Master rebuild kit for the Toyota A760E and A761E six-speed - gasket and seal kit, friction plates and steel plates for Lexus IS350 and GS350.
A Lexus IS350 or GS350 that flares on the 2-3 or 4-5 upshift, shudders on light throttle, or hesitates going into reverse after sitting overnight is usually telling you the clutch packs in its six-speed automatic are worn out. This master rebuild kit is made for the Toyota/Aisin A760E and A761E six-speed rear-wheel-drive transmissions and contains a complete gasket and rubber seal kit, a friction plate kit and a steel plate kit. Manufacturer part number BL-GN03925. It weighs about 11 pounds and ships in a 15.7 x 15.7 x 3.9 inch box.
The A760E packs six forward gears into a compact rear-wheel-drive case, so each clutch and brake pack does more work per shift than in an older four- or five-speed. The transmission computer controls apply and release pressure through linear solenoids, timing each shift to within fractions of a second. That control depends on frictions with the right coefficient and pistons that seal tightly. Once the frictions glaze and the lip seals harden from heat, the computer keeps adding pressure to compensate until it runs out of range, and you start feeling flares, slips and harsh engagements. A seal-only overhaul kit cannot fix that; this kit renews the frictions and steels along with every seal and gasket.
Drain the pan and look at the fluid and the magnets. Brown, burnt fluid with friction debris means the packs need replacing and this kit fits the job; clean fluid with a single leak usually means seals only. A light-throttle shudder needs its own check, because a lockup problem can feel like a slipping clutch; our TCC shudder diagnosis guide explains how to separate the two, and shift flare vs. slip helps you describe exactly what the car is doing on a road test.
The kit is listed for the A760E and A761E, covering the Lexus IS250, IS350 and GS350 from 2006 through 2009 and the Toyota Crown from 2005 up. Lexus sedans of this period were built with more than one six-speed automatic depending on engine and drive layout, so read the transmission code on the ID plate before ordering and confirm it is an A760E or A761E. Hard parts and some clutch counts changed during production, so compare your drums with the kit before you discard old plates. If in doubt, send us your year and VIN. Other kits for this family, including the A760E master rebuild kit for 2006-2009, are on our Aisin transmission parts page.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
A complete gasket and rubber seal kit, a friction plate kit and a steel plate kit, manufacturer part number BL-GN03925. The filter, bushings, solenoids and hard parts are sold separately.
Yes, it is listed for both. Always confirm the code on your transmission ID plate first, since some Lexus sedans of this era used a different six-speed depending on engine and drive layout.
Lexus IS250, IS350 and GS350 from 2006 through 2009 and the Toyota Crown from 2005 up, when equipped with the A760E or A761E.
A light-throttle shudder at steady speed is often lockup clutch related rather than a slipping clutch pack. Check fluid condition and lockup slip with a scan tool before deciding on a full rebuild.
Toyota WS ATF. The level is set hot at the overflow check plug with the engine running, so follow the factory fill procedure rather than guessing.
