rear spring rate/load charts

[pjtoledo]

I need more rear spring in my '05 2wd. I'm not looking for much lift, just less bounce from the 500 lbs of tools 'n parts I carry all the time.
Any charts around I can reference when looking for used springs?Also have a question, there are some numbers on the bottom leaf: 4L54 DA which is a part #, but what about the other number, RPN 1855? Is that a load number? My '00 4x4 has RPN 1710, and those springs have 1 less leaf. It would make selecting a spring a lot easier if ll we had to do was compare that RPN number.
Currently running air lift shocks at about 45 psi, and I don't like how they screw up the handling. Lots of bounce and roll. would rather have stiffer springs.


Thanks,
Perry

 

[doorgunner]

The air shocks need to be separated-----each shock needs it's own air line...

don't use ONE air valve to fill BOTH shocks because.....

it will cause them to do all kinds of squirrelly things---

one wheel hits a bump---air pressure from that shock is forced into the other shock doubling it's pressure while the first shock loses all it's pressure....causing body roll/bottoming out/etc.

Fix that first...then you'll have a better idea about the leaf situation....

trust me....i am a doorgunner

 

[Mac]

Have no idea of what those numbers translate to, shop manual just shows the letters that show up on your door tag. Best I've got is a list of all the specs for a 2000, lists the dimensions and rating of the difference springs. The spec's for the 2010 are the same.
Dave

 

[pjtoledo]

thanks & thanks

I'll get rid of that T.