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| | | Forums66 Topics128,075 Posts1,055,918 Members48,429 | | 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!
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#77163 05/06/2007 10:14 PM | Joined: Oct 2005 Posts: 1,317 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 1,317 | Have reached the stage where I need to tweak the T5/Speedo in my 54-3100. Was wondering if any of you who are running the mechanical T5, have figured out how to complete this calibration. The local GM dealership is absolutely NO HELP....don't even show my little adaptor box let alone have a clue about calculating the gear ratio or locating the necessary gear set.
Any suggestions you could offer would be appreciated.
Dave | | |
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