Mollas pass in a 1949 KW twin stick

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bigun
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Mollas pass in a 1949 KW twin stick

Post by bigun »

https://www.youtube.com/watch?v=TpfhFw0QopM

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Stuka
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Re: Mollas pass in a 1949 KW twin stick

Post by Stuka »

That is a super cool truck.
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Grand_Wag_85
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Re: Mollas pass in a 1949 KW twin stick

Post by Grand_Wag_85 »

What a good looking rig!
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bigun
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Re: Mollas pass in a 1949 KW twin stick

Post by bigun »

It's funny to think that Phil"flatbackdragen" used to take an 18 wheeler loaded with sheetrock over that pass everyday!

Rod2
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Re: Mollas pass in a 1949 KW twin stick

Post by Rod2 »

My coal truck drivin' wasn't nearly that interesting nor beautiful, but the twin stick shifting sure took me back to my '60 GMC tandem dump.
'73 J4000 'WOOD GO' 360, 2100 MC, T-18, D-20, 60-2 rear, D-44 closed knuckle front with Warn lock-o-Matics, Eaton E-lockers both, Pertronix module, AC, PS, Hydro-boost, AirLift bags front and rear, 33x15 Goodyear MTR's, Pacer 15x8 aluminum Bullet Holes, Summit line lock, 3rd brake light, tilt column from '77 Firebird, 12000 MileMarker on cradle, hitch receiver on both ends
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44bz
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Re: Mollas pass in a 1949 KW twin stick

Post by 44bz »

Will somebody explain the twin stick shifting? That looked crazy, especially shifting both at the same time:)


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1968 J2000 - AMC 327/T18/D20 (twin stick), stock D44s, 3" body lift, 35x12.50 Goodyear MTRs w/ Kevlar

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bigun
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Re: Mollas pass in a 1949 KW twin stick

Post by bigun »

One transmission has from 4 to 5 gears the other 2 or more, generally 3 one of which is an under drive, a one to one and an overdrive. Where a modern box will have all in one transmission that is air shifted Then you can have 3 sticks I had one pull onto my fuel island in the 70s that had 4 sticks one of them was a transfer case tractor was built to be an offroad logging rig had a top speed of 58 MPH

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Re: Mollas pass in a 1949 KW twin stick

Post by SJTD »

Pretty cool but I liked the Mack near the end. Even the guy with the camera lingered on it a bit.
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Re: Mollas pass in a 1949 KW twin stick

Post by Rod2 »

44bz wrote:Will somebody explain the twin stick shifting? That looked crazy, especially shifting both at the same time:)


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Back in the olden days (yes, I'm old; even "olden" is old) tandem trucks were built with 2 trannys: a main and an auxiliary. Mains were 5 or 6 speeds with fairly standard ratios. Auxiliaries were 3 or 4 speeds: underdrive, direct, and overdrive in the three speeds. As I recall, the 4 speeds had an ultra low as well as the other three. There could have been other arrangements as well.
My experience of hauling coal in WV in 1960 was in a brand new GMC tandem dump (389 gas V8, no less, woo!, woo!). US 60 (Midland Trail) went over Gauley Mtn about 40 miles east of Charleston. Well, Charleston is beside a river and Gauley Mtn is about 1400ft higher. So over it I had to go to dump the 14 to 16 tons of black gold. There were sections of the highway where I had to shift as fast as a I could to find a ratio that would take me over the top of each rise. Therein lies the shiftiness; unlike a Roadranger that shifts to another gear that skips the whole main range. The gears in these auxiliaries were closer in ratios and would fit between the main ratios. For instance. 2nd under was between 1st direct and 1st over, then it was 1st over and 2nd direct, then 2nd over and 3rd under, and so on up and down through the rest of the combined ratios to the desired speed/pulling ability. (Even though I never hit 5th/over with a load, I did drive back to the mine fast enough to make the front tires howl around those curves.)
You see, some of those shifts required a different setting for each tranny stick. So I would stick my left arm through the steering wheel spokes and guide the Jimmy while finding it a comfortable ratio. Of course, by the third or forth shift, I was usually slow enough I could have walked beside it and steered (not really) but it wasn't NASCAR either. And my main was synchronized, so I could shift one tranny while the other was in neutral, or shift in sequence using the main tranny to align things without ripping or scraping. The process was called split "shifting," a phrase originally used for 2 speed axles. I tried the tactic in '49/'50 while I was learning to drive a CJ2 with twin sticks; didn't work--went through neighbors fence. That childhood incident could have been an omen; In May '60, I drove the Jimmy onto a railroad crossing just seconds before a train used the same crossing; it got the truck but didn't get me.
'73 J4000 'WOOD GO' 360, 2100 MC, T-18, D-20, 60-2 rear, D-44 closed knuckle front with Warn lock-o-Matics, Eaton E-lockers both, Pertronix module, AC, PS, Hydro-boost, AirLift bags front and rear, 33x15 Goodyear MTR's, Pacer 15x8 aluminum Bullet Holes, Summit line lock, 3rd brake light, tilt column from '77 Firebird, 12000 MileMarker on cradle, hitch receiver on both ends
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