Will Karrier ST225/75R15 Radial Tire with 15 Inch Aluminum Wheel, # AM32669 Fit 1974 Avion Trailer

Question:

I need to buy 4 code AM32669 for my 1974 Avion travel trailer. She is set up with a Mor/Ryde suspension system with brake drum max 10.09 in. Bore size is 3-5/8, Bolt centers 5-1/5. with 1/2 X20 bolts. Question is-do you have the lug bolts to fit this set up, also would need center cap for the Aluminum wheel. Thank You

asked by: John C

Expert Reply:

The Karrier ST225/75R15 Radial Tire with 15 Inch Aluminum Wheel - 6 on 5-1/2 - Load Range D, part # AM32669, is a 15 x 6 inch wheel with a 6 on 5-1/2 inch bolt pattern. The center hole diameter is 4.25 inches.

The center cap for this wheel is either the Excalibur Chrome Center Cap, part # 425EZ. It fits the center hole diameter of 4.25 inches.

You have mentioned a bore size of 3-5/8 (3.625) inches and lug bolts to hold the wheel on. If you are using lug bolts, like the Wheel Bolts, 1/2 Inch x 1 Inch, 60 Degree, part # RG02-020, on your trailer you will need to use a wheel that is hub centric. Hub centric means the wheel will have to have the exact size center hole size, since it will need to center on the hub. I would not have a wheel with the 3.625 center hole size.

A trailer that uses lug nuts to hold the wheel on is lug centric, which means the wheel will center off of the wheel studs on the hub. A lug centric wheel will not require the center hole diameter to match exactly because the wheel is centering off of the wheel studs on the hub, so then you can use a larger diameter center hole diameter without any problems.

You will also need to measure your bolt pattern on your trailer to make sure the 6 on 5-1/2 inch pattern of the aluminum wheel will match your bolt pattern. I am including a link to a FAQ page on how to measure your bolt pattern.

expert reply by: Jeff D