Wheels: 40-59B, Magnesium, 6:00 x 6 tube type. 1-1/2" axles. Rated at 1750 lbs. TSO-C26b. Used on Beech 19, 23, 24R, Skipper, Piper Tomahawk, Skybolt, Starduster, RANS S-7, RV-10 and numerous other aircraft.
Brakes: 30-56B, TSO-26a. Used on Cessna 172 & 182, Grumman AA5A and B, Mooney M20's and other aircraft.
The wheels and brakes were bought new in the mid 1980's while I was still a practicing A&P for a homebuilt project and never used. See Aircraft Spruce catalog, page 267. $2500.00, plus shipping, as is.