What speed to downshift 10 speed transmission?

It’s really more of an RPM thing than a speed thing provided you’re not a total retard and aren’t trying to shift from first to 8th

 

Sounds like you don't have a very good instructor don't know why he keeps yelling at you if your changing gears and there going in, why should he make a big fuss about it sounds like he's nit picking to me.

 

Most fleet spec'd trucks that formula works just fine. Or remember this, a 10 speed is roughly 400 rpm between gears. 5th to 6th in my exp has been a pretty quick shift compared to the rest

 

I just got out of school , we trained in peterbilts with 10 speed eaton, there were 3 trucks all pretty much identical but all felt a little different. I find it interesting that none of our trainers talked about your speedometer speed and shifting. It was all about engine speed. We were taught there were ~350-400rpm between gears and were taught to double clutch and upshift at 1500rpm. To single down, we were taught to take get the rpms down to 1000 clutch out of gear and rev up to 1500 rpm and clutch into lower gear. For double downshifts they taught us to get rpms down to ~800 then rev up to 1500rpm. It worked great for me, but it was a little tricky when you missed a gear especially going up or down hill to get back into gear, then it helps to have the speed references memorized to get back into gear. Our trainers were great and never yelled at us, if they did, i might have to stop and talk to them and let them know it does nothing but make things worse if you yell, theres already enough pressure, starting out we all want to learn as quickly as possible.

 

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