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rotorwrench · 03-25-2021, 10:57 AM

The Montclair likely has the later T85N with R11 OD if it is original. There are a number of electrical components for OD systems and most are still available new from 5th Avenue Internet Garage. I would check out & test the main relay, operating solenoid, kick down switch, and governor to make sure all are functional if the wiring has been replaced. Theses old electric overdrives took a fair amount of current to operate even on 12-volt so make sure the wiring is the correct size of American wire gauge.

03-25-2021, 10:57 AM	#3
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,440	Re: Overdrive parts availabiliy The Montclair likely has the later T85N with R11 OD if it is original. There are a number of electrical components for OD systems and most are still available new from 5th Avenue Internet Garage. I would check out & test the main relay, operating solenoid, kick down switch, and governor to make sure all are functional if the wiring has been replaced. Theses old electric overdrives took a fair amount of current to operate even on 12-volt so make sure the wiring is the correct size of American wire gauge.