| Re: [GMCnet] Speedometer Gear Reducer Adapter [message #359928] |
Mon, 02 November 2020 09:51  |
Ray Erspamer
Messages: 1707
Registered: May 2007
Location: Milwaukee Wisconsin
Karma:
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I have the 3.7 with the supplied gear adapter but I run 245 tires so my speedo reads fast. I need a .879 reducer or a couple of different gears.Sent from my U.S.Cellular© Smartphone
-------- Original message --------From: James Hupy via Gmclist Date: 11/2/20 9:39 AM (GMT-06:00) To: gmclist@list.gmcnet.org Cc: James Hupy Subject: Re: [GMCnet] Speedometer Gear Reducer Adapter Jim K. sells a gear reduction box of the appropriate ratio that matches thefinal drive sets that he sells. With the 3:70 -1 gears that I installed inmy 78 Royale with a 403 engine and original tire circumference, it is deadspot on the mark. Another option is a GPS speedometer, you just calibrateit as you travel down the road. Both systems work well.Jim HupySalem, OregonOn Mon, Nov 2, 2020, 7:30 AM 78gmcroyale via Gmclist wrote:>> Good Morning If I recall someone on here is knowledgeable of speedometer> gear adapters. Can anyone connect me with that person?ThanksRaySent from> my U.S.Cellular© Smartphone> _______________________________________________> GMCnet mailing list> Unsubscribe or Change List Options:> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org>_______________________________________________GMCnet mailing listUnsubscribe or Change List Options:http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Ray Erspamer
78 GMC Royale Center Kitchen
403, 3.70 Final Drive
Holley Sniper Quadrajet EFI System,
Holley Hyperspark Ignition System
414-484-9431
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