MILLER ALTERNATIVE TOOL 5058A SPRING COMPRESSOR5058A – SPRING COMPRESSOR – USE THIS SPECIAL TOOL TO COMPRESS THE 2-4 PISTON RETURN SPRING DURING REMOVAL OR INSTALLATION OF THE RETAINING RING IN A-604, 41TE, 41AE, 42LE AUTOMATIC TRANSAXLES. AND 42RLE TRANSMISSIONS. LR R20-S22L J/R ALT 18