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7A–72 AUTOMATIC TRANSMISSION (4L30–E) Disassemble 1. Compress spring seat using the J–23075 spring compressor and J–23075–12 adapter tool. NOTE: Do not overstress the springs and seat. This will f Remove the tool. f Remove retaining ring (1). 248RS007 2. Release the spring seat (2). NOTE: Do not let the spring seat catch in the ring groove. f Remove spring seat (2) and springs (3). 3. Remove piston assembly (4) from third clutch drum (5). Inspection and Repair Visual check: If any damage, deformation or wear is found, replace the Operation check: Shake the piston and listen for check ball movement. Reassembly 1. The lip of the piston seal must point toward the front of the transmission. Lubricate the seal lip with f Install piston assembly (4) into the third clutch drum f Remove the seal installer. 248RS008 2. Install twelve springs (3) and spring seat (2). f Compress the piston springs, using the J–23075 CAUTION: Do not overstress the springs and seat. f Install spring seat retaining ring (1). f Remove the piston spring compressor and adapter. |