Please make sure you are ordering the correct unit for your e30. There are two major versions. VDO versions and motometer versions. Click here to see how to check Also please make sure to order the correct unit. MP or KM
We offer a lifetime warranty to the original purchaser of our e30 odometer gears. So if for any reason you are not pleased or something happens. Let us know and we will make it right. Just because they are less expensive compared to "other gears" doesn't mean we don't stand by our product!