700R4 to 350 swap. NEED A SPEEDO ADAPTER?
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From: Mechanicsburg, PA
Car: '89 Formula 350
Engine: 5.7L L98 TPI
Transmission: 700-R4 Automatic
Axle/Gears: 7.5 disc posi 3.23
700R4 to 350 swap. NEED A SPEEDO ADAPTER?
I am looking to swap a TH350 in place of the 700 R4. I need a way to get the electric speedo to work. An ideas??
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
Re: 700R4 to 350 swap. NEED A SPEEDO ADAPTER?
adapter from trans shop or summit/jegs etc
Thread Starter
Senior Member
iTrader: (3)
Joined: Jul 1999
Posts: 816
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From: Mechanicsburg, PA
Car: '89 Formula 350
Engine: 5.7L L98 TPI
Transmission: 700-R4 Automatic
Axle/Gears: 7.5 disc posi 3.23
Re: 700R4 to 350 swap. NEED A SPEEDO ADAPTER?
What does the adapter consist of? Is it just to adapt to a different hole size or a signal generator specific to the 350s housing?
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Joined: Nov 2005
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From: Boaz, Al
Re: 700R4 to 350 swap. NEED A SPEEDO ADAPTER?
Here you go. This kit allows you to put your 700r4 tailshaft with its electric speedo on the th350 transmission
http://www.transmissionpartsusa.com/...-00000735b.htm
http://www.transmissionpartsusa.com/...-00000735b.htm
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Joined: Jul 2000
Posts: 580
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From: Charlotte, NC
Car: 1989 Camaro RS
Engine: 355 mildly modified
Transmission: 700R4 fully modified
Re: 700R4 to 350 swap. NEED A SPEEDO ADAPTER?
Anything that was need to know for doing this? What problems did you run into? How difficult was it to hook up the shift linkage, speedo, and what type of driveshaft issues did you have? I've blown out my 2nd 700r4 and am ready to put in something different.
Thanks,
Mike
Thanks,
Mike
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