Just me being stubborn.
and worrying that steering will be the one area that can down the rig in a painful way on road trips.
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and worrying that steering will be the one area that can down the rig in a painful way on road trips.
67StingrayJ
Well-known member
- Joined
- Nov 25, 2022
- Member Number
- 5793
- Messages
- 136
Awesome build. 100% inspiring me to get off my butt.
What's it called when you have the shock mounted to the trailing arms like that?
What's it called when you have the shock mounted to the trailing arms like that?
I guess I need to update this thread. I have been working on the Jeep a lot over the past few weeks. I wanted to have my tie rod / assist cylinder behind the front axle to help protect it. So I needed custom steer arms and.. to make them I wanted a cnc plasma. I built a small plasma table following JDsGarage plans.
Started cutting and building the arms. I was hoping for good ackerman angle and fit into the build.
I'm using 2010 Supoerduty knuckles machined by Busted Knuckle Offroad.
Started cutting and building the arms. I was hoping for good ackerman angle and fit into the build.
I'm using 2010 Supoerduty knuckles machined by Busted Knuckle Offroad.
Attachments
At one point I installed the hood and grill to see how the panels would like up. To my surprise they were perfect .
Right about this time I received my shocks Fox 2.5" x 12" travel. The shock will clear the hood a full bump.
But unfortunately the tie rod contacted the chassis before the shocks would bottom out. I think I tacked on mounts and moved things around for several days before I decided to cut off the front of the chassis and raise it 1.5".
Now the hood is still happy but the rubber mounts at the edges of the grill got almost completely eliminated. Everything lines up so that's a big blessing. Engine was set in to see how an upper link would fit as some point.
Right about this time I received my shocks Fox 2.5" x 12" travel. The shock will clear the hood a full bump.
But unfortunately the tie rod contacted the chassis before the shocks would bottom out. I think I tacked on mounts and moved things around for several days before I decided to cut off the front of the chassis and raise it 1.5".
Now the hood is still happy but the rubber mounts at the edges of the grill got almost completely eliminated. Everything lines up so that's a big blessing. Engine was set in to see how an upper link would fit as some point.
Right here is as it sits right now. There were a few compromises made.
Tack bar mount is as high as it can be while matching the drag link angle. Chassis side mount is barely squeezed between the box and coilover.
Track bar and drag link angle match but the track bar is 1" shorter. They could match perfect the steering box was inside the chassis rail or if I move the chassis mount out one more inch. I my do the latter if I have clearance.
79 Bronco steering box is going to live inside the grill shell with the headlight.
What hurts most is my steer arm dimensions result in a 7" stroke on the assist cylinder. I was planning to use an 8" stroke and wanted the cylinder to be part of the steering stops. I may redesign these. I wanted the cylinder and knuckles to all hit the stops simultaneously and new hit the limits of the steering box. The flip side to this is I would have faster steering lock to lock with a shorter stroke cylinder.
My thinking is the sector shaft will only see the max force of the steering pump pressure and to forces from the wheels, at full lock anyway.
Tack bar mount is as high as it can be while matching the drag link angle. Chassis side mount is barely squeezed between the box and coilover.
Track bar and drag link angle match but the track bar is 1" shorter. They could match perfect the steering box was inside the chassis rail or if I move the chassis mount out one more inch. I my do the latter if I have clearance.
79 Bronco steering box is going to live inside the grill shell with the headlight.
What hurts most is my steer arm dimensions result in a 7" stroke on the assist cylinder. I was planning to use an 8" stroke and wanted the cylinder to be part of the steering stops. I may redesign these. I wanted the cylinder and knuckles to all hit the stops simultaneously and new hit the limits of the steering box. The flip side to this is I would have faster steering lock to lock with a shorter stroke cylinder.
My thinking is the sector shaft will only see the max force of the steering pump pressure and to forces from the wheels, at full lock anyway.
NDCjeepsmith
Red Skull Member
Looking nice. Can you not throw a spacer in the ram to limit it to 7" so you still retain that as the steer stops?
Absolutely, It just was disappointing to see it not measure 8" as planned. WAY better that being over for sure.
FLUX
@fluxoffroad
- Joined
- Sep 28, 2022
- Member Number
- 5584
- Messages
- 87
Very cool build! Building the frame opens up a ton of options for what goes where.Thinking something like this for front upper coilover mounts and rear trailing arms.
I have not built any trailing arms. Hopefully someone that has will chime in with numbers. From looking at this image the coilover mount looks a little close to the axle side.
What are your thoughts for bracing the coil over mount. Seems like if you angle the lines that are parallel to the shock you could run bracing behind it to the frame and box in the top portion.
Yes my shock is mounted much closer to the axle than most trailing arms. Most are mounted in a .7-.8 ratio to the wheel travel.
If the shock was mounted in the middle of the arm it would be a .5 ratio.
I am limited to how far forward I put the upper mount. I still get the benefit of more that 12" of wheel travel from a 12" shock and still have room for the exhaust to the rear.
The front coilover mounts will have gussets on the inside and a brace over the engine between the two towers.
If the shock was mounted in the middle of the arm it would be a .5 ratio.
I am limited to how far forward I put the upper mount. I still get the benefit of more that 12" of wheel travel from a 12" shock and still have room for the exhaust to the rear.
The front coilover mounts will have gussets on the inside and a brace over the engine between the two towers.
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