Frictions, steels and per-circuit seal bags to overhaul a Toyota A750E or A750F in a 4Runner, Tacoma, Tundra, Sequoia, FJ Cruiser or GX470.
This is the kit for someone who has already decided the A750 in their Tacoma, 4Runner, Tundra, Sequoia, FJ Cruiser or Lexus GX470 has to come apart. It replaces both halves of every clutch pack, the friction plates and the steel plates, and it supplies the seals and O-rings bagged and labeled by circuit, so you can re-seal one drum at a time without sorting a pile of identical-looking rings on the bench.
The listing includes a friction plate set, a matching steel plate set, seal and O-ring bags labeled by circuit (forward clutch, reverse, accumulator, 2nd brake, #2 brake and the others), metal-clad lip seals, Teflon piston and sealing rings, and a cork-style pan gasket. A filter is not listed, so plan on buying one.
Steels are the reason to choose this kit over a seals-and-frictions set. On an A750 that slipped long enough to cook its fluid, the steels usually come out blued, glazed or slightly coned. New frictions against heat-damaged steels will not hold their rated torque and will glaze again, so replacing both together is the safer rebuild. The A750E and A750F share the same five-speed gear train and clutch packs; the four-wheel-drive A750F differs only behind the gearbox, where it mates to the transfer case.
Before buying a rebuild kit, rule out the simple causes. Level the fluid at the overflow plug at the specified temperature, since many of these trucks have no dipstick and a pan service done wrong leaves them low. Scan for codes, keeping in mind that Toyota names the same A750 solenoid differently in its repair manual, parts catalog and scan data. TransGo also notes that worn valve body bores on the A750 cause shuttle shifts, 2-3 flare and slip, so a valve body can mimic worn clutches. Our Aisin slipping under load guide goes through the order to test things, and checking line pressure tells you whether the clutches are getting the oil they need.
Listed fitment: 4Runner 4.0L and 4.7L 2003-2008, FJ Cruiser 2007-2014, Sequoia 4.7L 2005-2008, Tacoma 4.0L 2005-2014, Tundra 4.0L and 4.7L 2005-2014, Lexus GX470 2003-2009, LX470 2003-2007 and Land Cruiser. Be careful at the edges of that list. The Land Cruiser used the A750F only in the 100-series from 2003 to 2007; the 200-series from 2008 uses the six-speed AB60F. Any Tundra or Sequoia with the 4.6L or 5.7L V8 has a six-speed and needs a different kit. Match the code on your transmission, compare the old plates against the new during teardown, or send us your year and VIN. More A750 parts are in our Aisin collection and the rebuild kit category.
Re-seal one drum at a time using the labeled bags, then air-check each drum after it is sealed and again once the assembly is stacked. Set clutch clearances with a feeler gauge against the factory figure instead of trusting the new pack height. Soak every friction in Toyota WS ATF before assembly. Inspect the hard parts the kit does not cover: a scored or cracked A750E input drum will destroy new frictions quickly, and worn bushings or a damaged pump should be fixed now. Order a Toyota filter and pan gasket kit since a filter is not included. Fill with Toyota WS only, set the level hot at the overflow plug, and reset adaptive learning before the test drive.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
A filter is not in the listed contents. The kit includes the cork-style pan gasket, so add a filter separately.
Yes. Both share the same five-speed gear train, clutch packs and seals covered by this kit. The four-wheel-drive A750F differs only at the rear where the transfer case mounts.
No. The 200-series Land Cruiser from 2008 uses the six-speed AB60F. Only the 2003-2007 100-series used the A750F.
Steels that ran in overheated fluid are often blued, glazed or warped. New frictions on bad steels slip and glaze again, so this kit replaces both.
Toyota WS ATF only, leveled at the overflow plug with the fluid at the specified temperature.
