The accuracy is right on the money when compared to my GPS unit. When I change
tire sizes in the future, I will have to change the speedometer gear. Since I
have a 350 installed, that is easy. I don't know how far back GMs speedometer
gears will interchange. I worked in an independent garage in the 70s, we kept a
box of them to pick and choose from, it seems that all of GM speedometer gears
would interchange, you just had to get the right number of teeth to make the
speedometer read correctly.
Jim Nordwall
________________________________
From: "jjstultz@msn.com" <jjstultz@msn.com>
To: Jim Nordwall <jimnordwall@yahoo.com>; oletrucks-bounces@autox.team.net; K
Ohlgren <kjohlgren@hotmail.com>; oletruck oletruck <oletrucks@autox.team.net>
Sent: Sun, August 29, 2010 2:31:59 PM
Subject: Re: [Oletrucks] 59 speedo
Jim,
I hadn't thought of trying this. Any issues with accuracy?
Justin
1954 3100
Sent via BlackBerry from T-Mobile
-----Original Message-----
From: Jim Nordwall <jimnordwall@yahoo.com>
Sender: oletrucks-bounces@autox.team.net
Date: Sun, 29 Aug 2010 06:12:25
To: K Ohlgren<kjohlgren@hotmail.com>; oletruck
oletruck<oletrucks@autox.team.net>
Subject: Re: [Oletrucks] 59 speedo
When I replaced the speedometer in my 1950 Chevy, I used the workings from a
1974 Chevy truck. Making it fit the faceplate and the speedometer housing was
almost like it was made for it. I suspect that most of General Motors
speedometers are very similar and will interchange without major modification.
Once you get into the 90's where lots of stuff was made in countries other than
USA, all bets are off. You should be able to find an instrument cluster from an
older truck at a junkyard fairly cheap.
Jim Nordwall
________________________________
From: K Ohlgren <kjohlgren@hotmail.com>
To: oletruck oletruck <oletrucks@autox.team.net>; old_chevroletgmctrucks
<old_chevroletgmctrucks@yahoogroups.com>; old-chevy-truck
<old-chevy-truck@yahoogroups.com>
Sent: Sat, August 28, 2010 1:12:36 PM
Subject: [Oletrucks] 59 speedo
the speedo on my 59 reads fast under 30, hangs at 30 from 30 to 45 and then
reads slow over 45.
is the speedo on my 59 worth rebuilding or should i just buy a new one?
lmc has a new speedo for the 55-59 trucks for $150.
has anyone bought a lmc speedo?
_______________________________________________
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