that is for the 2 speed rear axle. I have one on my 60 Chev C70 out back. If you're really good, you can shift the 5 speed manual AND switch the 2 speed rear axle at the same time... 1st low, 1st high, 2nd low, 2nd high, 3rd low, 3rd high and so on... Most of the time, we just left the rear in low, started in second and did shift to high on the rear until up to speed...
Those were the days when drivers were operators, not just button pushers. A very long time ago when I was in high school,(I even graduated) I needed a autoshop project in my senior year. We had a 63 ford truck that had shucked the tranny (three on the tree boys) and had a very questionable axle in the back. If your mind is racing ahead of my typing, yep I did. I found a two speed rear and a 4 speed tranny in a 2 ton dump truck down the road. That old 292Y block never ran so good. It would pull 5,000rpm at 5 or 10mph - just don't even want to think about trying to shift it. It would throw the drive shaft out in a heart beat. Kids, what are ya going to do with em!
Larry and Debbie Kruzan
We never turn a corner without wondering in amazement at God's creation!
Actually it is relatively simple, especially compared to a 50s vintage Dodge Fire Truck we once had. 5 speed main transmission and a 3 speed auxillary tranny each on had a 3foot long gear shift. For proper operation, each tranny had to shifted simultaneously along with double clutching. Two shifters, two hands steering done by left elbow. Needless to say the truck was retired when the driver pool retired.
Beverley and Ken
2006 Winnebago Outlook 29B E-450.
2012 Honda CR-V AWD
Blue Ox Aventa LX tow bar and Brake Buddy Vantage.
I drove a twin screw Ford F800 dump truck hauling sand and gravel when I was in college in the mid to late '60's. The engine was 390 gas and it had two transmissions also. A 5 speed main with a 4 speed aux. As was stated above, shifting involved a massive number of shifts and double clutching. That 390 V8 didn't have a lot of torque, so gears was the only thing that got it rolling and you couldn't skip any either.
Back in the early 1980s I drove school buses for the Estes Park, Colorado district. They had a very old Chevy bus with a split axel. It was a pain to drive unless you had the right touch. It was only used when newer buses were down or out on field trips.
Guess I had the touch. The transportation director only let a couple of drivers take it out. I could drive that thing without using the clutch even when split shifting the two speed axle. All you had to do was work the throtle with a feather touch. Every once in a while it would hang between high and low. It would finally shift with a rather loud bang. It was one sweet machine to drive.
I believe that Colorado outlawed the two speed axle on school buses after there was a major accident on a mountain road when the axle hung between low and high.
Sweet as it was I'll take my Cummins and Allison any day over that old Chevy.
2007 HR Endeavor 40'PDQ
2012 Keystone Outback 210RS
2013 Ford F150 FX4 Ecoboost
2 Arctic Cats
1 Bottle of Jack Daniels
B Model MACK Duplex or Triplex, four in the front and two behind for an 8 speed or three behind for a 12 speed. Your left arm between the spokes of the wheel hanging on to the front four speed, and your right arm holding on to the three speed with a cigarette in your fingers. Double clutch to slow down the boxes between gears upshifting, or hit the throttle between shifts and let the clutch out for a moment to spin the gears up downshifting. No power steering, a vent window for air conditioning and just plain crummy wipers. Blaring loud inside, and bounced like a mechanical bull when empty.
I was 17 at the time and thought I was "king of the world".
Lots of 5&2's out there. Some are non-progressive, meaning 5-low is actually lower than 4-high. So, in order to split all the gears from 3-hi to 4-low to 5-low then back to 4-high then 5-high. Kind of fun.
The two-sticks I drove were know as quadruplexes, and if you never drove one, you missed out on some serious fun.
2008 Dodge 3500 With a Really Strong Tractor Motor...........
LB, SRW, 4X4, 6-Speed Auto, 3.73, Prodigy P3, Blue Ox Sway Pro........
2014 Sandsport 26FBSL