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I am completely confused by all the different ways tire sizes are specified and can't figure out how to translate that to tires sold by local folks who have something to sell. I looked up specs on tractordata.com and got this: nternational Harvester 574 Tires Ag front 6.00-16 Ag rear 11-36 Ag front 5.50-16 7.50-16 Ag rear 13-30 14-30 11-32 12-38 What is on my tires currently is:16.9-28, On 15" rim, 14-28 Sorry for the lousy formatting guys, I can't seem to control the input here. On sale locally is a set of brand new tires and all he says is the size is: 7.50-16 I've asked him if there is any more info on the sidewall and am waiting for him to get home. Can someone explain to me what these numbers mean, which are significant to whether they will fit on my rims? It's a great deal and I can't really afford to go to the dealer for new ones. I'm really confused by Tractordata giving 7.50-16 as the measurement on the FRONT tire Thanks.

Thought I would share my experience with this hydraulic pump. This was my dad’s tractor bought new in ‘73. Ten years or so ago he had retired from farming, sold the equipment but kept the 464 for light duty work. Sometime after 2015 he changed the hydraulic filter. Unfortunately he installed the filter and bypass valve assembly backwards. The valve was in the filter but installed towards the MCV as opposed to out. This allowed unfiltered oil to the pump and may have restricted the flow. He would have used the tractor for bush hogging, wood splitting and light loader work. Dad passed, the tractor came home with me and I have used it occasionally. The hydraulics have been weak and slow for some time. I decided to get the filter changed to see if that helped and found the backwards filter. I was worried about the pump knowing it has been getting unfiltered oil for several years. Putting the filter in correctly seemed to help. It had better flow and made 2200 psi at the rear couplers. I was testing it out and heard a bang and then lost all hydraulic power. Steering, PTO, hitch. Upon disassembly, I found that the drive gear had sheared off the key on the pump. The pump would turn backwards but it locked up in the normal direction. Repairs will be a new pump and gear, seal kit for the MCV and new oil and filter. I plan to flush out the transmission as good as I can though the valve opening and filler hole. Any other suggestions?? This tractor has 6200 hours and was used pretty hard earlier in its life. Some pics for you guys.