I finally did the disc brake conversion this week and wanted to let people know what I found. First of all the article here was very helpful. I have a 1966 F100 and used the following parts from a 1977 F100 with manual brakes. I was lucky to be the first person on this truck at the local Pick-N-Pull, on 1/2 day no less.

Both I-Beams with spindles, rotors, calipers, no brake hoses.
I took the passenger side frame bracket that holds the brake line to brake hose from this truck and another F150 I found. The drivers side has a rivit holding it in but the passenger has two bolts.
I also got the proportioning valve and bracket.

Cost $112.00 (I thought this was a steal)

From Kragen I purchased the following parts, one note on Kragen is if you go online and print out the part and then go to the store, they will match their online price which is quite significant. For example the store price for one wheel seal is 5.99 and the online price is .89 cents.

1977 F100 Master cylinder with manual brakes, includes push rod
1977 F100 right and left brake boses and the wheel seals and one rotor to replace one that had a groove and a stoplight switch

Master cylinder Part #101667 14.99 plus 5.00 core
Right brake hose Part #4536748 14.99
Left brake hose Part #4536749 14.99
Quart brake fluid 4.99
Stoplight switch Part #SL31181 3.89
Disc Rotor Part #6032RGS 32.99
2 wheel seals Part #C19743 1.78
Cost $95.93 with taxes

Second trip to Pick-N-Pull when I decided to not grind down the spindles,
I got the centerlink, tie rod ends and pitman arm off a 1976 F100. The 1977 was gone.

Cost $51.00

I had to go to Napa and get hardlines and various adapters to take the connectors on the proportioning valve down to the 3/16 lines. I also used 1/4 for the master cylinder to the proportioning valve for the front. I don't know why they have big nuts for the small lines, but Napa had all the lines and adapters.

Cost $67.00

I had the machine shop turn one rotor, the other had a serious groove.

Cost $20.00

The actual installation was very smooth and well worth the effort. The alignment was pretty dead on. The alignment cost was $60.00

So all said and done my total cost was $405.93

I had a piece of 1 inch flat steel that I bent into a 90 degree and drilled two holes, one for the bolt that previously held the brake pedal stop and one hole for the new stoplight switch. Very easy conversion.

I cut exactly 3/4 of an inch out of the brake pedal push rod that came with the master cylinder. Then I welded it back up. The pedal is right on, same height as clutch pedal.

I removed the original brake hose brackets and used the two passenger side brackets from the 1977 donors. I bolted the proportioning valve to the cross member below the master cylinder where it was on the 1977.

So thanks to all the previous owners who have done this as it made my job alot easier.

Jim

 

Good job. How does she handle? Does she stop straight?

 

She handles great. A very good investment, stops straight and steers better as the ball joint that connects to the pitman was shot on the old linkage.


Jim

 

Jim
That sounded like a lot of work I ,m glad it worked out!! there is a web site in Cal www.classic performance.com that sells a complete kit all new that bolts on to original I beams dust shields and all master cyl, porportioning valve,booster.loaded calipers,check it out.Its not cheap a $1000 but it is complete and the master cylinder is old corvette style cheers Paddy 0 !!

 

Yeah I looked at various packages, but I can go to any parts store, Kragen, Napa, etc.. and get any part for the brakes now as a 1977 F100 is pretty easy to get brake components for it.

Jim