Hi, I am also looking to add power brakes to my 1970 F250, possibly front disc as well. I understand for the FAQ written by Ford Six which years will work for the donor parts for the drum to disc swap. Would it also be the same years for the booster/mc/pedal setup donor?

My other question concerns my 1967 F 250 which has Armstrong steering.
This truck is actually being driven daily by my daughter and her arms, from this manual steering beast, will soon dwarf my 22" pythons Am I correct to assume a 67-72 F100 or F250 donor truck will supply all I need to remedy the changes I want to make to both trucks?

The 70 has PS but no PB and the 67 has PB but no PS.

Also, any ideas on where I can find a 352/360/390 rebuildable motor for a decent price would be great. These are projects I am hoping to work on with my kids, and we all want to try and do as much as possible for ourselves.

 

I can't help a lot with the PS questions, other than to suggest finding a donor truck from a 67-72and taking ALL the parts related to the PS setup: pump, brackets, all the pulleys, steering column (due to different column lengths between manual and power steering) , PS gearbox, etc. If it relates to steering, grab it.
As far as the brakes go, all you would really need from the donor would be the PB booster brackets. Or you can get new repro ones here (about 2/3 down the page on the right side): Flashback F100's - New Products************ This page has new parts that have just come on the market*
You don't have to change pedal assemblies or anything else.
You could grab the booster and MC for cores, but I would really recommend getting new ones. For the disc brake conversion, all you really need to get from the donor are the dust shields and anchor brackets, the two pieces in this pic:


You need to grab these because they are not reproduced. The calipers, hub/rotor assembly, and proportioning valve are available new. If the donor is a late 72 (after serial number M80,001) or 73-79, you should get new calipers for your 70. Reason being that the later calipers are internally different than 69-early 72 calipers. You will have an easier time remembering what to buy parts for if you have the correct calipers for your truck. Also, the mounting bushings in the ears of the anchor brackets changed from the early calipers to the later ones, so get the correct ones for your donor. For proportioning valve you have two options: you can go with the stock location on the inside of the drivers side frame rail, or if your donor has the bracket that mounts on top of the steering gear box, you can grab that bracket and put the valve there, which is what I did. If you do that you'll need to make or have made new brake lines.
Here are a couple of threads that may help you:
The FORDification.com Forums • View topic - Started the disc brake conversion
The FORDification.com Forums • View topic - #50: 1972 F250 8,100lb GVW Disc Brakes (Tons of Photos)

I heartily recommend swapping over to discs. Frodo (my 69 F250CS) stops so much better now, it's unbelievable! And it's really not a hard conversion to do.

 

Looks like your 70 is 4X2. Is the 67 also? 4x4 caliper mounts would be different. It'd almost be worth taking the PB stuff off one,put it on the other, then getting the whole smear off a donor for that truck. This way all stuff on that truck would be off the same year vehicle. Less confusion buying parts in the future.

 

Power steering: You do not want to use 1967/68 or 1969 F250 2WD parts (before serial number D96,001) as these trucks used Bendix P/S.

Ford/Saginaw P/S: 1969 F250 2WD from serial number D96,001, 1970/79 F250 2WD
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Dual piston caliper disc brakes were optional for 1968/72 F250 2WD.

The thing is, FoMoCo had problems with the calipers, so there were 5 possible calipers used on these trucks.

Due to auto parts store replacements, parts swapping from junkyards...by now finding a donor that has matching right and left calipers may be problematic.

Suggest using 1973/79 F250 2WD parts instead...but one has to be careful, because some 1973/79 F250's have single piston calipers, some have dual piston calipers as it depends on the GVW

Pic: 1968/72 boondoggle: Calipers are basic number 2B120 in parts list.

 

Yes, sorry...all 3 trucks I have a part in are 2wd...71, 70 and 67.

So if I understand this correctly I look for a 73-79 250 for rotor/hub, caliper(dual piston), caliper attachment plate, backing plate, banjo bolts, master cyl, booster, vaccuum tree for intake. Core out booster, mc and calipers for new units, resurface rotors, replace wheel bearings bleed and test?

Pulling and replacing spindles is no longer the way to go?

Were any parts from the E series vans braking system compatable with the 250's?


Thanks.

 

Don't forget the Brake Pressure Differential Valve that some peeps call a proportioning valve.

Get everything from one truck, better yet, buy a donor. This way, if you need replacements, you'll know what the application is.

Econoline parts, for the most part, will not work.

Be aware that FoMoCo changed the P/S pump in 1978, has a plastic reservoir. P/S pressure hose attaches to pump with a qwik connect fitting.

1965/77 pumps have a steel reservoir, P/S pressure hose threads on.

Since FE engines were cancelled at the end of the 1976 model run, there are no mounting brackets that'll fit the plastic reservoir pump which is a different shape than steel reservoir pump.

 

Sounds pretty straight forward and not too difficult. If for now I just added the booster and m/c, I would still use the original prop valve, and only change that when I change the drums to discs, yes?

It is not like I am having any brake problems, just that when this is 100% roadworthy and trustworthy, I will probably put a 5th wheel hitch on and the wife and I will do some travelling, and I was wanting a bit better braking power.

Should I consider, while having this all apart, replacing the kingpins/brass bushings and replace all the steering mech pieces?

Again, thank you for letting me pick your brain.

 

I added the 8" booster & M/C from a 1970 that had all drums to my all drum 71 4wd brakes and worked great. No more knee pain from pushing the B-pedal about 50% better.

I've since than switched out the front axle with a disc brakes stops about the same tho
But switched out axel due to t had finding inner parts for it.

If you go with the larger type 73-79 booster you'll need to use the matching Brake & clutch pedals 73-79 yrs.
orich

 

Thanks Orich, for the extra info.

Perhaps I can get lucky and find a 67-72 donor or scrapper that has already converted.

Naw...I never have that kind of luck