zx4

My 5 speed 2005 ST has developed a concerning sound in the past few days. A couple really. But the most noticible is a sort of groaning/scraping noise that oscillates, and increases in frequency with speed (but sort of weirdly, with bumps/suspensions travel/turns). It kind of sounds like a shot...

I JUST bought my car, and I am having noise from my transmission, and want to get it rebuilt for the most part. Looking at getting a bearing/seal kit, but I've run into an issue. All of the kits I find ask if I have an 18.5mm or 20.5mm rear pinion bearing. I have zero clue how to figure out...

I have a 2007 ZX4 ST. Just want some opinions as to which oil performs the best. This is my daily driver, and I live in the Midwest, so temperatures are a factor. Car is completely stock.

Hey everyone, I’m new around here. Just bought a zx4 ST with the intentions of modding it, any thoughts on good first mods? I’ve heard that the suspension on 06+ models of the old ST’s are pretty soft.

My 2007 zx4 has started making a loud rumble in reverse that gets louder when the break is applied, anyone else have this issue? I'm not sure if it means reverse is going out or what but it really doesn't affect the way it drives. I would just like to figure out why its making the rumble and how...