Scott Mock's rear suspension

[carbuff]

Showing my ignorance here, but can someone explain this setup to me? I presume from these pictures that there is no 3rd or 4th link, just the 2 bars that are attaching at the stock mounting pads on the rear axle? I'm having a little bit of a hard time picturing how that will all work without the other pieces that mount there. Or from another perspective, if I do understand how it works, it seems like there would be a lot of forces at unusual angles relative to how a stock leaf setup would attach that would need reinforcing at the axle housing (which perhaps is what some of the small pieces are for).

Anyway, instead of asking lots of questions, is there another thread where there are pictures of this setup installed or described somewhere that I've missed?

Thanx!

[Devil Dog]

Originally Posted by carbuff

Showing my ignorance here, but can someone explain this setup to me? I presume from these pictures that there is no 3rd or 4th link, just the 2 bars that are attaching at the stock mounting pads on the rear axle? I'm having a little bit of a hard time picturing how that will all work without the other pieces that mount there. Or from another perspective, if I do understand how it works, it seems like there would be a lot of forces at unusual angles relative to how a stock leaf setup would attach that would need reinforcing at the axle housing (which perhaps is what some of the small pieces are for).

Anyway, instead of asking lots of questions, is there another thread where there are pictures of this setup installed or described somewhere that I've missed?

Thanx!

I think you nailed it... basically a ladder bar that bolts to the stock perches and the front leaf spring eye bolt.

[carbuff]

Originally Posted by O3HDF150

I think you nailed it... basically a ladder bar that bolts to the stock perches and the front leaf spring eye bolt.

Thanx. My understanding of a ladder bar is that there are 2 mount points per side though, one above and one below the axle. I believe the 2 points allow adjustment of pinion angle, but I'm not sure it would change the forces applied to the axle housing. Well, except that each point would primarily see forces in 1 direction, where in this case, the mount point will see forces in both accel and decel?

Interesting idea, and I'm surprised we haven't see it before (unless I just missed it) given that it would appear to greatly simplify the installation. What are the limitations of this setup then?

[wiedemab]

Unless I'm mistaken, it is essentially as version of the truck-arm type suspension.

[Track Junky]

Originally Posted by carbuff

Thanx. My understanding of a ladder bar is that there are 2 mount points per side though, one above and one below the axle. I believe the 2 points allow adjustment of pinion angle, but I'm not sure it would change the forces applied to the axle housing. Well, except that each point would primarily see forces in 1 direction, where in this case, the mount point will see forces in both accel and decel?

Interesting idea, and I'm surprised we haven't see it before (unless I just missed it) given that it would appear to greatly simplify the installation. What are the limitations of this setup then?

I'm thinking there needs to be a 3rd link attatched to the top of the diff housing

Originally Posted by wiedemab

Unless I'm mistaken, it is essentially as version of the truck-arm type suspension.

The truck arm set up typically is triangulated and mounts around the transmission mount area

[wiedemab]

Originally Posted by Track Junky

The truck arm set up typically is triangulated and mounts around the transmission mount area

I am familiar with a typical truck-arm setup, and this setup essentially constrains the motion of the rear axle in the same way as a truck arm (or ladder bar for that matter). The way they mount to the axle is more reminiscent of a truck-arm to me than a ladder bar.

Anyway, I was just trying to make another analogy for folks to visualize.

The "trail-arms" or whatever you want to call them will control both the forward motion and the rotational motion of the rear axle. They will be in tension/compression and also experience a bending moment.

[Rick D]

Hay Scott, What about ride hight?? I'm looking to go with drop leafs BUT I think I may have found a better idea!!

[coolwelder62]

The ride ht. is fully ajustable w/ajustable mount's and also using your coil over's.Check out Kevin's (Millertime179) build thread.He could go even lower w/the ride ht. on his camaro.If you look at the photo's Shannon posted you can see the lower shock mount's next to the lower control link's.

[wiedemab]

I hope my comments weren't taken as being related to the performance of the suspension. I have no reference to comment on that. I was just trying to explain the functionality of it and use some analogies to the truck arm etc. to help people visualize how these work.

I didn't make it to Nashville Goodguys, but my Dad told me the Kevin was getting after it in the AutoX.

[GrabberGT]

Originally Posted by carbuff

Thanx. My understanding of a ladder bar is that there are 2 mount points per side though, one above and one below the axle. I believe the 2 points allow adjustment of pinion angle.

Could the pinion angle simply not be adjustable. Seeing that it just bolts to the stock spring perches, this is most likely the case. Would the pinion angle have to be adjustable for a ladder bar?

Im far from being a suspension expert or even technically inclined enough to understand half there is to know about it, but I, like many others here have been lead to believe that a ladder bar suspension was a no-no for serious cornering. This obviously works on this car seeing the results... but how?