HD Video How-to: OTC 7394 Hub Puller for Jeep and Truck Axle
Vintage Jeep 4x4s and AMC/Jeep CJ models with the AMC Model 20 rear axle require a special
hub puller to remove the rear wheel hubs. Many vintage cars and trucks require this type puller. OTC makes the 7394
Hub Puller for this task. This HD video demonstrates how to remove rear brake drums and hubs as
an assembly. The OTC puller and 6574-1 adapter plate provide a solution that helps prevent parts damage
and personal injury!
Vintage axles have tapered axle shafts. Jeep, Ford, Chrysler,
Studebaker, I-H and others used keyed axle hubs. The wheel hub seats tightly on the axle shaft. The only
way to properly remove these hubs is with a quality tool set like the OTC 7394 Hub Puller.
U.S.A.-made with impact tool grade steel, this puller can be used with its winged wrench and
a hammer or an impact socket and air impact wrench.
At left is the wing wrench approach. Hub arms secure, the wing attaches to
the hex head of the threaded stem. Hammer blows on the wing edges will rotate the stem. At right, a sharp
rap with the hammer will relieve tension created by the tightened stem. The idea is to "rap" sharply on
the stem end; do not beat on the stem! Too much hammer force on the stem end can damage the axle
shaft bearing or cause other kinds of damage to the axle.
The axle shaft at left was ruined by someone who did not have the proper
puller tool! After being beaten to the point of ruin, the hub still remained firmly attached to the tapered
axle shaft. At right is the correct way to remove the hub and brake drum, as seen in the HD video
At left, the OTC 6574-1 Universal Adapter Plate allows use of the OTC 7394
Hub Puller on smaller bolt circle wheel hubs. At right is the OTC 8034 socket for Chrysler and Dodge truck
ball joint removal and installation. Larger 2-9/64" square head ball joints require a tool like this special impact
grade, U.S.A. made socket. It you see a square head on a Chrysler ball-joint, it's threaded—do not press
The OTC 8034 socket fits larger Chrysler square-head ball
joints. The larger application is 2-9/16" square size and fits bigger and older Chrysler cars and Dodge truck
ball joints. There is also a smaller square size socket available from OTC for smaller Chrysler
At left is the control arm end with factory threads. When
removing and installing these ball joints, use the right tool, like this high quality, impact grade OTC 8034
socket. Make sure you have the right size socket(s) for the ball joints. Always use caution
when installing a ball joint—do not cross-thread the joint in the control arm threads! Torque the
ball joint to specification and make sure the joint seats properly.