I had to dig in my memory and in the box with old parts. Back then I was helped with partnumbers by LITP:
I will update with parts numbers and will check with a dealer to see what is available. Front crossed over from old part number to new. The backs weren't as clear. I note on the micro-fiche was the only thing I could find without searching thru pages of old part numbers that are in no order.
1962
complete front kit RK95 476-21
front cup kit (rubber parts) RK95 476-12
complete rear kit FJ40 475-11
rear cup kit FJ40 476-21
1963
front complete kit 04473-36010
front cup kit 04475-36010
rear complete kit 04473-60010
rear cup kit 04475-60010
Front numbers converted from 62 to 63
The rear numbers I didn't find a conversion but it looks like just before making the 62 micro-fiche they added a handwritten note for the rear full kit to the 63 rear full kit part number.
These rear numbers for the '62 are different then yours old red
The dealer wasn't able to help me with these numbers. I found a note of the partnumbers I have used: For the rear I bought 4x 04473-60010 on ebay. Not OEM but aftermarket. Tokico IIRC. I also found some of the old cups in the old parts box. Those are definetely 1". These sets seems still available at that e-bayshop GWS rareparts:
http://www.ebay.com/itm/Toyota-04473-60010-60-70-LandCruiser-FJ40-Rr-W-Cyl-Kits-/380332676044.
For the front I contacted L&L landcruisers, a landcruiser specialist in Holland. They sent me a kit 04905-35042 and that one kit was complete for the front axle, for all four cylinders. I couldn't find old parts of the front cylinders. On Internet I found this partnr. refers to 1 1/8" kits. On toyodiy I find this kit refers to late 40's. Anyway we used it and it fitted.
When I look on toyodiy for a '69 and I google the partnr. of a rear cylinder it pops up as a 1" also. So I think you might be wrong in your rear cylinders for the '64, or the the '64 is the odd one, or they may use different rear cylinders for UTE's and "shorties"...
hmmm. Now that I am writing this I'm thinking that makes sense. The UTE's regularly have more load on the rear and you might want more brake force there. Which can be achieved with larger cylinders. Toyodiy tells different partnrs. for FJ40's and FJ43-45-55 (in '69) but can't tell the size from the numbers. (I don't have the 65 partsbook here now).
Anyway, I found these old pics of our brake assemblies: