Chevy with a Detroit, and twin sticks!

[Blazin]

http://www.youtube.com/watch?v=E0o1o5W_f6o&feature=related

[bmaier]

that is some sweet shiftin. i got confused though...how do you know when to shift and which shifter to shift?

[Stewart G Griffin]

It is a little confusing;  It appears that the longer stick is the main trans, while the shorter stick is the auxillary trans.  The aux trans is sort of like having a 2-speed rear diff.  So really, in this case, the aux stick could be left in high all the time and you would only have to mess with the longer main stick since we are not dealing with a lot of weight and we have 400lbs torque.

Or the aux could be left in low, then we go thru 1-4 on the main trans and only shift the aux trans into high when we get into top cruising gear?

[joesgarage71]

Ya hes doing it right. Thats a truck drivers truck! I don't really see his left foot move. Hes good, hitting the sweet spot on every shift.
  Kool truck

[Blazin]

He is splitting the gears. He doesn't split the ones that would make no difference by shifting one to hi, the other to low, or visa versa.

[zieg85]

Really been toying with http://www.high-impact.net/transmission_and_gear/rangeroverdrive.htm for my 85, basically the same.

[smitty77]

I once ran shotgun with a guy driving an old Mack R-model with a quadbox, and I tell ya it gets real interesting downshifting with a load on.  The "wrap your arm through the wheel and shift with two hands" trick was amazing.  The guy in that vid knows how to shift for sure.....

[Blazin]

They have some sweet stuff.

[79K20]

I once ran shotgun with a guy driving an old Mack R-model with a quadbox, and I tell ya it gets real interesting downshifting with a load on.  The "wrap your arm through the wheel and shift with two hands" trick was amazing.  The guy in that vid knows how to shift for sure.....

Roger that. I once "tried" to drive a Mack dual-shifter quadbox... It wasn't pretty. Lots of grinding and lurching. Then the guy showed my how it was supposed to be driven, truly an art form if you ask me. Those guys have talent.

http://www.youtube.com/watch?v=9KhPcDMGRxw&feature=related

Good thing they built 'em tuff back then, so they could handle amateurs like myself without fragging little chunks of gear tooth everywhere.

[friendlytruck]

Cool semi power i think wood work in a 18Wheeler?

[Just-speed]

WOW!   Sweet power plant to have in a nicer truck.  Great video

[smitty77]

I once ran shotgun with a guy driving an old Mack R-model with a quadbox, and I tell ya it gets real interesting downshifting with a load on.  The "wrap your arm through the wheel and shift with two hands" trick was amazing.  The guy in that vid knows how to shift for sure.....

Roger that. I once "tried" to drive a Mack dual-shifter quadbox... It wasn't pretty. Lots of grinding and lurching. Then the guy showed my how it was supposed to be driven, truly an art form if you ask me. Those guys have talent.

http://www.youtube.com/watch?v=9KhPcDMGRxw&feature=related

Good thing they built 'em tuff back then, so they could handle amateurs like myself without fragging little chunks of gear tooth everywhere.

Thanks for the link.  I'd love to see most of today's CDL drivers try to operate a rig like that.

We have a guy that works for us (he's in his 70s) who resisted for 10 years switching from his trusty 76 Mack R-model to the newer CH series.  Finally they made him do it by taking his old steed off the road.  When I asked him what he thought of his "new" ride, a 2006 CH Mack:  "It's nice to finally have AC and air-ride suspension.  And it feels like it has double the power, which is good because I haven't figured out how to downshift the thing!  I hate those new-fangled air-shift transmissions.  I like the feel of a mechanical shift."  He's since figured it out, but it was funny at the time.

[friendlytruck]

thats Right cus my dad can shift it but the newer ones, just aren't made the same. the favorite ones are is 1 FLD freightliner 2 purple eater and the worst is a Volvo.