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Old 11-28-2008, 04:24 AM   #1
BLE 'BURBAN
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Speedometer correction unit.

Found this part in the back of my tool box the other day. It's the speedometer correction unit off my old '74 model 1/2ton 2wd truck. The truck had a TH400 in it and 3:07 rear end gears. I'm guessing these things are getting to be a rare item to find. Don't know for sure though. Asking $25.00 Plus Frt. Teeth count on gear is 23
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1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015
1990 chevy suburban V2500 5.7L
My cluster Mods-Nov 2007
overhead console Stereo install Round 2 Aug 2009
Heated/turn signal mirror upgrade
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Old 12-01-2008, 10:42 PM   #2
BLE 'BURBAN
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Re: Speedometer correction unit.

ttt
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1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015
1990 chevy suburban V2500 5.7L
My cluster Mods-Nov 2007
overhead console Stereo install Round 2 Aug 2009
Heated/turn signal mirror upgrade
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Old 12-02-2008, 01:05 AM   #3
Stitch
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Re: Speedometer correction unit.

can this be modified to make my speedo right on my truck...it's a 84 with a 700r4, stock tires, and 3.42 gears in the rear...thanks...

Chuck.
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Old 12-02-2008, 02:44 AM   #4
BLE 'BURBAN
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Re: Speedometer correction unit.

Don't know on that but you may want to check out TCI TRANSMISSIONS web page on speedometer geering here...... http://www.tciauto.com/Products/Tech...eedo_gears.asp
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1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015
1990 chevy suburban V2500 5.7L
My cluster Mods-Nov 2007
overhead console Stereo install Round 2 Aug 2009
Heated/turn signal mirror upgrade
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Old 12-02-2008, 10:49 AM   #5
mhicks
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Re: Speedometer correction unit.

Looky there.....it says "Made in the USA". Don't see that very often...
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