700r4 Speedmeter Help!!
 

I purchased a used 700r4 transmission for my truck and had it rebuilt by a professional shop. Since it was my first time installing it in the truck, I wanted to get the correct plastic speedo gears to have a correctly reading speedometer.

I recently purchased the correct plastic gears and have found that my transmission might have been used in an electronic speedo? Can someone look at this picture and tell me if I am on the right path? From what I can tell, you can't remove this metal gear.

Is there any way to convert this to work with the speedo cable on my truck? I already spent a ton on the rebuild and I would like to get the speedo to work correctly.

Thanks,

Adam

Re: 700r4 Speedmeter Help!!
 

That gear is pressed in place on the output shaft. You can drive it off to the rear of the shaft and there should be a hole in the shaft that holds the clip for the plastic speedometer drive gear. Any other questions call me at 972-335-9823
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Re: 700r4 Speedmeter Help!!
 

Maybe this can help.....

Re: 700r4 Speedmeter Help!!
 

I am in the same boat, I thought that I could get an electronic Speedo that would hook up to it?

Re: 700r4 Speedmeter Help!!
 

Like 409 says that relucter can be taken off & a plastic speedo gear put on but you should check the rear houseing & see if the housing for the driven gear will fit & mesh right. You may have to get a different rear tail housing. I know that is the way it is on the T-5 manual trans.

Re: 700r4 Speedmeter Help!!
 

425HP is correct. there should be a small clip that holds the drive gear to the output shaft. I had a 700 in my 67 Chevelle, and could not find the right combination for it. I took the car to a speedometer shop here in Jax FL, and Chris made me a reducer that attaches to the driven gear housing. The reducer screws onto where the speedo cable would go, and the speedo cable attaches the reducer. It cost about $100 bucks, but I knew I was going 100 when I was. This might be an easier way to make you speedo read correct

Re: 700r4 Speedmeter Help!!
 

I was going to update everyone, but you beat me to it. I purchased a 8 inch gear pulley and was able to pull the metal gear ring out.

Once I had the metal gear ring our, I slid my plastic ring get over the shaft and clipped it in with the small clip. Everything is working fine now, but when I first saw it, I wasn't sure what the next step was.

Thanks again!