KrazeyOlDave 860 #1 Posted May 30, 2021 (edited) EDIT: OMG.... major rookie mistake I measured the I.D. of my ball knob and of course it’ll read 5/16...it’s a 5/16 drill size for 3/8 threads Hey fellas and gals, I went to purchase some ball knobs for a production job I’m doing and I’m getting mixed information. My 310-8 has 5/16-18 threads on the main shifter...my question is, does this vary from model to model? I honestly would have thought they would have been 3/8-16. If y’all wouldn’t mind, can ya confirm your tractor model and ball shifter thread size please? Edited May 30, 2021 by KrazeyOlDave 1 Share this post Link to post Share on other sites
ebinmaine 67,620 #2 Posted May 30, 2021 (edited) See above Dave edit. I. R. Idjitt too. All the models we've seen here range from early 60s to mid 80s. I don't recall ever seeing a different thread size. I also don't recall lots and lots of other things! 😂 @OldWorkHorse Steve has swapped shifters around. He could comment. Edited May 30, 2021 by ebinmaine 1 1 Share this post Link to post Share on other sites
KrazeyOlDave 860 #3 Posted May 30, 2021 3 minutes ago, ebinmaine said: Can confirm 5/16-18. All the models we've seen here range from early 60s to mid 80s. I don't recall ever seeing a different thread size. I also don't recall lots and lots of other things! 😂 @OldWorkHorse Steve has swapped shifters around. He could comment. Thank you! I’m in process of doing some neat stuff. Here’s a little sample...still fine tuning. IMG_1963.MOV 2 Share this post Link to post Share on other sites
OldWorkHorse 3,045 #4 Posted May 30, 2021 (edited) That's a good question, since the tranny didn't change much over the years you would think the thread on the knob wouldn't have either but the one I ordered and installed screwed on with a 3/8-16 thread. Edited May 30, 2021 by OldWorkHorse 2 Share this post Link to post Share on other sites
KrazeyOlDave 860 #5 Posted May 30, 2021 4 minutes ago, OldWorkHorse said: That's a good question, since the tranny didn't change much over the years you would think the thread on the knob wouldn't have either but the one I ordered and installed screwed on with a 3/8-16 thread. I just updated my original post up top, I’m an idiot 🤦🏼 3 Share this post Link to post Share on other sites
KrazeyOlDave 860 #6 Posted May 30, 2021 16 minutes ago, ebinmaine said: Can confirm 5/16-18. All the models we've seen here range from early 60s to mid 80s. I don't recall ever seeing a different thread size. I also don't recall lots and lots of other things! 😂 @OldWorkHorse Steve has swapped shifters around. He could comment. I made a “stupid”.... see my edit of original post. I guess I better layoff the peanut butter and jelly sandwich’s, it’s making my brain mushy 😂😂 1 Share this post Link to post Share on other sites
rjg854 11,387 #7 Posted May 30, 2021 Don't feel alone, we all seem to have those moments once in a while. 3 Share this post Link to post Share on other sites
KrazeyOlDave 860 #8 Posted May 30, 2021 Just now, rjg854 said: Don't feel alone, we all seem to have those moments once in a while. It’s seriously embarrassing.... I must go now and slam my pencil in a door! 😂 1 Share this post Link to post Share on other sites
ebinmaine 67,620 #9 Posted May 30, 2021 10 minutes ago, KrazeyOlDave said: I just updated my original post up top, I’m an idiot 🤦🏼 Fixed mine too. 1 Share this post Link to post Share on other sites
ebinmaine 67,620 #10 Posted May 30, 2021 6 minutes ago, rjg854 said: Don't feel alone, we all seem to have those moments once in a while. Some ((me)) more than others 1 Share this post Link to post Share on other sites
KrazeyOlDave 860 #11 Posted May 30, 2021 2 minutes ago, ebinmaine said: Some ((me)) more than others It’s always the simple stuff too, it seems like. I’m going back to bed 😂 3 Share this post Link to post Share on other sites
