АКПП с овердрайвом для BMW, Opel, Isuzu. Винтажная "коробка" GM 4L30E.

Hello! Do you know what overdrive is?
In fact, it's just extra gear with ratio less than 1.0. "Overdrive" was added even to manual gearboxes to increase efficiency in highway modes.
Also, using overdrive, you can turn 3-speed Automatic transmission in 4-speed AT. We were on a showdown was a "machine" GM 4L30E with Opel Omega (on which it has the designation AR35). This is an old interesting box with 4th gear in a separate case. As always, we talked in detail about its design and weaknesses.

Read more about the problems of automatic transmission GM 4L30 on our website: https://autostrong-m.by/post/problemy-i-nadezhnost-akpp-gm-gm-4l30-e-ar35

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