forward and relocate the rear frame mount rearward a few inches the axle will sit in factory location. If Im not mistaken thats what TV did.
 

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  "Yes" 


;) - when it comes to the crowd of folks here in RCC, anything can pretty much fit into anything else - it just requires some modifications to either the frame, mounts, or both.

The other thing is...the difference between a "front" and "rear" leaf spring is fast becomming a matter of preferance, and is also directly proportional to ones fabrication skills, ambition, and persistence.  In the end, anything can be made to fit anywhere {cool}.
 
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