A:AnswerThe speakers you have are 5.25" (correct me if I am wrong), unless there is an adapter to fit the speakers, you are looking at 1.25" difference and they only have a slight tolerance of the size of the speakers, hope this helps!
A:AnswerYour head unit should be 4ohms most of the time, it may be greater on more specialized piece of equipment, but normally stock and aftermarket head units are 4ohms. You will be fine hooking these up.
A:AnswerCheck to see if your current speakers (Chevrolet factory speakers) are 6 1/2" speakers, then they should fit - no problem. I installed them in the rear doors of my 1995 Chevrolet Blazer - which had 6 1/2" speakers from the factory.
A:Answerno purchase speaker adapters brackets remove oem speakers you will need to drill new mounting holes then attach with screws and speed nuts supplied with new speakers use speaker grills already in your door panel no cutting of new holes necessary
