Vehicles that have been modified are going to make some interesting noises versus unmodified rides. Some of these noises can be a sign of trouble, while others are just a part of what you deal with when you drive a custom vehicle. Gear rollover is something that might pop up if you install an aftermarket manual transmission, and it’s not as serious as it sounds.
There’s a lot of work that goes into bolting a new aftermarket manual transmission into your vehicle. After you complete the installation, new noises might be heard coming from under the vehicle that might sound like big problems. Numerous things like a part of the driveline touching the transmission tunnel, unbalanced parts, the type of bushings used, or other items could be generating strange noises or vibrations.