Rear up travel.

[Gumby]

GREAT!!!!!! feel so much better I think??????

 

[2012SCSVT]

No problem haha, the springs that are being cycled are deaver +4.5, I'll also be prep/cleaning them as the deaver finish is know for a limited life span...

The reason for the thread is just to show that there is up travel to be had if a small amount of work is done.

I'll be using a 18" shock to try to get the most of it.

Unpacked Deavers:

 

[TomDirt]

How much axle plunge did you measure? My Tacoma was 2wd, (no transfer case to shorten the driveshaft), and we were able to keep the one-piece custom shaft safe by using limit straps and a safety loop.

 

[2012SCSVT]

How much axle plunge did you measure? My Tacoma was 2wd, (no transfer case to shorten the driveshaft), and we were able to keep the one-piece custom shaft safe by using limit straps and a safety loop.

Good question but I haven't measured it. Once I get my new lower shock mounts on the axle I can bring it to full droop and check it out. I don't think I'll have much a difference for droop compared to a normal bypass rack with a 16" shock.

I did end reposition the upper mount location on the bypass rack for the new full bump location.

 

[TomDirt]

Doesn't it seem like the limit straps on a leaf spring suspension should be located at 45° behind the axle, instead of directly above it, like everybody does? That way it limits both driveshaft plunge & spring droop.

 

[MurderedOutSVT]

I just figured @2012SCSVT was making a stacked damascus billet out of the rear suspension

 

[downforce137]

Doesn't it seem like the limit straps on a leaf spring suspension should be located at 45° behind the axle, instead of directly above it, like everybody does? That way it limits both driveshaft plunge & spring droop.

id think it should be at a similar angle as the shocks, as thats what limit straps are really protecting.

 

[2012SCSVT]

I'm not sure I would have the answer for the proper angle of limit straps.

As long as they limit the suspension before the shocks top out at droop like @downforce137 pointed out

In relation when setting up the shocks and cycling the suspension, prior to setting the limit strap the drive system should not be out side the limits when the shock is at full droop.

What I am trying to spit out, in my opinion the full shock stroke should allow the suspension free movement with out issues.

The the strap protects it those limits set by the shock.

But... I don't have much of an argument on the topic just thoughts.

 

[TomDirt]

We set up the limit straps on the Tacoma by bolting the deavers onto a tube (to represent the axle), then using a floor jack under the tube to determine when the spring's resistance began. In other words, we eliminated the weight of the axle, then measured where the springs started flexing (and ignored the extra droop caused by the shackles rotating forward), since that's not "suspension travel", that's just shock travel without spring resistance. We measured 14" of usable, quality suspension travel, but I noticed a lot of guys claiming 17"-18" with the same setup, because they posted pictures withe those 10" long tubular shackles pointed forward instead of down.

 

[2012SCSVT]

Keep in mind that the resistance from springs are easily overpowered when the vehicle is in motion, while the hydraulic force of the shock is not.

Take for example if you had a truck suspended in air, suspension at full droop, and dropped it, with only springs.

It would blow through the spring resistance and smash on the ground.

If you did the same test, with only shocks and no springs, we will imagine the leafs where changed with a link to keep everything in place. But no spring. When the truck is dropped it would hit the ground and slowly decelerate until the shocks are bottomed out. It would then be stuck like this with no rebound but it would be a soft landing.

So just something to think about.

Back to the project, I have a sent some drawings into the laser shop for my lower shock mount and a frame gusset for the bypass rack, I'll report back when they are done being cut!