[455Grandville]

Originally Posted by The Boss

Just speaking from my own experience, my 97 F-350 7.3 spun the guts of it's automatic transmission at 74,000 miles and then promptly ate it's 3rd cam position sensor. My 2000 F-350 7.3 is still pushing hard on it's original automatic transmission with 214,000 miles and has only munched one cam position sensor - about 1000 miles ago.

I can tell you I ask a lot from my trucks and they have NEVER let me down. I have pulled many a lumber truck out of the mud (including a cummins powered boom truck) and have given several cement & tri-axle dump trucks the extra umph they needed to get out of each of their predicaments.

Although I'm no longer looking to test my current transmission I'm sure if needed it would be up to the task.

Seems damn near every auto behind any diesel pickup is junk, 'cept the D-Maxx

Originally Posted by 74gtoguy

never any bad cummins 5.9 blocks, the dowel pin is a minor problem easy and cheap to fix before it happens
cummins have easily done a million miles with only valve adjustments and pms

Certain years had cracking issues (the blocks cast in Brazil I believe)

http://www.locknstitch.com/1999_to_2...lock_crack.htm

We put one in a nice Dodge that cracked out of the blue for no reason, owner didn't abuse it.

I worked on a 6.9 IDI that had a pushrod go through the rocker arm just a few hundred

miles short of a 1,000,000 miles.