Just finished putting transmission shafts and new bearings back in. Next will be shifting fork assembly. I decided to take the fork assembly out of my 620 parts tractor and go back with
the parts with the least amount of wear from both. The Two short shafts from 620 were the same part number with less wear. Ill use them. The long shaft was different 630 shaft had
detent hole cut a little different also had 2 notches cut underneath. 630 had a different type of spring loaded latch the 620 didn't have. What were these upgrades suppose to fix. Looks
like more things could go wrong with upgrades to me. Could i use which ever system is the tightest or stay with newer shaft? Shifting forks look most complicated to reassemble. Hope it
goes better than im expecting.
the parts with the least amount of wear from both. The Two short shafts from 620 were the same part number with less wear. Ill use them. The long shaft was different 630 shaft had
detent hole cut a little different also had 2 notches cut underneath. 630 had a different type of spring loaded latch the 620 didn't have. What were these upgrades suppose to fix. Looks
like more things could go wrong with upgrades to me. Could i use which ever system is the tightest or stay with newer shaft? Shifting forks look most complicated to reassemble. Hope it
goes better than im expecting.