The 4.2 V6 is a light duty engine for light duty trucks. The 4.9 I6 was a low powered heavy duty engine in a light duty truck. If you drive your pickup like a car and only occassionally haul a load the 4.2 will get better fuel mileage and last well over 200K - as long as its not a 1997 model. As long as you have a good radiator the 4.9 can take being abused and used hard much better.
The biggest problem with the 4.9 I6 is the MD50 (5 speed) transmission that is behind most of them. My company had 16 of the these - 8 failed with less than 50K on the clock.
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Today's Featured Article - Talk of the Town: How to Remove a Broken Bolt - by Staff. Another neat discussion from the Tractor Talk Discussion Forum. The discussion started out with the following post: "I have an aluminum steering gear housing with a bolt broken off in it. The bolt is about a 3/8" x 1 1/2" bolt. I've already drilled the center of the bolt out with about 7/64" drill bit the entire length of the bolt. Only one end of the bolt is visible. I tried to use an easy out but it wasn't budging and I didn't want t
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