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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: May 2011 Posts: 9 New Guy | | New Guy Joined: May 2011 Posts: 9 | Hi there
I'm looking for a park brake assembly that went on the back of the TH 400 in the Chevrolet P30 step vans.
It's going onto a Gear Vendors overdrive that will bolt to my SM 420 transmission.
Can anyone point me in the right direction to get one? I'm getting desperate as it's holding up my project... | | | | | Joined: Feb 2004 Posts: 29,825 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,825 | Lots of motorhomes had that setup. The one I owned didn't have the regular parking pawl inside the transmission to lock the driveshaft. It had a big drum brake on the back of the transmission, applied by a heavy spring. An electric motor with a worm gear drive retracted the spring when the transmission was moved into gear.
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!
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