Hello
I have a GT 500 with built 427 side oiler stroked to a 488, dyno 592 HP and 609 torque, 389 Detroit locker, installed a Gear vendor, reasonable easy, no mods or cutting, remove tail shaft from 4 spd bolt it on, some wiring, push in clutch hit a button anytime over 40 mph and she goes into over drive. I think from 389 to 260, not that expensive either. Automatically releases under 40 MHP. No issues with handling the torque or HP
Totally changed the car, I love it still has right revs with 389 in 1 st and 2 nd but wow!! on the highway it is fantastic, way lower revs and noise and now instead of the truck lane I shift from 4 th into OD and head straight for the passing lane. I think my speedo only goes to 125 mph and did you know if you keep going needle will come around and start back at 5 mph again, never knew myself. I had so much fun the first ride all I did was go between HWY exits and accelerate the on ramps up into OD, probably 10 times it was exhilarating!! I simply Love it a whole new car
It works seamlessly, feels totally comfortable and wish I had done it 30 years ago when I bought the car. So now I can bang the gears and get great acceleration head out on the highway and pretty well pass anybody, No pictures handy.