Drag Race R4 Transmission ''93, Full Manual, Reverse Shift (Chevrolet) Available Soon. SKU. Available Soon items may take weeks for delivery. $2, Qty. Add . 4L60E transmission rebuild manuals (R4) Information about rebuild 4L60E (R4) transmission In the early 90s there was a problem of development of a heavy-duty automatic gearbox, which could be used in the Hummer cars equipped with the powerful petrol and diesel engines. Automatic Transmission, Forward Shift Pattern, Automatic, Manual Valve Body, Chevy, R4, Each. Part Number: TCI
The R4 is an extremely capable transmission. It is a great transmission for rock crawling with it's first gear. The best cores for a R4 build were from they had all the factory upgrades that solved the lubrication issues that plagued the '86 and earlier units. It's best to get a core K case from a GM 4x4. Shop R4 Automatic Transmissions and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. R4 Automatic Transmissions in-stock with same-day shipping. The R4 has a ratio in first gear, which is 20% lower than most transmissions. The 30% overdrive will give a 30 to 40% increase in gas mileage on the road when compared to a 3-speed transmission. The R4 is a popular transmission swap for muscle car restorations to add the overdrive option to update to a modern transmission.
The 4LE (and similar 4LE) is a series of automatic transmissions from General Motors. Designed for longitudinal engine configurations, the series includes 4 forward gears. It is an evolution of the Turbo-Hydramatic R4 (TH), originally produced in the block with hand pressure only. If the transmission does not sit flat against the engine, the converter is not fully engaged in the transmission or some other interference problem exists. WARNING: Do not attempt to pull the transmission Installation Instructions THR4 (4L60) Transmission with 30 tooth input shaft spline. The R4, also known as Turbo Hydra-Matic, is a 4-speed automatic transmission that was launched by General Motors in the early s. It is an upgrade to the 3-speed TH automatic transmission and older models of rear-wheel-drive cars. Also, the R4 transmission featured a 30% overdrive in 4th gear which brought about fuel economy.
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