Shifting on the fly from 2nd to 3rd without grinding

[Urbish]

I watched this youtube video on how to double-clutch, shift on the fly from 4th to road gear on a Farmall M. I tried it with my cub this morning and it worked really good! This will undoubtedly save some wear and tear on my clutch while plowing snow (when I shift to 3rd to go back to the end of the driveway).

[LilCub]

That guy makes it look easy. My father in law taught me to drive a 12 speed big rig and he would yell at me if I even touched the clutch pedal. Funny thing when I went to get my cdl they fail you automatically for shifting without using the clutch now.

Edit: p.s. I grinded a lot of gears getting this down.

[John *.?-!.* cub owner]

I only drove an M a little, but have many, many hours on an H. I never needed to double shift going from 4th to 5th, just time it right to allow the gears to spin down and match. Shifting back from 5th to 4th when the hill got to steep for your load etc. I did need to double clutch though.

[Denny Clayton]

Notice the JD logo on the back of his shirt?

[havoc1482]

I don't see how this will have any significant wear reduction in the clutch. Sure you, in theory, will reduce disk friction wear because the speeds are more matched, but you're just doing the same amount of wear work to the TOB from pushing the clutch pedal anyway.

Shifting on the fly with load in tow on a hill can be deadly. I've seen too many tobacco trailers jack-knife and flip from novice drivers trying to downshift going up hill and missing the gear.

[Rabbit Holler Flash]

Double clutching isn't to reduce wear on clutch it allows engine speed and road speed to equalize to save gear crashing in transmission. Having the speeds equalized is really important at 215,000 lbs gross weight whether shifting up or down.

[Super A]

Never really tried it on smaller tractors--Cub, Super A, etc. I used to be good and could just shift the Super A from 3rd to 4th without grinding--takes practice. I've heard of guys double clutching to get the bigger non-synchronized tractors like a 806 or 1066 into fourth gear high range, especially pulling something heavy like a gravity wagon full of corn.

Wonder if anyone has ever tried to shift one on the fly without using the clutch at all like a big rig?

Al

[pickerandsinger]

Ah, the days of old….Double clutching was one of the first things I learned on a doodle bug as a kid….Drove a lot of non synchronized transmissions and it always came in handy both going up and down the gears ( which is two different procedures btw )…Becoming a lost art…..As a matter of fact a guy attempted to steal another fellows Mustang awhile back but the effort was foiled because the Mustang was a manual transmission and the guy couldn't drive it….LOL... …..Only had experience with auto transmissions…We have two cars and a truck, only auto trans is the truck….Both her car and mine are 6 speed manuals…Nice sounding tractor btw... Gearhead Dave

[Urbish]

I don't see how this will have any significant wear reduction in the clutch. Sure you, in theory, will reduce disk friction wear because the speeds are more matched, but you're just doing the same amount of wear work to the TOB from pushing the clutch pedal anyway.

Shifting on the fly with load in tow on a hill can be deadly. I've seen too many tobacco trailers jack-knife and flip from novice drivers trying to downshift going up hill and missing the gear.

I frequently stall or over-slip the clutch heating it up when trying to take off in 3rd in snow. The extra rolling resistance makes it a challenge. So I usually give up and just run in 2nd all the time, which can take forever when I'm plowing neighborhood driveways.

I don't tow and don't have any hills, but I understand what you are saying.

[cub&catman]

i used to haul haystacks with my brother in laws 560 d , and a stackmover. we would never use the clutch once we got rolling, shifting up or down. we coast down hills in neutral and when we would start to go up hill again just put a slight pressure in to 5th or 4 th and when the tractor hit the right rpms for the speed it would slip right into the gear, no grinding or missing ever.