One of the most common calls we get about wheel spacers starts with, ‘They didn’t fit.’ Nine times out of ten, the bolt pattern or the thread pitch did not match the machine. Spacers are simple parts, but those two numbers have to be right.
Our Wild Boar Wheel Spacers – 2” 4/156 3/8×24 are a pair of 2-inch billet aluminum spacers. Here is how to make sure they are the right pair for your ATV or UTV.
What 4/156 means
The bolt pattern is written as the number of studs and the diameter of the circle they sit on. A 4/156 pattern means four studs on a 156mm circle. Your hub, the spacer and your wheel all have to share that pattern. A spacer for 4/137 or 4/110 will not line up, even though it looks almost the same in a photo.
You can measure a four-stud pattern from the center of one stud straight across to the center of the stud opposite it. Your owner’s manual or the wheel listing for your machine is the easier way to confirm it.
Why the 3/8×24 thread matters
The 3/8×24 number describes the stud thread size and pitch. The spacer bolts to your hub using your existing studs, then the wheel bolts to the spacer’s own studs. That means two things have to match: the spacer’s lug nuts need to fit your hub studs, and your wheel lug nuts need to fit the 3/8×24 studs on the spacer. Mixing a metric thread and a standard thread will strip parts fast.
What 2 inches gets you
Spacers push the wheels out from the hubs. With 2 inches per side, the machine gets a wider stance for more stability on side hills and in ruts, and extra room to run larger tires without rubbing suspension parts. They come as a pair, so order two pairs to cover all four corners.
Quick checklist before ordering
- Confirm your bolt pattern is 4/156.
- Confirm your stud thread is 3/8×24.
- Check that your wheels and tires will clear fenders once pushed out 2 inches.
- Plan on two pairs if you want all four wheels spaced.
If any of those are a question mark, call Wild Boar at 850-912-4350 and we will help you find the right spacer.
