Author Topic: 86 C10 speedometer to a 4L60 replacement 700r4 tranny from a 1992 Sierra  (Read 537 times)

Offline 86whitetruck

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I have a 1986 C10 shortbed Chevy truck, it has the original speedometer and cable that should hook up to a th350 speedo. We swapped that tranny for 4L60 (not 4L60E) tranny (out of a 1992 Chevy Sierra) and I can't find out what i need to do to mesh these together. Is there something simple/cheap i can do?

Offline frotosride

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Re: 86 C10 speedometer to a 4L60 replacement 700r4 tranny from a 1992 Sierra
« Reply #1 on: January 14, 2021, 05:03:15 PM »
Does your 4l60 still have the speedometer gear housing on the tail shaft adapter?
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