Digressive is digressive there is no more digressive than the other. Both the 4600 and 5100 series shocks utilize a digressive piston and are valved specific to the modification, unloaded torsion bars require less rebound valving and cranked torsions require more to control the spring preload.
For the 97 K3500 you would want the 4600 series
24-104050 - front
24-025683 – rear
We do not have an offering for the 97 1500 4wd with crank torsion bars.
Junior,
Here's an example of what confuses me;
https://www.morris4x4center.com/bilstein-5100-series-shock-absorber-bil-24186810.html
A 0-2.5" lift 5100 shock absorber. What is the difference between this and a 4600 for this application? The fact that my 3500 with a 454 calls for the same front shock as a 1500 with a V6 is cause for concern for me when it comes to valving.
Dustin
We do have offerings for 0-2” lift shocks however not for your trucks. The valving in the 4600 is good for the 4.3 1500 model as well as the 3500 with a 454. Valving dampens the spring and not the overall weight of the vehicle.
Junior,
Ahh, well that makes sense. I know a guy with an 05 and he has the 0-2" shocks so I figured they were made for mine too. I'm guessing in that application then that 4600, 0-2" 5100, and 4-6" 5100 would have the same valving? Thanks again.
Dustin
The lift shocks will be valved different due to the increased spring pre-load. The pre-load on the spring determines valving.
I have a problem with this. Same front shock for a 1/2 ton bar or a 1 ton bar, but different shock if that 1/2 ton bar is cranked or lifted and not cranked. At any rate, no 0-2" lift bars.