I have two part numbers I'd like to figure out which tractors they were originally on. They are P/N 4B2957 and 4B3025. The Foley Cat dealer in Wichita was able to identify them as part of a governor control assembly but not which tractor they were on. They are both part of a welded up throttle control assembly on a Diesel 75, but it's not at all like the original throttle control in the parts book. Thanks for any help.