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Airdirect · 11-26-2019, 11:26 AM

I have been having trouble with my 2-speed speedometer adapter not shifting when the axle is changed from low to high. I drilled out the four rivets and disassembled it. The lubricant was gummed up and sticky. I cleaned and re-oiled with 30W motor oil, installed pop rivets and presto, it works again. I should have taken pictures so folks would know how it works. Sorry I did not. It is very simple, just a set of planetary gears that are locked from rotating until power is applied. Once power is applied a electromagnet pulls against a spring to remove the locking tab and allows the planetary gears to rotate.

11-26-2019, 11:26 AM	#195
Airdirect Registered User Join Date: Oct 2016 Location: Powderly Texas Posts: 297	1979 Chevrolet C70 Conversion to OEM Air Conditioning I have been having trouble with my 2-speed speedometer adapter not shifting when the axle is changed from low to high. I drilled out the four rivets and disassembled it. The lubricant was gummed up and sticky. I cleaned and re-oiled with 30W motor oil, installed pop rivets and presto, it works again. I should have taken pictures so folks would know how it works. Sorry I did not. It is very simple, just a set of planetary gears that are locked from rotating until power is applied. Once power is applied a electromagnet pulls against a spring to remove the locking tab and allows the planetary gears to rotate.