Brake parts

'73 Harvester Boy

'73 Harvester Boy

Member
Hi there
HELP!!
Having extreme difficulty with locating front brake shoe's and wheel cylinders for my 73 Harvester 258 RWD, So do I go down the route of a disc conversion?? If so what's available, do I just replace the drums for disc's, do I need to upgrade with a sevo? Etc. These are all good questions 🤔, I've got what I think are standard 15inch steel rims, any help would be great
Many Thanks for reading and getting bored
Cheers Steve
 
Welcome
You came to the right place. The kind folks at Ih Parts America, who run this forum, also has their parts counter in Grass Valley, CA. In the drop down menu, click the online store. If you can't find what you need, call them up.

73 harvester what?
A scout, a pickup, a travelall? Would help if you were a little more specific
 
The important info for you to provide in terms of your brake parts question is 1973 IH 1110 4x2 pickup. Basically year, make and model. Further, if you were to measure the width of your shoe linings in inches front and rear, that information would be helpful as well. Shoes and wheel cylinders should not be impossible to source, although you are overseas, so that might be throwing a wrench in the works. Some brake drums can be difficult if not impossible to source for these rigs depending on the model and specific equipment.
 
Hi fella
Many thanks for the brief always stuff for the memory bank, first pickup I've acquired only been used to the Mustangs and Pontiacs before still life's a learng curve hey. Got the shoes sorted but front cylinders are no where so if the shoes don't fix the problem then I'll have to go down the route of disc conversion. Reading on the part's list for the conversion it mentions wheel upgrade, would this mean an increase in wheel size or just offset, 15 inch are on there now.
Cheers Steve
 
Are the front cylinders in rebuildable condition? About all you have to know is the size to order kits. Bad cylinders can be bored out and sleeved. Unless you want disks. ;-)
 
Yeah, what condition are the wheel cylinders in when you peel off the dust boots? Are there signs of fluid leakage? The thing with going from drum brakes to disk brakes is caliper clearance. Many stock wheels for drum brake systems will not clear disc brake calipers. So it isn't that you have to change your wheel lug pattern or go up to a 16" wheel or anything crazy like that. It's just that you need 15" wheels with your lug pattern that are designed to clear the calipers.
 
FDChappie said:
Are the front cylinders in rebuildable condition? About all you have to know is the size to order kits. Bad cylinders can be bored out and sleeved. Unless you want disks. ;-)
Click to expand...
Cylinders look nice and dry when I get the drums off again to do the shoes I'll check, thanks for the help
Ttfn Steve
 
Scoutboy74 said:
Yeah, what condition are the wheel cylinders in when you peel off the dust boots? Are there signs of fluid leakage? The thing with going from drum brakes to disk brakes is caliper clearance. Many stock wheels for drum brake systems will not clear disc brake calipers. So it isn't that you have to change your wheel lug pattern or go up to a 16" wheel or anything crazy like that. It's just that you need 15" wheels with your lug pattern that are designed to clear the calipers.
Click to expand...
Hi fella
No sign of leakage there just lots of dust, thanks for the heads up on the rims, I'll keep you posted how I get on when all the parts arrive in a couple of weeks
Ttfn Steve
 
That dust, if orange would be rust. Those cylinders are stupid easy to take apart for thorough inspection and cleaning once off the rig. If the pistons aren't froze stuck in the bore and if the bores aren't pitted, and if the rubber bits aren't brittle and deteriorated, then a good cleaning might just make Bob your uncle, or second cousin once removed.
 
Hi there
'73 IH 1110 4x2 pickup, I've ordered the disc conversion now from MJ👍 gonna be a few weeks before I get them just need to check on wheel spacing.
I've measured the original 15inch steelies and the back space is 3 1/2 inches so if I go to 4inch back space does anyone know if this is sufficient or do I need wider? Any help would be much appreciated. I've attached some information about the wheels to assist you with the crap I'm babbling on about😅
Cheers Steve
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Personally, if you're going to replace the rims (and I presume tyres) I'd go with 16 x 7 rims and a 265/70-16 tire. That's what I have on my '71 Travelette and they fit the wheel wells real nice and are just a bit wider than stock. You'll also be assured of more than adequate clearance on the calipers.

I helped a guy trying to fit some drum rims to a disk vehicle and IIRC the back spacing was not necessarily the issue, it was the shape of the rim. So, if you're going to go with the same size rims, I'd keep the back spacing the same.
 
Agree with Chappie. Should look for similar to stock backspace and avoid wheel spacers. I can't recall if your wheel lug pattern dimensions have been conclusively established. I don't seem them within this thread, anyway. For example though, if they happen to be a 5 by 5.5 inch spacing, there were a multitude of other vehicles with that same pattern that had front disk brakes from the mid-70's up into the late 80's/early 90's. Fullsize Ford Bronco/F-150 being the most common. I know in terms of Scout II vehicles, wheels from those Ford donors among others will clear the stock disk brake calipers with ease. But alas, your 1110 is clearly not a Scout and you're going with an aftermarket conversion kit, so I dunno there.
 
Hi mate
I called IH Parts and spoke to Michael he seems to think that I need a back space of 3 3/4inches on a 15 inch rim, I have measured my 15inch rims and only have 3 1/2 so thinking of going to a 4inch back space still sticking with 15inch rims, I'm now thinking of going to wait till the conversion comes, fit it and decide after rather than guessing and spending a hole load of wonga on the wrong rims and rubber. Oh yes they are 5x5.5 and the disc conversion should be in with them by the end of the month before shipping to me in UK, so just playing a waiting game now before I have to rob a bank😂
Many thanks for your input much appreciated
Cheers Steve
 
3.75" back spacing sounds about right to me, too. 4" wouldn't be that big of a jump from there. Sounds like a good plan.
 
Cheers pal, spoke to Michael late on Thursday all my goodies for the brakes are on the way and should have them Wednesday so I'll let you know how I get on. Many thanks for your help
Ttfn Steve
 
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