74-85 E Shaft
06-12-2004, 01:45 PM
#6
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Join Date: Nov 2001
Posts: 2,284
I don't know about the FD shaft, but the FC shaft had that stupid oil pellet garbage in it which means it needed to be machined to hold it. That means less material in the shaft which means less strength.
Then again, I've never heard of the front of a shaft breaking. It's always the rear of the shaft that breaks. Maybe it's because of the larger circumference of the flywheel? Perhaps an auto counterweight would put less stress on the shaft because the imbalance is closer to the centerline of the shaft. Remember that the stock flywheels have the imbalance at the outer edge near the starter ring gear.
Then again, I've never heard of the front of a shaft breaking. It's always the rear of the shaft that breaks. Maybe it's because of the larger circumference of the flywheel? Perhaps an auto counterweight would put less stress on the shaft because the imbalance is closer to the centerline of the shaft. Remember that the stock flywheels have the imbalance at the outer edge near the starter ring gear.
06-12-2004, 01:49 PM
#7
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Join Date: Jan 2004
Location: Columbia IL/St. Louis MO
Posts: 2,748
Originally Posted by Jeff20B' date='Jun 12 2004, 02:45 PM
I don't know about the FD shaft, but the FC shaft had that stupid oil pellet garbage in it which means it needed to be machined to hold it. That means less material in the shaft which means less strength.
Then again, I've never heard of the front of a shaft breaking. It's always the rear of the shaft that breaks. Maybe it's because of the larger circumference of the flywheel? Perhaps an auto counterweight would put less stress on the shaft because the imbalance is closer to the centerline of the shaft. Remember that the stock flywheels have the imbalance at the outer edge near the starter ring gear.
Then again, I've never heard of the front of a shaft breaking. It's always the rear of the shaft that breaks. Maybe it's because of the larger circumference of the flywheel? Perhaps an auto counterweight would put less stress on the shaft because the imbalance is closer to the centerline of the shaft. Remember that the stock flywheels have the imbalance at the outer edge near the starter ring gear.
06-16-2004, 05:54 PM
#9
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Join Date: Oct 2003
Location: I don't really exist ...
Posts: 500
i think i remember reading somewhere (either in a book, magazine or on another forum) that there are no appreciable differences in the eccentric shafts in terms of strength. however, just for the sake of the thermal pellet, and the minor pain of having to seek an alternative plug for it, many people prefer using the older ones.
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