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| | | Forums66 Topics128,187 Posts1,057,312 Members48,468 | | 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!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Apr 2009 Posts: 121 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2009 Posts: 121 | my vacuum 2 speed controller isnt hooked up and im not sure if im in low range or not.i get up to about 35mph in 4th gear with a 261.hopefully im in low range?is there a way to manually switch it?Thanks Dan
Last edited by dantheman49-6400; 04/09/2010 1:20 AM.
| | | | | Joined: Nov 2005 Posts: 6,101 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,101 | Hy dantheman49-6400, the vacuum two speed requires vacuum to shift it into high range, the controller under the dash says to park in low, hope that helps. | | | | | Joined: Jan 2008 Posts: 4,963 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,963 | Vacuum pulls it into high, a spring keeps it in low. Unless the spring is broken, it would be stuck in low. | | | | | Joined: Apr 2009 Posts: 121 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2009 Posts: 121 | alright, so as long as i have no vacuum hooked up, it will stay in low? is that what im hearing? Dan | | | | | Joined: Jan 2008 Posts: 4,963 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,963 | If the spring that holds it in low isn't broken, that is correct. | | |
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