[FatSal]

On the parts diagram, it just has 14mm (2 nub) and 18mm (3 nub). Is the 4 nub no longer an option?
View attachment 2814144

Yes there is a 23mm 4 burrs front coil spring pad. The part number is 1263211084. Check it out:

NOS Genuine Mercedes Benz W126 Coil Spring Pad 1263211084 / A 126 321 10 84 | eBay

Find many great new & used options and get the best deals for NOS Genuine Mercedes Benz W126 Coil Spring Pad 1263211084 / A 126 321 10 84 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[FatSal]

I thought the higher/more compensatory the SLS adjustment, the more pressure it puts on the system and earlier deterioration. I could be wrong.

You are absolutely right. A Mercedes mechanic advised me not to over-compensate the SLS adjustment as it could lead to premature wear.

I do not like my car's stance as it is raked forward. I like it level. The spring pads are 3-nub in the rear and 2-nub in front. I will have to replace the front to 3-nub to level the car.

 

[FatSal]

I didn't know there were rear 3-nub pads--unless you can use ones intended for the front on the rear.

So, if the SLS system is sagging, at least it's not over-stressed at that point in time (although it could be evidence of a past an SLS problem, aside from spring/pad wear, diff/subframe bushings)?

In my case, all parts are getting replaced, so maybe the thicker 14mm pad is a good insurance option for not only SLS stress protection-- but visually, particularly with new springs front and back?

The part number is 1153252444 for the 3-nub or 3-burl 19mm rear spring pad. Take a look: MERCEDES (1968-1992) Coil Spring Pad - (3 Burls - 19 mm) REAR LEFT & RIGHT (2) | eBay

 

[FatSal]

You'll have to install the new springs and pads and drive around for a month or so. Then you'll know how the car will settle and see if you like the stance.

Take photos of the car on a level ground. You'll know if you need to switch the pads or if you can get away with adjusting the SLS without over-compensating it.