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Modern day doodlebug tractor?
#1184631 Wed Sep 28 2016 05:20 PM
Joined: Feb 2004
Posts: 21,271
H
Boltergeist
Got another waaaaayyyyyy off the wall idea today! How about building a doodlebug using somewhat modern technology? I've got a 51 GMC 1/2 ton frame and suspension sitting around doing nothing, an old vacuum shift 2-speed rear axle from the mid-1950's, and a 1-liter 3 cylinder GEO Metro engine and 3-speed automatic transmission, all just taking up space, plus various torque tube 3 speed transmissions. How about if I chop a couple of feet out of the frame, rigid-mount the big rear axle, and figure out how to couple up the GEO engine/trans assembly to it, with maybe a 3 speed manual box somewhere in the middle? The thing would probably climb trees!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Modern day doodlebug tractor?
Hotrod Lincoln #1184635 Wed Sep 28 2016 05:47 PM
Joined: Jan 2013
Posts: 1,426
J
Shop Shark
Built a bunch of them when I was a kid. If you got a use for it, go for it.
Start at the front. Put a radiator on, then mount the GEO engine and trans. Then close couple the 3 speed on to it and finally slide the rear axle up and close couple it to the trans. U-bolt the axle to the frame and cut off everything that hangs over the back.
Note: with dual trans, Reverse, reverse is the lowest gear usually.

Last edited by Jim Sears; Wed Sep 28 2016 05:48 PM.
Re: Modern day doodlebug tractor?
Hotrod Lincoln #1184641 Wed Sep 28 2016 06:38 PM
Joined: Jun 2006
Posts: 767
T
Shop Shark
what do you do with these things?

Re: Modern day doodlebug tractor?
Hotrod Lincoln #1184642 Wed Sep 28 2016 07:03 PM
Joined: Aug 2001
Posts: 4,435
2
Shop Shark
Have fun building them and then using them to pull a plow.

Don


Of all the things I've lost in my life, I miss my mind the most!

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery [stovebolt.com]
More pix on Photobucket [s893.photobucket.com]
'46 2-Ton grain truck
'48 3/4-ton grain truck
'50 2-ton flatbed
'54 Pontiac Straight Eight
'70 American LaFrance pumper fire truck.
Re: Modern day doodlebug tractor?
tomctomc #1184643 Wed Sep 28 2016 07:06 PM
Joined: Feb 2004
Posts: 21,271
H
Boltergeist
Originally Posted by tomctomc
what do you do with these things?


Plow the garden, tow stuff, climb hills to the deer stand, pull a trailer back to the barn to process the deer, even mount a gin pole and a cable winch to lift heavy stuff to second-story level like the bar joists for my new shop addition. There's a lot of things an off-road low speed crawler can do! With a weight box full of scrap iron over military lug tires on dual 20" wheels, it will outpull a medium-sized farm tractor.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Modern day doodlebug tractor?
Hotrod Lincoln #1184704 Thu Sep 29 2016 03:13 AM
Joined: Apr 2005
Posts: 2,624
C
Shop Shark
Friend used one for years at his starter/generator shop to push dead ones up into his shop. Had a big wrecker size front bumper of redwood to prevent scratching. He remarked one day that as soon as he got them fixed to where the doodle bug wasn't needed the customers always took them away from him.


Evan
Re: Modern day doodlebug tractor?
Hotrod Lincoln #1184750 Thu Sep 29 2016 04:45 PM
Joined: Feb 2004
Posts: 21,271
H
Boltergeist
I'm also thinking about submitting a sealed bid on a M35 military truck and 2-wheel trailer a nearby city is auctioning. It's the old 6X6 10-wheeler with a 6 cylinder Continental multifuel Diesel and a big flatbed with stake sides and a good tarp. Handy to have on the farm, but a real fuel hog out on the road!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Modern day doodlebug tractor?
Hotrod Lincoln #1184812 Fri Sep 30 2016 12:35 AM
Joined: Jan 2013
Posts: 1,472
A
Shop Shark
Someday when I've worked my project list down to a sensible length, I want to get one of those big Military trucks. My neighbor, an Anesthesiologist during the day, has a deuce and half that he pulls out every couple weeks. During all the flooding we had this year, he was rescuing folks that couldn't get out of their subdivision. It's cool as heck. So my vote is for the M35. You can give the Mrs. a ride on all your local parades.


Allen
Yeah, well, that's just like, you know , your opinion, man - The Dude

1948 Chevy 3600 - goal Original restoration, Current Stage 1 - Disassembly and getting body in primer
1954 GMC 3100 goal Hot Rod, Current Stage 1 - Get body in primer
1931 Ford Model A 5 window Coupe - Old Skool Hot Rod
1945 Ford 2N Tractor - Runs great
1964 Ford 2000 Tractor - Use it every week
1974 Stingray Corvette

Re: Modern day doodlebug tractor?
Hotrod Lincoln #1184874 Fri Sep 30 2016 11:14 AM
Joined: Nov 2011
Posts: 2,595
P
Shop Shark
I think the challenge of making a doodlebug exclusively from residue and junk on hand would be a fun project.

Be careful with collecting big green trucks...it is an addiction worse then meth. Building my second one now...


Last edited by Paul_WNC; Fri Sep 30 2016 11:16 AM.
Re: Modern day doodlebug tractor?
Paul_WNC #1184901 Fri Sep 30 2016 05:11 PM
Joined: Feb 2004
Posts: 21,271
H
Boltergeist
Originally Posted by Paul_WNC
Be careful with collecting big green trucks...it is an addiction


Maybe I'd better check to see if that tarp cover doesn't leak- - - - -I might have to live in it if I buy it! I've already got a 61 GMC fire truck sitting out in the pasture!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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