workingdog
GOLD Star
I'm putting a fairly built dana 60 and 14 bolt under my '68 fj40 along with an Atlas with drops to match. The 40 already has a 6.0 liter LS and 4L80e. To do that, I'm going to SOA the front and 4 link the rear. This is my first really big project, so this is about learning, not demonstrating. Here is on fj60 axles and 37's (at Rubicon Springs).
So, what I'm sorting right now is locations and measurements.
Here's the front with OME springs flipped. Waiting on passenger side perch to attach to springs. I shortened the front hanger and set the rear hanger in the frame to reduce the SOA's overall lift.
Here are the parts for the rear and what I'm working on now.
I have a truss for this you can see lying on the floor I need to tack on for now.
I've been told that lower link should be about wheel diameter. I'm going to run 40" KO3s (or Milestars). So, that makes the lower link 39" forward of the axle
If I set the upper link at 80% of lower link (31 or 32") then it looks like they will want to land right about at the rear of the Atlas (waiting on adapter to mount to 4l80e). So, that looks about perfect. If I need to get them longer (to maintain pinion angle), then I can 'adjust' the crossmember into the right spot and fudge the support for the back of the Atlas.
I have a support structure that was built to protect that trans pan and transfer case and support the back of the trans (at the atlas adapter). I'm going to reuse that by cutting the mounts for trans (which I'll move to center), torque bar (don't need) and transfer case skid (which gets superseded by new skid plate).
I'm going to buy the Goat Built rear atlas support and build a new cross member at the back of the Atlas to both support the back of the atlas and for the upper link mounts. And then tie that cross member back to the support structure for a more complete skid than I had before.
I think I'm going to shoot for 104" wheelbase. Still not sure what I'm going to do in the rear for springs- we had to shorted the axles so much that I don't think I can run coilovers outside - plus I'd like to avoid punching a hole in the rear wheel wells. So, I'm thinking I might end up with Jeep springs and shocks. But if I can find some short coilover that will fit, I'd like to do that.
So, what I'm sorting right now is locations and measurements.
Here's the front with OME springs flipped. Waiting on passenger side perch to attach to springs. I shortened the front hanger and set the rear hanger in the frame to reduce the SOA's overall lift.
Here are the parts for the rear and what I'm working on now.
I have a truss for this you can see lying on the floor I need to tack on for now.
I've been told that lower link should be about wheel diameter. I'm going to run 40" KO3s (or Milestars). So, that makes the lower link 39" forward of the axle
If I set the upper link at 80% of lower link (31 or 32") then it looks like they will want to land right about at the rear of the Atlas (waiting on adapter to mount to 4l80e). So, that looks about perfect. If I need to get them longer (to maintain pinion angle), then I can 'adjust' the crossmember into the right spot and fudge the support for the back of the Atlas.
I have a support structure that was built to protect that trans pan and transfer case and support the back of the trans (at the atlas adapter). I'm going to reuse that by cutting the mounts for trans (which I'll move to center), torque bar (don't need) and transfer case skid (which gets superseded by new skid plate).
I'm going to buy the Goat Built rear atlas support and build a new cross member at the back of the Atlas to both support the back of the atlas and for the upper link mounts. And then tie that cross member back to the support structure for a more complete skid than I had before.
I think I'm going to shoot for 104" wheelbase. Still not sure what I'm going to do in the rear for springs- we had to shorted the axles so much that I don't think I can run coilovers outside - plus I'd like to avoid punching a hole in the rear wheel wells. So, I'm thinking I might end up with Jeep springs and shocks. But if I can find some short coilover that will fit, I'd like to do that.
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