GS - 1st Gen (1993-1997) Discussion about the first generation GS300

97 gs300 tranny swap

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Old 05-24-22, 02:08 PM
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206jzs147
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Default 97 gs300 tranny swap

Anyone know what i would need to swap my a350e transmission for a a340e transmission or just manual swap it for a r154? I have a 97 gs300 and the a350e has been slipping, im in high school still so i don't have a lot of money and just want to get the car running right again
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Offley94GS (01-19-23)
Old 01-19-23, 06:22 AM
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A350E[edit]

5 Speed Automatic.

Applications (calendar years):
  • 1996–1997 Lexus GS 300
NOTE: Replaced by A650E for 1998 model year.

Gear ratios for this transmission.
1st 2nd 3rd 4th 5th Reverse 2.804:1 1.978:1 1.531:1 1.000:1 0.705:1 2.394:1

Last edited by Offley94GS; 01-19-23 at 06:29 AM.
Old 01-19-23, 06:23 AM
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A340E (30-40LE)[edit]

The detachable bell housing, which attaches the main transmission case to the engine, has an engine-specific bolt pattern, which appears on its upper surface as cast-in letters. "J" indicates the straight-6 1/2-JZ engine, "U" the V8 UZ engine.

Applications (calendar years):
1 2 3 4 Rev 2.804 1.531 1 0.705 2.393

A340E (30-40LS)[edit]

OEM with 2JZ-GTE twin turbocharged engines only. This is the twin turbo only heavy duty version with some internal mods. The main case is similar to the common A340E but not interchangeable, the bell housing has "J3" cast into the upper surface, and is larger diameter to accept the larger torque converter and special flex plate. Maximum power using the stock internals should be limited to 500 (significantly higher than the standard A340E used with the 2JZ-GE normally aspirated engine)[citation needed].

Applications (calendar years):
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