Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 298Get this manual
CLAMPSWIVEL BRACKETSDRIVE SHAFT HOUSING
Drive Shaft Housing and Dyna-Float Suspension
Refer to "Powerhead Removal" section to remove powerheadRefer to "Lower Unit Removal" in this section to remove lower unit
Removal and Disassembly
1Remove shift shaft from driveshaft housing by pulling straight up on shaft2Remove bolts which secure exhaust extension plate to drive shaft housingAfter bolts are removed, lift exhaust extension plate off drive shaft housing3Remove screws, which secure lower mount covers to drive shaft housing, then remove covers