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View Full Version : full size bronco shackle


tnt
09-07-2008, 05:28 PM
does anyone have photos of rear shackle set up on a full size bronco,race set up class 3 legal. thanks TIM

straightaxle
09-08-2008, 08:40 AM
Here's one way of doing it. Autofab uses the stock shackle. If it is set up just right, they claim you can get 17" of travel without the stock shackle binding up or going over center.

Yikes
09-08-2008, 09:24 AM
Tim, Solo does a set-up similar to Moss'. They relocate the rear hanger and run a 2.5" longer shackle. They may have pictures on their site. I built 1" longer shackles that fit the factory location, because the stock units seemed too short at full bump and I was concerned about breaking the main leaf. If you want pics of them, just let me know.

straightaxle
09-08-2008, 09:43 AM
I believe ours are 7" long, as was recommended by National when we first built the truck. I am skeptical on the use of stock shackles for the exact reasons Yikes mentioned (good talking to you at Primm, by the way). When you change springs or get a new set (and you will!), the exact position of the stock hanger and shackle goes out the window.

tnt
09-08-2008, 11:14 AM
Tim, Solo does a set-up similar to Moss'. They relocate the rear hanger and run a 2.5" longer shackle. They may have pictures on their site. I built 1" longer shackles that fit the factory location, because the stock units seemed too short at full bump and I was concerned about breaking the main leaf. If you want pics of them, just let me know.

if you could that would be great,moss has the monster truck set up my ride is not that extreme,Im running 2.5x12 fox up front with a2.5 stop and 4 10in fox in the rear with two xtra leafs,I like the way the front works the back is not.

straightaxle
09-08-2008, 07:45 PM
moss has the monster truck set up my ride is not that extreme,

The actual and true term we prefer is "farmer built". Our policy is, after it breaks twice, it gets "farmer engineered", which essentially means you use probably 6 times as much hot rolled steel to build a copy of the old part.......

Dave won't deny it, it looks like something only a mother could love, but by god we have never had an issue with them! By the way, we use a replaceable standard oilite bushing. Urethane will not hold up well enough to the side loads. Might even consider using a greasable needle bearing in the future, even though it would probably require a seal.

Dave G
09-08-2008, 08:02 PM
... It looks like something only a mother could love...

ouch!!!!

Brokenbronco
09-08-2008, 08:28 PM
The actual and true term we prefer is "farmer built". Our policy is, after it breaks twice, it gets "farmer engineered", which essentially means you use probably 6 times as much hot rolled steel to build a copy of the old part.......


What, no bailing wire???

straightaxle
09-10-2008, 06:04 PM
ouch!!!!


Just when I think you never turn on your computer.............

Function, baby, function!

Yikes
09-10-2008, 06:30 PM
Sorry for the delay, but here's a couple of shots of my po-dunk shackles.

http://www.supermotors.net/getfile/649341/fullsize/img_0801.jpg

Next to a factory shackle.
http://www.supermotors.net/getfile/649342/fullsize/img_0802.jpg

http://www.supermotors.net/getfile/649343/fullsize/img_0803.jpg

http://www.supermotors.net/getfile/649344/fullsize/img_0804.jpg

Here you can see the clearance with the bed.
http://www.supermotors.net/getfile/670566/fullsize/img_1034.jpg

http://www.supermotors.net/getfile/670567/fullsize/img_1035.jpg

http://www.supermotors.net/getfile/670568/fullsize/img_1036.jpg

tnt
09-10-2008, 09:00 PM
thats some fine work, perfect fit those arnt stock springs I think I may need to do somthing diffrent,maybe flip the shackle I need two more inches on the ride hight do you think that will work?

Yikes
09-10-2008, 09:15 PM
Typically, shackle flips yield 3-4" of increased height. I think you may have to fab up custom hangers for just 2, because you certainly wouldn't want shorter shackles.

straightaxle
09-11-2008, 07:09 AM
Yike's shackles are very similar to ours. We ended up going to solid bushings instead of the plastic, the plastic would get sloppy quickly in the race application. The best way to adjust your ride height is to re-arch the springs. Sometimes you can get away doing it with a press, Deaver has motorized roller that they can run the leaves through, otherwise a big hammer with a short handle and a piece of heavy channel.

Yikes
09-11-2008, 08:26 AM
Don, you spoke of a standard Oilite bushing. Is that something that can be purchased from Mcmaster or Grainger? Do you use grease fittings?

Dave G
09-11-2008, 01:33 PM
Don, you spoke of a standard Oilite bushing. Is that something that can be purchased from Mcmaster or Grainger? Do you use grease fittings?
The last couple of sets came from the local ACE hardware, so I'd imagine both McM or Grainger would have them.

In general, oilite bushings are designed to be run without additional lube. In theory, grease will shorten the life of an oilite bushing. Essentially the grease combines with minute particles generated as the bushing wears, and becomes an abrasive.

Yikes
09-11-2008, 03:52 PM
In general, oilite bushings are designed to be run without additional lube....

Yeah. My bad. :o I know that. I work with oilite quite a bit with some of my older machine slides.