dbl clutching?

Thanks that helps, alot.

 

Dbl clutching done correctly, puts almost zero wear on the clutch and or the gears. Only put a small amount of pressure on the clutch pedal, so as to just "break the plates," and as in floating the gears, pretend an egg is under the accelerator pedal, and when your ground speed (drive shaft rpms) is aligned with your engine speed (rpms) for the next gear, the shift lever will just fall into place.. The main shaft gear, and the countershaft gear, are now meshing, with zero stress or wear...

By just breaking the clutch plates, any misstep on the shift will slip the plates (allows a weak link), verses putting undue stress and wear on the transmission gears, shafts and bearings..... There is no give on a shift without the clutch, and all the torque and weight of the rig on a misshift, now is thrust violently on those gears, shafts and bearings in the transmission; or the engine crank/bearings, U-joints, rear gears, or the tires required to slip. How much to overhaul any of these now days?

There is a "clutch brake" when the clutch pedal is pushed in to stop the countershaft in the transmission from turning when the truck is at a stop, so it will not grind when trying to put it into gear. By pushing the clutch pedal in to far on a shift, one is wearing the brake out every shift, and actually trying to stop the truck as well.

Now you know why some trucks are nearly impossible to shift into gear at a stop without grinding or offering a really bad clunking sound. The clutch brake is worn out or needs adjusting. Want to really get a rise out of a crotchety mechanic, ask to have your clutch break adjusted......lol

I learned to shift without a clutch, as that is what the owner and co-driver wanted me to do. Then, the next job I got, the owner wanted all his trucks dbl clutched. I enjoy both.

Most drivers that float gears, laugh about having to "round the gears off to fit your hand." Sad, but true, as this is exactly what is taking place down there in that transmission case. Need some extra metal shavings floating around......