Rear End - Factory Five Racing Mk3 Roadster Assembly Manual

grommet on the side of the tank.
7. The fuel tank is held in place with two straps that go under the tank and bolt to the body in front.
8. Place a floor jack under fuel tank and loosen the strap bolts.
9. Remove the bolts and lower tank enough to reach the high-pressure fuel lines and return lines located
on the top of the tank, on the passenger's side.
10. Use a fuel line disconnect tool or two small screwdrivers to remove the fuel line from the smaller low-
pressure return line on the fuel pump.
11. Disconnect the fuel line at the fuel filter by removing the small white clip with a regular head
screwdriver.
12. Pull the fuel vapor hose off the plastic fitting on top of the gas tank.
13. With the help of a friend, drop the gas tank and store on a level surface.
14. Re-install the fuel neck into the tank with the ring collar and screw that retain the fuel neck to the side
of the tank.
15. Remove the rear strap retainer by removing a pin that is contained inside a sheet metal box mount.
Use a small screwdriver or pushing tool to push on the pin from the side as you push upwards to align
it to the exit hole. The pin is a very loose fit and you will see that this is not very difficult.
16. You should have the tank, plastic cover, straps, fuel filter, fuel filter bracket and lines from fuel filter
to tank. Store these items.
ATTENTION:
• The rear end assembly weighs 225 lbs. Use caution when removing this assembly. Use extreme
caution when removing any compressed coil spring. Make sure not to damage, dent or crimp the
brake lines mounted to the rear end. If using an independent rear suspension, you will still need
to remove the quad shocks but you do not need the frame brackets.
TOOLS: Cordless drill, ¼" drill bit, socket set, combination wrenches, duct tape, tire iron, floor jack,
and jack stands.
PARTS: 8.8" rear-end assembly, complete with quad shocks and springs. Rear brake assembly w/lines.
All rubber bushings and OEM fasteners.
1. Remove the rear wheels.
2. Remove the flexible brake line from the body-mounted bracket.
3. Remove the body-mounted brake line bracket from the car.
4. The brake cable sheath is held onto the body on the left and the right sides at the point where the
sheath ends. A 13mm, 12 point wrench will help push the pins in so that the cable will release from
the socket. Slide the wrench over the cable to the bracket with the sleeve in it. Push the sleeve and
wrench towards each other, then pull the sleeve out of the bracket.
5. Put a jack on the flat part of the middle of the rear axle.
6. In the trunk/hatch area of the car, undo the nuts on the top of the vertical shock absorbers.
7. On the axle, undo the bolt that secures the quad shock using a 15mm socket. Move the shock out of
the bracket and replace the bolt so that it will not get lost.
8. Lower the jack slowly with the rear end so that they come down together.
9. When the rear end has dropped down low enough, you can easily remove the coil springs. Save the
rubber bushings above and below the springs.
10. Remove the OEM bolts and nuts from the lower rear Mustang control arm, where the arms are
mounted to the body/chassis.
11. Remove the OEM bolts and nuts from the upper Mustang control arm, where the arms are mounted to

Rear End

26
www.factoryfive.com 508-291-3443