Re: RIk's 56 ultramatic

Posted by HH56 On 2018/3/19 16:14:51

Since Riki spotted the ebay link for this unit and told me about it will put it in his thread since we are discussing actuators. For anyone else that might be curious here is the RR unit that shifts the GM 700R4 style transmission. RR uses a very similar electrical command operation -- different relay and power layout but the working principle is the same.

Am going to see how hard it would be to adapt the Packard PBs to work the RR actuator but if I ever find a dirt cheap GM trans to play with may even try to adapt the Packard actuator unit for someone who wanted to add the GM trans to a 56. It might be possible to adapt the Packard unit but if there is room for the RR unit it may be an easier way to go. I wonder if the fellow in Europe who first mentioned the RR unit as a possibility for his 56 PB cars 700R4 conversion ever got it done.

The RR gearshift selection uses a lever with individual micro switches for the gears instead of PBs but note the size and layout of the fingers on the unit. They also use microswitches for some interlocking, start safety and reverse lights.

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