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#1
05-19-2019, 03:19 PM
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Speedometer adapter
I just installed a 2004r in my 65 Gto. Speedometer is way off. is reads as follows .
Speedo garmin 30 reads 25 40 32 50 38 60 46 70 55 80 61 90 70 What adapter do I need ? I think that it will have to a 90 degree for space reason. Where can I get one for the best price Thanks Bill Last edited by konwal455gto; 05-19-2019 at 03:20 PM. Reason: text |
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#2
05-22-2019, 07:43 PM
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What tire size and rearend ratio? Have you checked what size drive and driven gears are currently in the trans?
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 Catalina Safari Wagon. |
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#3
05-22-2019, 08:02 PM
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Try this one, just need rear ratio and tyre size: http://www.montess.org/speedo_gears.html
And gears are available from here: http://www.ckperformance.com/List/20...ars-Components
__________________
--> 1966 Pontiac Le Mans Convertible, Martinique Bronze, black top, Parchment interior, alloy Rallye 2's, M/T Sportsman ST's 235f/255r with redlines, 464 (455 .040 over), Performer RPM 87cc round port heads, Butler roller cam, Edelbrock Pro-Flo 4, Ram Air 2.5" manifolds, 67 GTO Ram Air pan, 2.5" Magnaflow, Muncie M22, 3.55 Eaton Posi. <-- |
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#4
05-22-2019, 09:21 PM
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Quote:
3.42 rear axle tire diam 26.8 inches drive gear 13 driven gear 26 --- IF those are what you have swapping to a 10 drive gear will put you real close, just over 1% error. |
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#5
05-22-2019, 09:32 PM
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Adapter for speedo
Called Art Carr at California Performance Transmission , He just needed what the speedo said when my garmin read 50 mph $75 Life is good Thanks for the replies . Bill
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