I just bought this truck to pull my rv, it runs great, but the previous owner didn't tell me about the rear brake problems, i was told just vacuum booster needed to be replaced, well I did that, i have never worked on a truck this size, i had to buy some new tools to work with the larger sized truck, anyway, i had to get a 1" pin less impact gun, while trying to get the 1 1/2" lug nuts off they all broke, i know on the small 1960s 3/4 and 1 ton ford's you have to pull axle shaft to remove the drums, this truck has a split axle and 12 bolts on the drive line side of axle to get to differential, anyone knowing anything about this truck, axle, drum brakes assembly and how I can remove the drums, i have a bad wheel cylinder in the driver's side drum, it looks like there is two cylinders per drum .
Any help please

 

You should purchase a 1966 factory service manual because it will have all the information about repairing your brake set up. I work on class 7/8 trucks with air brakes but the hub/drum set up is the same. You need to remove the 8 bolts on the axle shaft flange and might have to smack the face of the axle shaft with a small sledge or air hammer to break the gasket seal. Once the axle shaft is removed you can access the wheel bearing nut to remove the drum/hub assembly. I'm not positive on what size lug nuts/studs you need but they are "Budd" type so there are left and right hand threads for each side of the truck. Napa Auto parts carries large truck parts so they should be able the help you when you have it all apart and see what you need. But you will need the 1966 factory service manual for all the torque specs. when pre-loading your wheel bearings etc. I would post a copy of the pages from the shop manual but I just put all of my manuals/parts books in storage last week. Hopefully somebody else can post something quickly so I don't have to dig them out.

 

Thank you so much, i have had no luck in finding a manual, my next try is the library

 

Ebay has the Canadian (Mercury/Ford Truck) complete shop manual. It is an original printing so the pictures are much better than the photocopied reproduction manuals. The Canadian version come as one very thick book, while the U.S. version is split between 4 volumes. For a little more than $50, it is a good investment. I know because I have copies of 1965 and 1966 (both U.S. and Canadian versions). http://www.ebay.com/itm/1966-Ford-and-Mercury-Truck-Shop-Service-Manual-Canadian-Original-Pickup-H-D-66/311279754362?_trksid=p2045573.c100033.m2042&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D29159%26meid%3D7df16489203347b5aa54430867d5211a%26pid%3D100033%26rk%3D1%26rkt%3D4%26sd%3D311279754362

 

Thank YOU again, I Will Look On EBay For Canadian Manuel

 

I am guessing you broke them all, because they are LH threads. My 73 SCS still had the LH threads on the driver side rear. After I couldn't budge the second one I tried, I had to look real close and see the L on the stud. Course you usually only make that mistake once,,
good luck with brakes,,, NAPA usually has whatever I need, or can direct me to who does.

 

In order to get the correct rear brake parts, either from NAPA or NOS (all are obsolete), you will need to know the size of the rear brake shoes.

Pic: Column left, lower. As you can see, there is more than one size.

And, you unknowingly typed this thread in the wrong forum. 1961/66 forum is mainly for F100/350's. Thread belongs in the LARGE TRUCK forum where you'll get more help.

I just asked a moderator to move your thread there.

 

I feel really stupid not looking that close at the threads, I've never heard of reverse threads on anything but propane.

 

Ok thank you, all I saw was a 350 and 450 forum

 

I got the tapperd things out with shaft, does any one know if the plate with the wheel bolt studs is part of drum with the hub all I see is a seal

 

Click on the third one, "Service Manual", "standard hub drive axle".

Page 27. Drum is separate:
https://www.google.com/webhp?sourcei...xploded%20view


Note this is a general item, if you know your axle model number, you can search for that specific axle. Eaton has billions of PDFs on the net with views of everything.

Also, I looked at one of your other pictures and it looked like you had this thing blocked up on the drum and hub. You need to have it blocked up well inboard of where you are working, and IMO, you need to have the frame blocked up in addition to the axle. If this thing falls off the blocking, they will simply cover the whole mess and mark it as your grave.

 

I have it well blocked up, the stand under hub is for at night, just one more thing to support it if anything fails

 

Moved to proper forum...

 

You all have been so helpful to me, I wanted to say thank you, i am about done, parts were slow in coming, and some were expensive, i am now seating the outside wheel bearings fleet said 200 and then 400 lbs of tourqe, i would like to know if anyone knows if I can just get it close, my wrench only goes to 300 lbs , and I am looking for lug nut torque specifications it's a 6 lug nut wheel

 

1) 1" impact gun with air compressor to match
2) Really high quality 1" breaker bar and socket
3) 5' of pipe
4) 500 ft/lb torque wrench


Some or all......