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Old 08-14-2017, 08:54 PM   #9
Titomars
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Join Date: Feb 2015
Location: Santa Rosa, Ca.
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Re: New 4L60 (YEA!) and speedo problems... :(

Quote:
Originally Posted by RedBed View Post
When I removed the cable from the trans side, a very small wire ring (like a clip) fell out, so I have it in an envelope.

Any ideas? I might fix it myself if I can.

Also - He said it is currently 17/37 speedo gears. When my speedo reads 60, my GPS speed is 57. So would that mean I need to maybe a 17/36 setup?

THANKS
The wire ring (clip) holds the speedo gear shaft seal in place. Expand it slightly and slip it back into the sleeve down just touching to the seal.

You need a 38 tooth gear to get the speedo slower. 3 mph is an acceptable variance at highway speed if you check it at 35mph it is probably dead nuts on. Mechanical speedometers are never accurate through the entire spectrum. One tooth on the driven gear equals about 3 to 4 mph.
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