Factory spring mystery

[jjdustr340]

I'll get you my other numbers later but CURRENTLY, measuring at the bottom edge of the running boards which seem to follow that pinch weld line pretty closely -
17.25" at the rear
15.5" at the front
Keep in mind I put in Rubicon front springs and max tow rear springs. The max tow springs were a shade shorter than Overland springs.
It gets more complex because I added a winch and steel bumper, so I'll have to try to find my original numbers, but I bet we were not too far apart in rake before I started Frankensteining my truck.

Maybe mine isn’t as far off as I thought then. Just looks a hell of a lot more slanted then the others I’ve seen at dealers and on the road. Thanks.

Edit—-forgot I had pics.

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[ShadowsPapa]

Maybe mine isn’t as far off as I thought then. Just looks a hell of a lot more slanted then the others I’ve seen at dealers and on the road. Thanks.

Those on dealer lots in most cases SHOULD be stock, but around here....... never know. On the road, we have no idea. Leveling kit, lift, load in the back, etc.
I'll try to get my first numbers later tonight. Trying to make sense of the mess in shop - two cars torn apart, one getting a tilt steering column, one a complete suspension and steering rebuild, and then 3 wiper motors all torn apart for restoration. I'm worse than my wife - she only has 34 projects going at a time her last count.

 

[Garemlin]

I REALLY wish I knew someone personally involved in Jeep suspension design - I'd love to know what's up with these. It's getting really complicated, not that it was ever really simple. But at least there was some logic to it - for a while.

Yeah it makes no sense. Especially the fact that the Overland and Willys share the same front springs. One meant as more of a road cruiser and the other is basically a Rubicon lite. Looks like doing spring swaps in the future isn't going to be as easy as following number sequences.

 

[steveorama]

I used my Google-Fu for quite some time trying to figure it out and finally just gave up.
One reason I was even trying to figure it out in the first place is because I seem to have a TON of forward rake. More than the non-80thA editions I’ve seen around.
When measured at the front and rear of the pinch welds, I have 2.5” inches of difference.

I could find almost nothing on the new spring numbering either. I was looking at some Rubi takeoffs and wanted to compare to my stock setup before I purchased a set, but since I could only find write ups on the old spring numbers I took a chance. My rake was very close to that too around 2" IIRC. However, I just swapped springs and shocks yesterday from a JTR (339/340 & 449/450). The rake is 1 1/2" now. The ride is a lot stiffer than I thought it would be btw.

I'll get you my other numbers later but CURRENTLY, measuring at the bottom edge of the running boards which seem to follow that pinch weld line pretty closely -
17.25" at the rear
15.5" at the front
Keep in mind I put in Rubicon front springs and max tow rear springs. The max tow springs were a shade shorter than Overland springs.
It gets more complex because I added a winch and steel bumper, so I'll have to try to find my original numbers, but I bet we were not too far apart in rake before I started Frankensteining my truck.

I just measured the same on mine and I have 16 1/2" front and 18" rear on 33" tires. Stock bumpers no winch. Using the same measuring points, my previous 2015 Silverado had a 2" rake factory so I have less rake now than I did with that truck.

 

[JTMXT]

Don't feel bad. I'm still trying to figure out my Willys springs. My front right is 6342AA and my front right is 7795AA. This does not even come close to what stock spring numbers are on Sports and Rubicons. My rears have no tags at all.

Looked under several glads at local dealership. Several had same numbers. Asked shop manager about. Answer was one was new ,old stock from previous year other was that years part. In other words same part . different part number because of different year make.my fronts on max tow are 7800/7801

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