Thread: 700R4 speedo hookup
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02-08-2015 11:11 AM #1
700R4 speedo hookup
Hey guys I have an 89 700R4 with an electronic vss (2 wire). I'm putting this in my non computer controlled 34 Ford tudor. I was thinking I had to pull the reluctor gear and go back to the old style gear set but there is some sort of canister on the end of the tail shaft that I would also need to remove and I'm not sure what that thing even is, much less can I remove it. So I've read on a couple of forums and I'm getting conflicting messages. One said the stock 2 wire setup one is a ground and one is the power. On another forum they said both are power and it is an alternating power that pulses thru both wires. Has anyone ever hooked up these wires to their speedo with any success? This is the sensor I have. Any help would be greatly appreciated.
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02-08-2015 03:47 PM #2
Those wires were meant to go directly to the computer. I can't imagine that any stock speedo could interpret the signal. Not much help - just an opinion.Jack
Gone to Texas
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02-09-2015 01:34 AM #3
Well I just bought a pigtail so I'm going to give it a shot. If it doesn't work I'm only out $10. Thanks for the input.
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02-09-2015 07:02 AM #4
Where did you buy the pigtail?
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02-09-2015 08:58 AM #5
The 400 trans I put in my Nova had Electric speedo hook up. I removed the electronics and installed a drive gear for manual speedo. Worked great ...And did it with trans in car.Last edited by cffisher; 02-09-2015 at 09:08 AM.
Charlie
Lovin' what I do and doing what I love
Some guys can fix broken NO ONE can fix STUPID
W8AMR
http://fishertrains94.webs.com/
Christian in training
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02-09-2015 09:14 AM #6
Just removed tail cover ,center punched gear for electronic pickup. Drilled it and it popped at the drill hole. Removed that gear. Put the new gear in freezer over night . New gear slid right on with no problems. Reassembled tail housing with new gears . Maybe this will help youCharlie
Lovin' what I do and doing what I love
Some guys can fix broken NO ONE can fix STUPID
W8AMR
http://fishertrains94.webs.com/
Christian in training
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance