g56

[CraneGuy]

Can I shift a g56 with out the clutch with out

Hurting it

Thanks Travis

 

[Nyoest]

No. .

 

[Hoefler]

Shifting a synchronized transmission is the worst thing you can do. It will burn out the synchronizers.

 

[KLauber]

Sure you can. It will only fall into gear when the speed of the transmission rotation and the engine speed are matched. The clutch is used to start the vehicle or in reverse. Its easy to do on a flat road but often wont work when on a grade and the driveline is under a load. As an over the road trucker from the 70s and 80s, I used the speed shift method on the Roadranger transmissions that were used in our trucks hauling furniture (10 spd and 13 spd). It even worked in my VW beetle and Vanagon. You can tell when you miss that window though, cause it will just grind. Most of the time I use the clutch anyway cause you're guaranteed to complete the shift!

Ken

 

[GOTSOOT]

Mr. Lauber!!! the transmission that Crane guy has is not made to shift W/O a clutch. the gears are cut completely different. large trucks trannys have a double main shaft that allows for this kind of shifting along with a different cut gear. why take the chance and bust off a piece of a gear ,when you think you "GOT" it. I too have 3 million miles over the road,and I never goti nto the habit of no clutch. I beleive tha Crane guy needs an auto. transmission

 

[CraneGuy]

I just was asking If could shift with out the clutch
I drive trucks and cranes that are not Synchronized all day long

 

[KLauber]

Yes and no seems to be the answer. Like I said you can if you want to. Miss the shift and the teeth say no no, just rev the engine and it falls into place. The only drawback is the long throw and the somewhat narrow band, but I do the occasional speed shifting when bored. Just not an everyday rowing habit. This guy shows how simple it is:

‪dodge cummins floating a few gears‬‏ - YouTube

Ken

 

[KLauber]

Soot!

Mr. Lauber!!! the transmission that Crane guy has is not made to shift W/O a clutch. the gears are cut completely different. large trucks trannys have a double main shaft that allows for this kind of shifting along with a different cut gear. why take the chance and bust off a piece of a gear ,when you think you "GOT" it. I too have 3 million miles over the road,and I never goti nto the habit of no clutch. I beleive tha Crane guy needs an auto. transmission

Whats up Soot? Send me a PM so we can set up an Upstate TDR meet!



Ken

 

[EDankievitch]

You can do anything you want as long as your paying the repair bill.....

 

[ewcmr2]

the gears are cut completely different. large trucks trannys have a double main shaft that allows for this kind of shifting along with a different cut gear. why take the chance and bust off a piece of a gear

Really? The G56 moves gears around to shift?

Every transmission I've looked inside had the gears constantly meshed/fixed to it's partner. Shifting moves a collar to lock different gears to the shaft while the rest freewheel.

 

[Mhannink]

i shift every manual trans i drive without the clutch. it wont hurt the synchros if you do it right. my truck has 230k and shifts smooth as butter with or without the clutch and ive never had a hiccup with it.

 

[Mhannink]

in fact my mom has a 06 with the g56 and i shift without the clutch in it my only problem is the trans is tight only 50k on it and so it takes some practice. the big thing is no matter how you shift dont force into gear wait for it to want to slide in with only slight pressure.

 

[JHumphries]

So, if I'm driving along, accelerating, in 3rd gear let's say, and lightly lift off of the throttle, slip the transmission out of gear and release the pressure on the shifter. Wait a half-of-a-second to let the transmission coast down, then, just before the right rpm/speed combination, put light pressure on the shifter to let it slip into 4th, while easing into the accelerator, so as not to shock the driveline.
If you only apply pressure for that short tenth of a second, the synchro is doing no more work than clutched shifting. It is probably doing less work. (less speed differential)
Just a thought.

 

[RVTRKN]

To each his own, I use my clutch, just my opinion.

 

[Mhannink]

So, if I'm driving along, accelerating, in 3rd gear let's say, and lightly lift off of the throttle, slip the transmission out of gear and release the pressure on the shifter. Wait a half-of-a-second to let the transmission coast down, then, just before the right rpm/speed combination, put light pressure on the shifter to let it slip into 4th, while easing into the accelerator, so as not to shock the driveline.

If you only apply pressure for that short tenth of a second, the synchro is doing no more work than clutched shifting. It is probably doing less work. (less speed differential)

Just a thought.

i think you more or less have the idea. light pressure slip through the gears no worries been doing it on every manual ive ever owned and trans problems are the one thing i have not had. i shift it just like im shifting a big truck trans without the clutch its really the same thing. let the trans find the right time to slip in and out. use light pressure for encouragement and itll be fine.



also i think you are correct that the synchro isnt doing anymore work then if you used the clutch.

 

[KLauber]

At 92K, my trans is still tight as the day it was shipped!!

Ken

 

[Nyoest]

Spin a basket full off wet laundry at arms length. Then take three pair of wet jeans out and spin it. Same deal in the transmission, no clutch and it all stays spinning and tries to acomidate shifting. Add the clutch and it just got a whole lot easier to do.

If you want to buy parts all the time by all means keep shifting w/o the clutch. It will eventually bite you.

 

[RVTRKN]

I chose to use the clutch because the learning curve is a lot greater than the Freightliner I drove for a very short time. Even though the official policy had double clutching as a requirement, I was taught and drove it not using the clutch. But with my NV5600 and the G56 its a lot harder to get it in all gears with out grinding one or another gear not using the clutch. Seeing how these transmissions were designed to use the clutch, I just accepted the concept, and thats the way its been for me.

 

[KLauber]

I chose to use the clutch because the learning curve is a lot greater than the Freightliner I drove for a very short time. Even though the official policy had double clutching as a requirement, I was taught and drove it not using the clutch. But with my NV5600 and the G56 its a lot harder to get it in all gears with out grinding one or another gear not using the clutch. Seeing how these transmissions were designed to use the clutch, I just accepted the concept, and thats the way its been for me.

Yep, its just every now and then you can slide in to gear without the left leg. I was driving on 441 South one evening (1987?) and pulling away from a red light I clutched from 2nd to 3rd and the clutch pedal went 'ping' and stayed on the floor. No problem, the 9 speed Roadranger was easy to shift and I eased into the TSA on I-20. It was about 1AM so there was no traffic so I ran a few red lights... . broken spring was fixed in about 15 mins.