FIREBIRD MANUAL UPDATE PAGE OMITTED FROM MANUAL

VEHICLES AFFECTED: 1985 Firebird -------------

'The attached page was omitted from the 1985 Firebird service Manual. Please include these pages with your copy of the manual'.

TRIM HEIGHTS (@ CURB WEIGHT) ----------------------------

The following procedure should be followed before making any trim height measurement.

1. "Z" & "J" DIMENSIONS -------------------- a. Lift vehicle up approximately 1-1/2" at the front bumper and gently remove hands allowing vehicle to settle on its own. Repeat this lifting operation twice for a total of three times. Measure the "Z" & "J" heights in the settled position after the third lift,

b. Push vehicle down approximately 1 -1 /2" at the front bumper and gently remove hands allowing vehicle to settle on its own. Repeat this pushing down operation twice for a total of 3 times. Measure the "Z", "J" heights in the settled position after the third push.

c. The true "Z" & "J" height is the average of (a) and (b) for each side.

"D" & "K" DIMENSIONS

NOTE: Follow the same pattern as stated above for the "Z" "J" dimensions when measuring the "D" "K" dimensions except: Lift and push on the rear bumper.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.