Rough Country 4” spring dimensions (1 Viewer)

[-MaTTi-]

I didn’t found anywhere specs for the Rough Country 4” springs, even their customer service don’t have exact measurements.

So, I measured them if someone else would like to know too.

And yes, there is some anti-friction pads between. That was one question too without proper answer.

They came without any package/insulation from the factory, so there is cratches/chipping in the paint already.

Front spring:

 

[-MaTTi-]

Rear spring:

 

[-MaTTi-]

Spring eye Ø and width:

Eye to eye, front: 1055 mm, rear: 1030 mm.

And the frame dimensions:

 

[brian]

You will find that they are correctly named.

 

[-MaTTi-]

You will find that they are correctly named.

I know. That’s why I’ll take one leaf out of each and grease them well.

 

[-MaTTi-]

For comparison, BDS 4” lift:

from bds book.

8401 is front
40.375 eye to eye, free 7.875, 20 Frt eye to center, 24.5 rear eye to center, both eye dia are 1, 5 leafs, 2.5 wide, weight 33.75lbs

8409 is rear
40.5 e to e, free 9.25, f e to center 21.372, r e to center 24.625, both e dia is 1, 5 leafs, 2.5 wide, 34.25 lbs,


fj60 does spec a 1.4 dia eyes, a 2.76 wide spring, 5 leaf front 8 leaf rear (beef)

Just for craps, i checked the rancho cat, and it specs 1.38 eyes for the fj40 springs and a 2.75 wide spring.

 

[-MaTTi-]

Could someone post other brands J40 spring dimensions here?
• eye to eye
• eye to center pin
• free height