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Discussion Starter #1
Anybody have to shorten the driveshaft to change rear end to a 8.5 10 bolt?
original 235, 3 speed
 

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Discussion Starter #3
I compared the 10 bolt to the original and the 10 bolt is roughly 1.5-2" longer from center axle tube to u joint cup center.
By the trans yoke pattern there was only 1" inward slide on the trans output shaft.
I tried to move the rear back 3/4 but the tank interfered.
Wondering if I've missed anything..
 

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I didn't make that measurement... you might be right, but my driveshaft installed with some 'movement'... Now I'm wondering if I have 'enough' movement...?
 

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Neither one of the tech articles I have say anything about shortening (or lengthening) the driveshaft.
 

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Discussion Starter #7
And I haven't seen anything either, that's why I'm asking. I just tried the install Sunday and this is what I found.
I expected there would be a lot of comments, and since there aren't I'm back under making sure I'm correct.
CNCDELAG did say he had to shorten his by an inch..
 

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Discussion Starter #8
I wanted to move the rear back 3/4 of an inch but couldn't because of the gas tank..
 

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And I haven't seen anything either, that's why I'm asking. I just tried the install Sunday and this is what I found.
I expected there would be a lot of comments, and since there aren't I'm back under making sure I'm correct.
CNCDELAG did say he had to shorten his by an inch..
I think the reason I had to shorten mine, is that whoever put in the side motor mounts put them to far back. I have very little clearance at the firewall even with a small cap distributor.
 
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