Toyota A760E / A761E

Toyota's longitudinal six-speed — in the Lexus IS, GS, LS and SC.

It is the A960E's larger relative and the two are constantly confused, because both are Toyota six-speed longitudinals and both appear in the IS and GS in overlapping years. The engine decides which, and the parts do not interchange.

The A760H is the all-wheel-drive version and the A761E the heavier one behind the V8s; mechanically the same design with different capacities, and the letter is the only place the difference is recorded.

It is a durable transmission with few characteristic faults, which changes what a symptom means: an odd change is far more often fluid, a speed sensor or an engine mount than the gearbox.

Toyota's WS fluid is required and is not the earlier Type IV. Using the wrong one produces a harsh or delayed cold engagement in a transmission that is otherwise healthy — the same trap as on the U151E and the A960E, and it runs in both directions across Toyota's range.