The Alcoa "Classic", Part No. 160231 is the only Aloca wheel generally acknowledged as acceptable for use on the GMC motorhome. Aloca also makes an "LTS" model wheel with "spokes", but it has significantly less load rating than the "Classic". Stress to the dealer that you want six 160231 wheels. The dealer or his distributor may try to sell you 160232 wheels for the rear. The difference between the 160231 and 160232 is the latter is polished on the concave side for use on the rear of "dually" trucks. |
The center cover is Alcoa Part No. 001611. Note the thin flange around the bottom of the cover. Since the wheels are hub centered, the cover is held on by the washer on the lug nuts. You will see several warnings on the package not to attempt to push the cover through the center hole of the wheel. Be sure to specify six 001611. For "dually" applications, Alcoa sells a rear cover 001612. This cover is approximately 5 inches tall to cover the extended hub on "dually" trucks. |
The correct lug nut is Alcoa Part No. 139987. Since the wheel is hub centered, the wheel stud holes are not chamfered and the lug nuts have a free spinning washer on them. Use of non-Alcoa lug nuts will invalidate the wheel warranty. |
The lug nut cover is Alcoa Part No. 000190. Aloca calls this their "Hug-a-Lug" cover as it has a spring loaded insert which grips the lug nut. |
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