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Old 08-20-2013, 06:12 PM   #1
72oldy
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72 chevy longhorn

I put a 400 tranny out of 1988 pickup how do I get the speedo to work
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Old 08-20-2013, 07:23 PM   #2
john
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Re: 72 chevy longhorn

There is lsx engine swap sticky in the engine forum. Most are using trans with speedometer that is electronic. You can find what others are doing to make them work. Also here is a google search which shows some options.
https://www.google.com/search?site=&...19.elk7hObcRyI
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Old 08-20-2013, 11:48 PM   #3
72oldy
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Re: 72 chevy longhorn

I put the tranny in a 72 chevy pickup I heard that u can just switch out the gear in tranny for the speedo to work?
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Old 08-21-2013, 08:22 AM   #4
MARKDTN
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Re: 72 chevy longhorn

It is a TH400 (no lockup, no electronics)? If that is the case, then you can swap the electronic pulse generator for an early driven gear and output for a mechanical speedo.
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