[Robert]

Engine cleanliness is not a factor in this. It’s a poor design in the part where the upper bushing gets marginal lubrication.

My 2000 Ranger has 170,000 miles and has always gotten 5W20 oil and a Motorcraft FL400S filter every 3000-4000 miles.
When I did my water pump at 150,000 miles, I pulled the timing cover and replaced the timing chain while I had the front of the motor apart anyway. The inside of my engine has zero sludge and the cam synchro started its chirping at 110,000 miles and needed a replacement.

See here for more info:

http://www.rangerpowersports.com/forum/3-0-v6-tech/203433-cam-synro.html

[Robert]

The volume and port dimensions are the things most important. The box can be changed a little in each direction to fit where you need. As long as the internal volume is close, it will sound decent.

[Robert]

Eclipse 8V pre out head unit
JL Audio XR 5X7’s all around
JL Audio 10W7 sealed
JL Audio 500/1 on the sub
JL Audio 300/4 on the highs

https://youtu.be/cCj9_eB4ik0

[Author]

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