WIRE WHEEL COVER AND ALUM.WHEEL OPTION INFORMATION

This bulletin outlines information for 1986 De Ville, Eldorado and Seville wire wheel cover and aluminum wheel options. The information is presented in two sections:

Section I: Wire Wheel Cover (Option N91)

Section II: Aluminum Wheel (Option PD8 & PG4)

1. WIRE WHEEL COVERS (N91)

A. Wire Wheel Cover Packages

Wire wheel covers for the 19866 De Ville, Eldorado and Seville are produced by two companies -- I.T.T. Thompson (Figure I) and N.I. Industries (Figure 2).

1996 DE VILLE, ELDORADO AND SEVILLE WIRE WHEEL COVERS PRODUCED BY N.I.INDUSTRIES

Wire Wheel Cover Packages are shipped in the trunk of the car and, at the time of new car delivery, these packages should be inspected for missing, damaged, or incorrect parts. Any discrepancies should be noted on the delivery receipt and a transportaion claim should be filed, if necessary.

N.I.Industries Wheel Cover Package

1. Four locking wire wheel cover* assemblies (P/N 1633879)

2. Four emblem assemblies( P/N 1632243) *

3. Four lock nuts (see chart on page 3)*

4. Four retainer assemblies (P/N 1632244 for De Ville and P/N 1634016 for Eldorado & Seville)

5. One lock key wrench (See chart on Page 3)

6. One ID/Registration Card

7. Removal/Installation instruction label

8. Four tire valve extensions (P/N 9422872)

I.T.T. Thompson Wheel Cover Package

1. Four locking wire wheel cover assemblies* (P/N 1633880)

2. Four emblem assemblies (P/N 1632247)*

3. Four lock nuts (see chart on page 3)*

4. 20 positioning inserts (P/N i633790)

5. Four retainer assemblies (P/N 1632248 for De Ville only)

6. One lock key wrench (see chart on page 3)

7. One ID/Registration Card

8. Removal/Installation instruction label

9. Four tire valve extensions (P/N 9422872)

* These parts come assembled as part of the Wire Wheel Cover Package, but are only available from GMWDD individually using the listed part numbers.

B. Lock Nuts and Lock Key Wrenches

Lock nuts and lock key wrenches for the DeVille, Eldorado and Seville may be produced by either I.T.t. Thompson or N.I. Industries (refer to Figures 1 and 2.) Lock nuts and lock key wrenches are color coded and may be ordered from GMWDD using the following part number information:

CHART: LOCK NUTS AND LOCK WRENCHES

I.T.T. I.T.T. N.I. N.I. Color Lock Nut Wrench Lock Nut Wrench ----- -------- ------ -------- ------ Red 1634304 1634298 1630024 1630010 Gold 1634305 1634299 -- -- Blue 1634306 1634300 1630026 1630012 Green 1634307 1634301 1630025 1630011 Black 1634308 1634302 1630029 1630014 Silver 1634309 1634303 -- -- Yellow - 1630027 1630013 Orange -- 1630029 1630015 Gray -- 1630033 1630019 Metallic -- 1630032 1630019 Dk. Brown -- 1630031 1630017 Tan - 1630030 1630016

C. Wheel Identification and Wire Wheel Cover Installation Procedures

1. Wheel Identification

Vehicles equipped with the wire wheel cover option may use either fabricated aluminum wheels or steel wheels. Fabricated aluminum wheels can be described as having a thicker flange than steel wheels. Additionally, magnets will not be attracted to fabricated aluminum wheels.

2. Wire Wheel Cover Installation Procedures

When installing an I.T.T. ndustries' wire wheel cover (Figure 1) on a steel wheel, the "positioning inserts" must be installed.

When installing an I.T.T. Industries' wire wheel cover on an aluminum wheel the "positioning inserts" should be omitted.

When installing an N.I. Industries' wire wheel cover (Figure 2) on an aluminum wheel or a steel wheel, the "positioning clips" must be in the correct position (Figure 3).

D. Lock Nut Replacement

1. I.T.T. Wheel Cover Lock Nut Replacement Procedure:

Removal

a. Drill out the two rivets on the cover retaining the lock nut, refer Figure 1.

b. Remove lock nut

Installation

a. Position lock nut on cover

b. Position retainer on the cover and install new rivets

2. N.I. Wheel Cover Lock Nut Replacement Procedure:

a. Position lock nut out from the rear of the wheel cover using a drift pin.

Installation

a. Position lock nut under two of the three retaining clips on the wheel cover

b. Press the lock nut under the third clip using a drift pin.

II. ALUMINUM WHEELS (PD8 AND PG4)

A. Aluminum Wheel Parts

The aluminum wheel option includes:

Four Wheels Four Hub Caps Four Locking Nuts One Lock Key An ID/Registration Card An Instruction Sheet

At the time of new car delivery, the vehicle should be inspected for missing, damaged or incorrect aluminum wheel components. Any discrepancies should be noted on the delivery receipt and a transportation claim should be filed, if necessary.

B. Missing Parts

Missing parts can be handled in one of the following manners:

1. Hub Caps Missing

Hub caps can be ordered from GMWDD using the following parts information:

Hub Cap Part Number

FWD De Ville:

W/14" Wheel 1629618 W/15" Wheel 1631381

Eldorado and Seville 1631381

2. Locking Nuts Missing

Individual locking nuts may be obtained from McGard by submitting a written request on dealership stationery. Include the color code of the lock key and a check for $4.50 for each locking nut requested. These requests should be mailed in the McGard envelopes provided in the McGard/Cadillac Dealership Packet.

3. Lock Key Missing or Incorrect Lock Key

Determine the color code from the ID/Registration Card or by using the McCard Master key set*. Order lock key using the McGard/GM Dealership Order Form, copies of which are included in the McGard/Cadillac Dealership Packet.

*McCard Master keys and McGard/Cadillac Dealership Packets were sent to all dealers in 1979.

4. ID/Registration Card

ID/Registration Cards are available from McGard at no charge using a McGard/GM Dealership Order Form.

5. Instruction Card

If an instruction sheet is missing, a copy can be made from another lock key package or instructions can be found in the Owner's Manual.

C. Dealership Packet and Master Key Sets

Dealers who need a McGard/Cadillac Dealership Packet, and/or a McGard master key set should write or call the following:

Consumer Service McGard 852 Kensington Avenue Buffalo, New York 14215 Phone: (716) 833-6120 ATTN: D. Tyler

Dealers may obtain order forms or pre-paid McGard envelopes by sending a request to McGard on dealership stationery. These written requests must include an authorized signature.

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.