The crank bolt on my '89 was tough, but two of us did it.
One guy goes underneath the car and removes the little dust cover that covers the flywheel. Stick a huge screw driver in there and have that person hold it. Luckily we had a closed end wrench with the perfect dip in it to allow it to go onto the crank bolt and stick out the top of the engine bay with lots of room to move it. We then took a good 3 or 4 foot long piece of exhaust pipe and put it on the end of the wrench. It came off in one big push.
1996 Pontiac Bonneville SSEi - 190, 000KM - L67 3800 - 2.93 Final Gear Ratio
- Rebuilt 4T60-HD w/transgo shift kit, 3.4" ZZP MPS, Oversized tensioner, NGK TR6'* @0.55", Belden Premiums, Magnaflow F-Body Muffler, Magnaflow Hi-Flow Cat. & resonator delete, CAI W/K&N RX-4750, Drilled 180 T-stat, Aeroforce Scan Gauge, Pioneer DEH-P7800MP, MTX Thunder Dome TDX6902 6x9'* on Rear Deck. MB Quart 6.5 up front. MTX 12" Sledgehammer w/custom ported box, 35% Tint all the way around.
1989 Pontiac Bonneville SSE
- 222, 000KM - LN3 3800 - 2.97 Final Gear Ratio - RETIRED