Rear bilstein 5100 install

if anyone could provide the instructions on the install of the rear bilstein Part Number:24-186728 that would be greatly appreciated. I purchased mine off Amazon and did not come with the instructions. I don't really need the know how just basically which washer goes where. When I took my previous shocks off I noticed the bottom rubber bushing had a nipple on it along with the washer but the new ones don't have the distinct look. But I do know that these shocks are the ones for my truck. Basically it came with two rubber bushings, three washers one being black the other two alluminum color with the one that had a lip on it which I'm pretty sure is the on that goes in the bucket and obviously the nut for the top. Appreciate the help. Just want to make sure I have installed everything the right way and I have looked everywhere with no luck.

 

These are my old ones:



The new ones have the black washer on top, the 2 silver on the bottom (those are mounted below the frame, black washer, and bushing are mounted above the frame).

 

Ok so I was correct then. I mounted them as so from top to bottom, nut black washer then bushing on top. Below bucket was the silver washer with the little amount of lip on it, bushing and then the other silver washer? My next question would be how tight to tighten them. I know the torque specs say 20lbs but you get the same resistance until you bottom out the rubber bushings which I know it's not correct. So what I did was turn the nut so about a 1/4 of the threads are showing and about 1/4-1/2 of the bushing compressed. Am I correct on that part or should I loosen or tighten the nut at all. I just don't want the bushing being pinched to much nor to little. And I appreciate the relief of how the washers are supposed to go. I just guested on that part and luckily got it right. Well unless you say other wise in your response! Lol

 

Here's the currently installed pic for reference:



Note that the bushing is squashed to the point where it fills the diameter of the washer.

 

About how much of stud do you have sticking out? I know it will be different from truck to truck. I just it kind of odd that the stock washer had the little lip one the washer and bushing that went into the bottom off the bucket and the new Billy's didn't come that way. The top bottom washer had a small roll to it and the bushing was completely flat. Is that how yours was or did I get the wrong assembly equipment?

 

You were supplied with the right parts. If your old washers aren't corroded, use them if desired. They're probably better quality than the ones bilstein supplied. Your washer/bushing order is correct. Essentially you don't want the shock to walk around in the seat. Use common sense. Tighten the nut down till the bushing compresses some then give the shock a tug to check for tightness. That's it.

 

Thanks for the help. Last question did u end up using ur old washers and bushings or did you use the newly supplied ones?

 

I used the supplied ones, but kept the old if I needed them ever, they were in decent shape. I live in an area where the roads are salted during the winter and washers like that corrode.

 

Thanks for your help man. At least I have some piece of mind now!

 

Are they different sizes? I had mine installed and the rear passenger's boot keeps coming off and the driver side is way down.
any numbers or something to corroborate that they are installed properly?

 

I just installed a full set of 5100s this weekend. TW forums was an invaluable resource in getting this job done. There were a couple of questions that I had a hard time finding answers to, so I thought I'd share my experience installing the rear ones here. The rear 5100s came with washer kit B4-KT1-Z008A00, but no instructions on how to assemble. There are 3 washers and each one is different. I forgot to pay attention to how the bushings were installed when I removed the original shock. So I had to do some digging around to find the answer. Bilstein does not provide instructions and their website is useless. Hopefully these photos will help others that are doing this for the first time:

Full set of Bilstein 5100s ready to install:

Here's the Bilstein washer kit. Note that each washer is different....hmm

Here's how they are assembled on the shock (the top bushing, washer and nut go on top of the mounting bracket). This also shows that I accidentally bulled the boot off of the bushing. I really tried hard not to do this a second time because it was a PITA trying to put the boot back on that little bushing. I ended up pulling the boots off 3 times. Lesson learned: it is much easier to put the boot back in place after the shock is installed. Tiny bit of grease on the lip of the bushing can help too.

I had a hard time getting the lower bushing into the mount. I discovered that a little grease made this much easier:

Support the frame so the axle can drop down. Yea, I still have the sad 3 leaf Toyota OEM set. Waiting for Toyota to replace them before they break :-/

Tightening the top nut. Use a 5mm Allen wrench to keep the piston from spinning:

I'll post some of the front install lessons learned in the https://www.tacomaworld.com/threads/front-shock-install-without-spring-compressor.314290/ thread as soon as I can.

 

Subscribing

 

Nice. Thanks for the picture of the bushing, washer, nut order. (doing mine at the moment)

Edit: Done! Installation went great; I only needed to cut off the nut on one shock when the top stub broke off. Surprisingly, the OEM shocks with 276,000 miles on them still had a little life left in them, but nothing like the new Bilsteins. I thought the OEM shocks would have no gas in them and collapse but they rebounded slowly on their own when compressed and released on the garage floor.

 

Hmm. @HeadStrong Off-Road sent me a different bushing installation kit: B4-KT1-Z103A00, which doesn't have the black washer, and both silver washers are the same. Looks like I'll have to take it apart and replace.

 

Well, I installed mine wrong... bummer but at least its only been a day and i haven't gone off road yet.. time to jack her up again

Thanks for posting the pics OP

 

Disregard my previous post. Once I had them installed, head strong got back in touch with me a reassured me it was the right kit. No issues after 5 trails, and 6k Miles I’ve added since the lift.

 

Quick question - @hobiesan

So I believe that I have these washers & bushings oriented properly (thanks to this thread). My curiosity/question is this. For that washer that sits on top of the bushing directly under the rear shock mount (the middle silver one), there's a dimple on the top. Is the mounting hole/bracket on the truck shaped to accept that so it's sits flush & snug up in there?

 

Yes, that washer should fit nicely in the upper mount. There should have been a diagram on the hardware pouch or in the box the rears came in.

I can't say for certain, as mine used a different hardware kit where the rubber bushing goes directly against the underside of the upper shock mount. I did extensive research on this because I thought I might have the wrong parts. Turns out there are 2 different hardware kits, and the general consensus from everyone was: "just make sure you have rubber on both sides, and call it a day."

 

Hmmmmm....

Like above, there was no diagram included.

All of the diagrams I've found (for the kit included with the 5100's and even the OEM shocks) shows a retaining washer (#3 below) above the bushing under the shock mount.

https://parts.germaintoyotaofnaples...6__5992097/SUSPENSION-COMPONENTS/8512745.html

 

I normally install it like this only 2 washer top and bottom.