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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Nov 2014 Posts: 37 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2014 Posts: 37 | I found a 1970 C70 that was in a fire tires didnt burn but i just want it for parts mainly the brownie. I want it for my C70 the owner said he couldnt down shift it but just why i couldnt get out of him. How are they to shift ? The truck is priced write if you need alot of parts but not if the part i want isnt any good. | | | | | Joined: Feb 2004 Posts: 29,746 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,746 | I'll bet he didn't know how to RPM match- - - -most Brownies ARE NOT synchronized- - - -gotta shift them like a crash box! Slip the box out of gear without disengaging the clutch, rev the engine up until you can slip it into the lower gear, and drive on. The Mack Tri-Plex I learned to drive big rigs on had a 5 X 3 setup, and I could go up and down all 15 gears without using the clutch. There's no need to double clutch unless you just enjoy exercising your left leg.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Nov 2014 Posts: 37 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2014 Posts: 37 | He wants 2000.00 i can get a trans and driveshafts for under 500.00. I may go look at it. | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Make sure to get the remote shifter, linkage is easily made from EMT tubing. Find out the model number, too.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Feb 2004 Posts: 29,746 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,746 | It's fairly simple to make a Brownie shifter from the top cover of a trashed-out SM-420 4 speed transmission.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jul 2014 Posts: 892 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 892 | FWIW Ya gotta use the clutch on the road test for your CDL. When I upgraded from a chauffer's license to a CDL I didn't bother with the clutch and the examiner marked me off one point for each shift. I had to come back the next day and take the test again and pay the $75 again.
1951 3800 1-ton"Earning its keep from the get-go"In the DITY Gallery1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971. | | | | | Joined: Oct 2005 Posts: 4,249 "Hey! I sound like Darth Vader!! | | "Hey! I sound like Darth Vader!! Joined: Oct 2005 Posts: 4,249 | FWIW Ya gotta use the clutch on the road test for your CDL. When I upgraded from a chauffer's license to a CDL I didn't bother with the clutch and the examiner marked me off one point for each shift. I had to come back the next day and take the test again and pay the $75 again. "I don't know how to do your job! But my book says you're doing it wrong!" | | | | | Joined: Feb 2004 Posts: 29,746 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,746 | I'd love to see that examiner drive a 4 X 4 transmission setup with an air-shifted Brownie a few miles and try to do it using the clutch for every shift! I doubt if the transmissions would survive!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Apr 2002 Posts: 2,168 A teacher, but always an apprentice. | | A teacher, but always an apprentice. Joined: Apr 2002 Posts: 2,168 | So I’m kind of highjacking this as my sm420 acts up like this. I can’t shift OUT of 3rd most of the time with the clutch. I have to have my revs just right, pull it out of gear with no clutch, downshift and carry on. It goes into 3rd beautifully, always. I’m guessing now I have a bad synchronizer? I thought it wouldn’t affect shifting out of a gear, just into a gear. I want to make it easier for others to enjoy the truck.
Help?
Last edited by Fox; 01/15/2021 5:50 AM.
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