Front Bumpstops - OK per rules?

[WheelinJR]

So I'm eyeballing changes to make to the Jeep if we repair it for the 1000.

One thing that seems to be a big issue is that the side to side axle movement is significant enough that the spring rubs the bumpstop at full droop on one side and the other side at full stuff. As of now, one of my bumpstops has absolutely no foot left on it at all, except for a couple of mm of material.

So the big question is, how do you deal with this?

 

[chris_amrein]

I had this problem with my Jeepspeed too. It sort of self-clearances and it was kind of a wear-item for me. Keep in mind the actual point of contact that the aluminum makes at bump is relatively small (maybe 3/4") so I wouldn't worry too much about it. You could try turning them down in a lathe to create more clearance.

FWIW I ran stock pivot short arms on my old car so I also had wear on the front as well because of the radical cycling motion.

 

[Loose_Nuts_Enterprises]

Change the steering to a cross over set up, and raise the draglink attachment at the knuckle as much as possible. Change the track bar mount on the axle to keep them parallel and as long as possible. The flatter the track bar is at ride height, the less side to side movement you will get throughout the travel range. The stock style steering sucks...watch the video over on RDZ of your car going through the braking bumps, and look at what your alignment is doing. That's got to be harder on parts, and scrubbing speed when your wheels don't stay pointed forward.

-Dan

 

[XJWOLF]

Link to video? I tried searching over there and couldn't find it.

 

[Loose_Nuts_Enterprises]

http://www.race-dezert.com/forum/showthread.php/96771-BITD-V2R-VIDEO-Trucks-Jeeps-etc...

 

[WheelinJR]

We'll have to start looking into that. I'm going to be running a Vanco brake kit and I'm not quite sure how we'll make a crossover system work with that, but now that I see panhards are open, that makes this much easier.

 

[Loose_Nuts_Enterprises]

Maybe look into something like this from Teraflex. I have never used this, so I can't vouch for it's quality...

Should work with a stock replacement brake kit.

From their site:
High Steer Knuckle


SKU: 4828490
The TeraFlex Dana 30 High Steer Knuckle replaces the outer knuckle on the passenger’s side with a new high steer knuckle.

Note: The stock OEM tie rod ends will not work in place of TeraFlex’s stock-taper 1-ton tie rod end.

 

[WheelinJR]

Unfortunately, that won't work. The brake system I'm using has its own knuckle.

 

[cal]

Unfortunately, that won't work. The brake system I'm using has its own knuckle.

Vanco can and will build you a big brake kit using a teraflex, wj or toys by troy knuckle.

You tell them what you need and it will be built. I just recently helped a guy out with some Toys by Troy knuckles that were modified (by MR Blaine, who built the kit) to run Vanco big brakes and a Warn hub kit.

 

[WheelinJR]

I just talked to Vanco, said they could machine a Teraflex knuckle but they do them in batches and they just send a batch off so I'm about a week late. So that'd be months out.

He recommended trying out something like the Off-Road Only setup. Might look into that route.

 

[kcjeep6]

I run Vanco brakes, Warn hub conversion with the Off-road only steering and love it, the XJ handles very well. I use my rig as a rock crawler, DD, tow rig and go fast when I can! They only down side I notice is some push in low speed sharp turns in parking lots due to poor Ackerman angle

 

[FatCity Ryan]

Chris is right. The pads on the bumps are wear items. I wouldn't fix it if isn't broken.

 

[WheelinJR]

Chris is right. The pads on the bumps are wear items. I wouldn't fix it if isn't broken.

They're way beyond worn. Driver side no longer has a foot, lol. The big problem is that they're still bottoming out. We added more travel and upped the pressure, but I'm assuming that the way the guys that drove the last leg faded them out pretty fast.

 

[crazyjim]

Bumps bottom out on Jeepspeeds... Mine did on my prerunner quite a bit.

 

[SoCal Off-Road]

My brother and i ran the 1719 jeepspeed for the last 6-7 years. we were always having problems with our bupstops either rubbing on the coils or bouncing us off the jumps and whoops. owe ended up taking out the hydro bumps and just running a 1/3" bump pad instead. having a 3 bypass shock allowed us to adjust the shock to be the bump and we couldnt believe how well the jeep felt while jumping. before we took them out we were bracing for impact on every jump and large bump. after we were actually enjoying the ride.

 

[WheelinJR]

The hydros worked great for me. We hit two big jumps, couldn't even feel the car land...was like landing on a pillow. I think we'll just repair the bump and run again and see what happens.