Early Bronco Body Lift
The first step is to check and eliminate any thing that might be limiting your present travel. There are several things which can hinder wheel travel. In the Early Bronco the first thing is often the emergency brake cable. A good way to check this is to simple jack up the rear of the vehicle by the frame and check to see if the cable becomes tight. You will also want to check the brake line from the axle to the frame. In a suspension lift you would be required to replace both these items. With a body lift you do not (unless you find that they limit travel). Make sure you check for these built-in limiting straps on the front as well as the rear.
While there are number of suspension tuning mods you can make to give increased travel, a body lift is one of the simplest. It may or may not give you additional travel; it depends on where your limitations are presently. It will give you more travel if your tires are hitting or rubbing your fenders.
Many trucks have a body lift, and the owner may not even be aware of it. A body lift will be visible where the body mounts to the frame. There are 8 contact points. From the factory there will be a rubber bushing at each contact point between the fram and body. The body lift should have the rubber mount and a graphite block of 1, 2 or 3 inches.
Installing a body lift should take you at least a 1/2 day. It is a big help to have an extra set of hands available. Many of those original body mount bolts will be rusted or frozen, so it is nice to have someone who can hold it from above while you are underneath. Some things to note during the installation:
Two common questions about body lifts are:
What is a Hockey Puck Lift? How do I do One?Leave the rubber bushings in on the bottom of the pucks. If you can, get yourself the poly bushings and upgrade, or get some new factory rubber and improve the originals. It is the most convenient time to do it.
You will now need hardware that is 1 inch longer (or however high the pucks are). Grade 5 is supplied with the body lift kits as it is comparable to the factory hardware. You probably don't need to spend the extra money on grade 8. That may be quite a bit more expensive and/or harder to find. However, it is suggested that you invest in nylock nuts. You also probably want to use some fender style (large) washers.
Is the Poly Compound Texture an Issue for Offroading?It's probably not that critical on a Bronco. Since the Bronco's frame is boxed, it doesn't flex nearly as much as the frames on most other vehicles. On a Jeep, a lot of the axle articulation comes from frame flex, while on a Bronco it's almost all in the suspension. Also, the body flexes with the frame. There are advantages to rubber c bushings though. The C bushings have to distort a lot when one tire is higher than the other. Some hard core flatfender guys like rubber spring and shock bushings too.