How to Measure Bolt Pattern on 4 Bolt Trailer Hub

Question

Question:

I need to see what bolt pattern is a 4 bolt on 3 1/2 stud spacing thanks in advance

asked by: Brandon

0

Expert Reply:

The reason your bolt pattern measurement doesn't seem to line up with anything is because you're measuring between the adjacent bolts. The correct way to measure with an even number of bolts is center to center between opposite bolts on the hub. Once you measure this way you will likely find that you have the standard 4 on 4 bolt pattern. If you're looking for a 10" wheel like the # AM20053 you looked at with a 4 on 4 bolt pattern you could use the # AM20041.

I have attached a help article below which explains how to measure both even and odd bolt hole patterns for your reference.

expert reply by: Robin H

0

4-Bolt Trailer Hub.
(click to enlarge)

Answer 1

For the Kenda 215/60-8 Bias Trailer Tire and 8 Inch Wheel, #AM3H320, it measures 18.3 inches in diameter and it is 8.9 inches wide. This is going to have a smaller diameter than a 5.30x12 tire and wheel but it will be much wider, up to about 4 inches…

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Answer 2

I may have an option for you but we do not carry 4.80x10 or 5.20x10 trailer tires as this is an extremely uncommon tire size. The only tires we have confirmed to fit a 10" wheel are a 205/50-10 or a 205/65-10 tire. For a 205/50-10 tire I…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 5

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Answer 6

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 7

The two sizes you mentioned are pretty similar and fit many of the same 15 inch wheels. The 205/75-15 fits rim widths of 5 inch to 6 inch whereas the 225/75-15 fits widths that are 5 inch to 6-1/2 inch. The 205 is 27.1 inches tall and the 225 is 28.4…

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Answer 8

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 9

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 10

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 11

The BTR and BT8 denotations refer to the spindle, not the trailer hub. The difference between a BTR and BT8 spindle is that the BTR spindle uses a 1.063" diameter L44649 bearing and the BT8 spindle uses a 0.99" diameter L44643 bearing. In…

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Answer 12

Hey Clarence. There's no way to look at a tire or wheel and tell if it's a 5 on 4-1/2 or a 5 on 5 but you can take a real quick measurement to figure it out. If you'll look at the picture below you'll see a wheel with a red line on…

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How to Measure Bolt Pattern on 4 Bolt Trailer Hub

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