If by "rear bleeders" you mean the wheel cylinder brake fluid bleeder valve for the brake system look behind the backing plate (that's the part that has the brake shoe's attached to it). Jack you car up & support it with jack stands crawl under the car at the rear end look on top of the rear end housing & you'll see the brake lines that run to the wheel brake cylinders. Usually just above where they attach to the wheel cylinder is the bleed screw. Be warned if the cars that old spray some penetrating oil on them (W-D40) and wait for a little while... I've broke off my share.
fuel filter is located above the rear axle
The fuel filter is located under the vehicle, between the rear axle and the fuel tank.
On a 96, coil packs (3) are located above rear valve cover, near firewall.
what is the ratio of gears in a 1986 cutlass
The 1987 Oldsmobile Cutlass Supreme was rated 350 horsepower with the with the V8 engine. It was last year that the Cutlass was a rear wheel drive vehicle.
4x10
the three coil packs are located above the rear rocker cover, near the firewall. -- In the way to replace the spark plugs.
Front = 3 & half, Rear = 4x10
Yes
Equalizer valve not allowing fluid flow to rear?
Depends if it is the 3.1 or 3.4. I have a 3.4L and I let the dealer do it. The car had to be raised and the engine lowered since the alternator is located on the rear of the engine towards the bottom. See question regarding the 1995 Cutlass Supreme . Same applies unless you have the 3.4 version of engine.
The low side service port to recharge the AC on a 1997 Olds Cutlass Supreme is at the rear of the engine. It is close to the firewall.