Quote:
Originally Posted by some_other_dave
There were also external overdrives that were fitted to older Brit-cars like MGs and Triumphs. I believe those gave you a choice of two gear ratios between the output of the transmission and the input of the differential. So you effectively had twice as many gears--generally eight of them.
-soD
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Are you thinking of the Laycock overdrive? I remember those overdrives being fitted to Volvos. Chrysler retrofitted them onto the 46RE, I think. Gear Vendors bought the tooling and designs for these overdrives, and provides them now as an aftermarket add-on kit. I've got one of them sitting in my garage, but I'm not sure whether it would be a good idea to install it onto my truck.
There was another member who actually installed one of them onto his truck. Damned if I can't remember his name, right now.