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Click on image for the lowdown. 
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9 members (farmallb, moparguy, Opelika Tom, mk72, Otto Skorzeny, Oswald, Hush, RoadsScholar, 1 invisible),
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Global Mod,
Mod | | | Forums66 Topics128,089 Posts1,055,988 Members48,430 | | Most Online14,466 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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | Cosmo, the reverse lockout is controlled by the governor on the very back of the overdrive unit. The governor does allow the unit to shift into overdrive at speeds under 28 MPH. The front box is totally independent from the overdrive unit. I think the extra hole is just there unless possibly it had something to do with a backup light. I think the link I provided earlier is password protected. This one might work. http://www.webhubcentral.com/packard/downloadable/BorgWarner_Overdrive.pdf It's 20 pages so it takes a little to download.
Last edited by crenwelge; 10/07/2009 3:27 AM.
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