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Joined: Jul 2011
Posts: 147
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jul 2011
Posts: 147 |
I have found a Johnson overdrive unit that I was thinking of installing on my 28. Does anyone have any pros or cons on these? Also what is a fair price? Thank you in advance John.
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Joined: Apr 2006
Posts: 3,511 Likes: 48
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Apr 2006
Posts: 3,511 Likes: 48 |
Here's info from Ron Beam in San Jose. You can send me a private message (PM) if you want to contact him directly. Cheers, Dean Pros: - Obviously the additional gearing and drivability.
- Originality - they were available as of about 1927.
Cons: - They leak and throw oil but can be made not to. If they run dry, they self-destruct quickly.
- They can be noisy. Some are, some aren't. It depends on the condition of the input coupling gear and other factors.
- They can jump out of gear. The spring detent on the shift fork is fussy but can be fixed.
- Installation on 25-27 is straight forward but on 28, the brake equalizer bracket to the universal housing must be shortened and a bracket fabricated.
Fair Price: What you're willing to pay. There really aren't many comparable alternatives that don't require more extensive modifications.
Dean 'Rustoholic' Meltz old and ugly is beautiful!
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Joined: Dec 2015
Posts: 4
Grease Monkey
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Grease Monkey
Joined: Dec 2015
Posts: 4 |
Hello John......I am also looking for a Johnson overdrive unit. If you do not want this piece or know of another unit that is available could you please let me know. (559)269-4145 or Email timbakman@bakmanwater.com I appreciate any help you can provide. Thanks, Tim Bakman
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Joined: Feb 2002
Posts: 282 Likes: 2
Backyard Mechanic
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Backyard Mechanic
Joined: Feb 2002
Posts: 282 Likes: 2 |
John
did you ever install it on your Chevrolet?
Mike Quezada
(559) 250-5427
mike.quezada@M2ProSol.com
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Joined: Mar 2011
Posts: 320
Backyard Mechanic
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Backyard Mechanic
Joined: Mar 2011
Posts: 320 |
Yes id love to see some pics, never heard of one, Ray
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Joined: Apr 2006
Posts: 3,511 Likes: 48
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Apr 2006
Posts: 3,511 Likes: 48 |
Here's a thread that talks about the installation of a Volvo overdrive into a '26 Chevy: https://vccachat.org/ubbthreads.php/topics/448411/overdrive-installers.html. It has pics towards the end of the thread. Ron Beam in San Jose, CA has this kind of set up in his '28. Enjoy! Dean
Dean 'Rustoholic' Meltz old and ugly is beautiful!
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