Rebuilt Manual Transmission
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These letters are not used by Toyota, so where did they come from? Back in the mid 90s Marlin realized he needed a better way to distinguish between the many different W56 transmissions Toyota used from 1985-95. After having compiled the world's first and only RF1A Transfer Case Bible, Marlin created the now highly popular letter designations for the W56 transmission. The rest as they say is history!
Our Heavy Duty Transmissions have found great success in areas outside of Rock Crawling
from multiple Baja 1000 and SCORE off-road events to many Pro-Am Drift events
in 3RZ-FE, 7M-GTE, 1JZ-GE, 2JZ-GTE, and 1UZ-FE powered race vehicles.
Watch as our Heavy Duty R150R 2WD transmission gets
put to the Ultimate test by the FireGuys Racing Team!
Testing in Grand Junction, CO:||
Racing in Wendover, Nevada:|