Ok, so the biggest 5100 rear for my silverado says it’s for a 4” rear lift. The rough country blocks give the rear a 4 3/4 lift. The 5100’s are ...

Ok, so the biggest 5100 rear for my silverado says it’s for a 4” rear lift. The rough country blocks give the rear a 4 3/4 lift. The 5100’s are 3 inches shorter extended and the same collapsed measurements. Anyone have any experience with this particular set up

Billythekid86 wrote:Ok, so the biggest 5100 rear for my silverado says it’s for a 4” rear lift. The rough country blocks give the rear a 4 3/4 lift. The 5100’s are 3 inches shorter extended and the same collapsed measurements. Anyone have any experience with this particular set up

Take a look at the 5160s. They make those that'll work with a 6" lift

I will do that, I looked at the 5125’s but they are a lot stiffer and I needed to buy new bushings and sleeves and they were two inches longer collapses than what rough country recommends.

5160’s have a 31” shock but for the price to not gain much and have to change bushings and sleeves it’s not really worth it. I have seen other people say they ran the 5100’s with their 6” kits but looking at the two shocks side by side worries me

I am running with RCX 6" blocks in the back, plus a Zone AAL. I have the 5100's made for 4-6" of lift...not sure what part number though, but you can look it up on their website.

As for the shocks RCX sends with that kit, I asked about the specs before I got the kit, and this is what they told me..

Q: What are the specs, as in the measurements for collapsed and expanded length on these shocks? The ones for 4"-6" of lift?
06/27/17
A: This shock is E30/C17.47.


So as long as you get a shock that is within those numbers, you should be fine. I am at just about full extension now, and I just need to add in a set of extenders I've had lying around..

I did the same for my kit, not sure what year your truck is but the biggest 5100 they make for 071/2 to 13 is for 2-4” of rear lift. The rough country shocks I was sent with the kit are 19 in collapsed and 33” extended

I have a 2006, but I don't know if the rear shocks would mount any differently on a new truck, in the rear at least. My rears are just a simple bolt on each end, top and bottom.

So I would look to see if they mount the same, and if they do, don't limit yourself to just your model year when searching. And there are other companies that make just as good or better than Bilstein...

Also, did you measure the actual travel you need, or are you just going off of stated numbers from parts that come with the kit? If you pull one rear shock, then let that side droop all of the way down, measure from end to end, and then you'll know the exact numbers you need to find, and don't forget if you find a shock that is close enough, a shock extender can help prevent the shock from bottoming out if the axle drops too far...but if you think you'd go full droop often at any corner, you should be looking at high end components.