I was just thinking the same thing!

Awesome work man. Hope to see those in person one day ..

I have an extra set of stock fronts I think. Let me take a look and PM you. If not it’s these right

https://wheelersoffroad.com/i-254903...erbumpkit.html

I can make sure you get a set if I’m included in the beta test program. Happy to cover all shipping costs.

Hey Sleepy, Yup those are the right ones.

If you can just get me some dimensions is all I need. I dont need the actual superbumps. Mainly I'm looking for some rough dimensions just so I have something to start with design wise. If someone could even chime in with what they think the dimensions should be is enough to get started.

I have my factory front bump stops as a reference. I'm not sure how much taller they need to be. I might just pull my front strut and max the suspension stroke to see what the height needs to be

LOL, Thank you Squishmitten. Soon my friend, Once I get a few more trail runs on my set I'll make an extra set for you. I had a look at your build thread, very nice truck. I'm a local so hit me up for trail runs.

I am interested to see where this goes for the front bump stops and would also be interested in a set if they end up working better than the super bumps or beta testing if you need another guy. I think the key with the fronts is to basically have them provide a more progressive secondary bump while still relying on one stock bump stop to provide the upper limit of travel. I believe that the wheelers bumps are twice as long as the stock ones.

One issue I know they have though is that because of how the suspension cycles and pushes on them it causes the stud to rip out of the superbumps. Will that issue be solved by using the rubber instead of foam?

Exactly. Think of the new bump not as a bump but more of a cushion. That's why it should be made from fairly soft material IMO. Let it help the shock by absorbing some energy. That would be perfect for coming off rocks hard. The other factory bump would only be touched in super hard hits.

It looks like the superbumps use a glue to hold the bump to the washer. I wonder if it's possible to actually mold the washer inside the bump. If that's possible it should eliminate any chance of the the bond material breaking from the bump.

I'm kinda shocked that no one here knows that Polyurethane bump stops have been available for the 3rd gen 4Runner for years. Energy suspension makes just about everything for 3rd gens.

Front: 8.9103 Front Bump Stops - Toyota 4Runner - 8.9103

Rear: 8.9104 Rear Bump Stops - Toyota 4Runner - 8.9104


Here are the rears installed. My testing efforts so far have shown that they definitely work. Haven't yet installed the front set yet, but I expect similar results.

Whats the length of those energy suspension rears?

The ones I made are 5" in length. I believe the energy suspension bump stops are at 3". Let me know when you get a chance

Yes, I would have a washer inside the casting itself. My rear bump stop has a large washer cast in it now. I do not believe we will have any separation issues, but if we do I can design around that.

As far as the shock absorbing qualities. I completely understand. I was thinking about designing a bump stop that is conical in shape made from a 40 durometer rubber. The shape itself will naturally lend to a progressive dampening affect and the 40 durometer has plenty of elongation to take continuous hits on the trail.

Should be a good starting point. If it sucks, I will try again.

I’m running the Superbumps in the rear and love them but I’d be interested to see what comes of the front design. I agree that the Superbumps look to be too tall/firm for the front. Almost seems as if they were 1/2 the height they’d work great!

I spoke with Steven @ wheelers about dims before I purchased mine. This info is straight from them.

2 7/8” free height
5/8” compressed
3 1/4” base diameter

I like your thought process of how the bump shape is contoured to make contact with the rear axle similar to the stock hard rubber bumps. It’d be cool to see something done for the front end with a slight taper that makes contact only when the A arm is at least 1/2 way through it’s travel and more parallel in relation to the ground, if that makes sense.. I’d be interested in a set for the front!

Printing out my first prototype for the front bump stop. I'm planning on it acting as more as damper as some of you guys have suggested. If you have any more ideas let me know.

I read some threads about various complaints with the Timbrens and wheeler bump stops and I am doing my best to address the known problems. Such as

Angled base for better contact.

cast in place large washer to prevent any separation.

shorter overall height of the bump stop. Maybe I'll end up making two different heights to fit different lifts.

I like the look of these bump stops. Nice job!

I'm currently running the Wheelers Super Bumps up front and I love them so far. Been running them for 2 years maybe? What I like about them is the fact that they are tall and super soft. Making a nice progressive feel. A lot cheaper than bypasses to achieve the similar idea.
Wheeler's makes two styles of their Superbumps. Soft for the front and firm for the rear. A couple things that I could see improving upon is the glued on washer design. I've gone through a set already due to the bump stop pulling off the washer. So if there is a way to mold the washer into the bump stop without losing any up travel, then that would be a huge plus. I also like the idea of making them a little firmer but conical to really make it more progressive as it compresses. Another thing that could be improved upon is the angle. The Superbumps are designed for a 2nd gen Tacoma/4th gen 4Runner, so they don't compress vertically enough on our rigs. They compress at a slight angle causing more stress on the bump stop and eventually causing the bump stop to pull off the glued on washer.

I'm running the Superbumps up front also like @theesotericone said. Superbumps on the front of the LCA and stock bump on the rear as a final limit on compression. I would be interested to see what you come up with for front bumps.

The Superbumps are very soft, but like it has been mentioned they don't line up well with our frames. I know @Blackdawg modified his to fit his first gen Tacoma better. Here's what he did:
https://www.tacomaworld.com/threads/...#post-13568798

If you do decide to make something for the front don't forget the Tacoma has the same front suspension so you could market the product to those guys too.