Here's an A518 with a converter and balanced plate if you are interested.
[FOR SALE] - A518 4sp transmission
I am running an A500 (42RH) behind a mild built 5.9 Magnum disguised as an LA that is set up to fully automatically shift through 1-2-3-OD-lockup without an expensive stand alone computer or manual activation at all.
Or I can turn either or both OD and lockup off if I don't want to use them.
Been watching your questions but don't have a lot of time right now, cause the Wife has me remodeling a master bath along with reconditioning an old clawfoot tub.:D
The 518 requires fairly extensive floor cutting and the A500 fits pretty well without much floor mods at all. (just the support on the underside of the tunnel over the trans needs trimmed.
With 273 rear gears the car runs at 80mph and 2,100 RPMs and gets pretty much exactly 25mpg out on the open hiway.
H series transmissions (1995 and older) are hydraulic controlled and only need three wires connected to activate OD and lockup, where the E series (96 and up) are fully computer controlled and would need an aftermarket controller and all the required sensors for the computer to know what's needed and when for shifts and kickdowns.
With the H series adjustable pressure switches connected to the governor hydraulic pressure port can control shifts determined by road speed.
I have my pressure switches set to have OD come in at 60mph and lockup at 75 since the main hiway speeds here are 75 and I usually run about 80-85.
With the pressure switch shifting lockup drops out when I get below 75, and OD drops out at 60.
Been running this combo for a couple of years now and it's been flawless.
I can give some help on this little at a time here and there if needed.
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