Install New Control Arm Bushings in the Front Dana 30 Axle Upper Mounts
Tools You Will Need for the Installation
- Jack and Jack Stands
- Heavy Duty Socket Set
- Breaker Bar
- Hand Wrenches
- Penetrating Spray
How to Install the Upper Control Arm Bushings on a Dana 30 Axle
First you will need to liberally spray all the upper control arm bolts on the axle side with a penetrating spray and let it sit overnight. If you don't do this it may be very difficult to get the bolt off. Especially if you have never removed them before. A good rust blaster like PB Blaster works good.
Once that is done you can decide whether you want to jack the vehicle up or not. It is easier to access the upper control arm axle side mounts with the wheels off but that is up to you.
The upper control arm mounts look like ears sticking out of the axle. See the picture above. The first thing you want to do is remove the forked end of the upper control arm by removing the bolt.
Once that is done you can move the control arm out of the way, you do not need to remove the frame side bolt but you may want to loosen it do push the control arm up out of the way.
Now carefully remove the control arm bushing from the axle. You can use a rubber mallet or a block of wood to pound it out. BE VERY CAREFUL when removing these bushings because we need to re-use the metal sleeves so if you damage them you will have to go out and buy new ones.
Once the bushing assembly is removed we need to remove the vulcanized rubber bushing from the metal sleeve. There are two ways to do this. One way is to put the assembly in a vice, and use a drill and sharp bit to drill out the rubber until you can push it out. Or you can use a torch and burn it out. I have done it both ways and the drill is easier. Once you get a little bit of the rubber out you can pound the whole bushing out pretty easily.
Once you have just the metal sleeve make sure you clean it up and remove any sharp edges. Next apply a liberal amount of white lithium grease to the new bushing and install into the metal sleeve. Install the whole assembly back into the Dana 30 axle and pound in with a rubber mallet and block of wood.
Re-install the forked end of the control arm and tighten the control arm bolt. If you loosened the frame side bolt tighten that one now. If you removed the wheels re-attach and tighten the lug nuts properly.
Test drive the vehicle to make sure the bushings are mounted securely in the mounts. After 50 miles re-check the control arm bolts and tighten if needed.
Would You Ever Want to Own a Jeep?
Control Arm Facts
- A lot of Jeeps in the years of 1984-2014 have control arms.
- Jeep Cherokee XJ only has front control arms.
- Most control arms have bushings where the bolt goes through.
- Control arms help hold the axle in place.