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All Ford Front Disc Brake Conversion
15 Steps to Front Disc Brakes
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• Tie-Rods & Knuckles
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"I noticed the front left axle shaft was loose - it moved up and down the axle arm - while the right side didn't move at all. "
TRUCHA1
 Related Resources
• Bronco Restorations
• Suspensions
• Tech Tips

NOTE:
All torque specs are either from the 1973 Ford Truck shop manual or from a ’73-’79 Haynes Ford Pickup & Bronco manual, unless otherwise noted. You may want to double check the torque specs for your year.

Removal/Installation Procedure
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Note:
Pay close attention to how things come apart. This will help you with some of the reassembly. Also almost every part should be labeled with left (L) or right (R). Left and right are as if you where sitting in the Bronco. Be sure that you check that you’re on the correct side of the Bronco for the part you have in your hand. One last thing before you move one with the conversion, the knuckle stud configuration is setup so you can’t put the correct part on incorrectly. This will become clear during the assembly of the parts. Take your time and have fun!

1. Remove the existing wheel locks, drums/brake assembly, spindle and knuckle. I already had my tie-rod removed so I won’t cover that piece. This removal of the drums, etc. was done by the shop that rebuilt my axles so I’ll only be able to detail the pieces I know. Besides, taking it apart is the easy part – right? Remove everything to the right of the line (on both sides). See the picture just before step two.

a. The removal of the wheel locks should be self explanatory.

b. You will need a special socket to remove/install the wheal bearing locknut and the wheel bearing adjusting nut. I bought mine at Kragen. There is a lock-ring washer between these two nuts that has several holes in it. The wheel bearing adjusting nut has a small pin that goes into one of the holes of the retaining washer. You may or may not see this pin; it may have been pushed into the nut due to improper assembly. Once you have removed the wheel bearing adjusting nut you can use a small nail to push the pin out. This hardware should be interchangeable with the spindles from your donor vehicle and you can use them if you want.

c. I believe the wheel drum and backing plate will come off as one piece but I may be wrong. The axle shop did this part (I asked them to leave it off since I was going to disc brakes. If it doesn’t come off as one piece you’ll have to remove the drum and figure it out, sorry.

d. Remove the cotter pin from the upper ball joint and loosen the castle nut. I believe you can get a wrench on the lower ball joint’s nut without removing your axle; you may have to turn the yoke on the axle housing to give you a bit more room. Then to remove the steering knuckle use a hammer (dead blow, 5 lb sledge, etc) and hit the castle nut on the upper ball joint. This will, eventually, cause the steering knuckle to comes loose. Finish removing the nuts on the upper and lower ball joint while holding the steering knuckle so it doesn’t drop on the outer axle shaft.

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