4L65E Archives - Transmission Digest
GM 4L60, 4L60/65/70-E Extra Wide Intermediate Band

Ideal for 4×4, heavy-duty and commercial use in GM 4L60 and 4L60/65/70-E units, Sonnax drop-in extra-wide intermediate band (p/n 77700-01K) is the ONLY wide band available that features OEM style high-energy material, according to the company. It’s 15% wider than the OE band, provides 15% more holding capacity, and features a 60% thicker case anchor

GM 4L60/65/70-E AX Code Accumulator Valve Sleeve

Recover hydraulic control and renew shift operation in GM 4L60/65/70-E transmissions with the new Sonnax drop-in AX code accumulator valve sleeve (p/n 77754-61). Features include: direct replacement sleeve replaces OE sleeves with “AX” code only; renews accumulator action and quells leaks; and the drop-in Zip Valve installs quickly and easily. 

GM 4L60/65/70-E Front Planet to Reaction Shaft Thrust Bearing

This new Sonnax front planet to reaction shaft thrust bearing (#74238-01) is an OE replacement for GM ’07-later 4L60-E, 4L65-E and 4L70-E units.

4L60E/65E/70E Input Carrier Change

The input carrier and the reaction carrier shaft were modified to accommodate the updated bearing.