Re: Drilling leaf springs
[Re: mopar dave]
#2491684
05/03/18 09:02 PM
05/03/18 09:02 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
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master
Joined: Sep 2014
Posts: 4,457
Washington
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Picked up my original front sections from the shop. Got them installed. With a 6* shim i now have 4* pinion to shaft angle. Gained some tire clearance, but now may need a new drive shaft. The slip yoke is 1.75" from being all the way into the tail shaft. Didnt measure the yoke, but i would guess its 6 or 7" long where it goes into the tail shaft. That still gives me 4-5" of sline contact. Enough? That's borderline.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Drilling leaf springs
[Re: mopar dave]
#2491731
05/03/18 10:38 PM
05/03/18 10:38 PM
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Joined: May 2011
Posts: 4,492 northern,Ohio,USA
Clanton
master
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master
Joined: May 2011
Posts: 4,492
northern,Ohio,USA
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I agree it is borderline but not that you could not drive with it.There will be a vibration if there is a real problem and could try it going slower.I think the runout was .060 on the slip yoke
Last edited by Clanton; 05/03/18 10:40 PM.
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Re: Drilling leaf springs
[Re: mopar dave]
#2491762
05/03/18 11:37 PM
05/03/18 11:37 PM
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Joined: Jan 2003
Posts: 6,591 Canton, Ohio
Sport440
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Picked up my original front sections from the shop. Got them installed. With a 6* shim i now have 4* pinion to shaft angle. Gained some tire clearance, but now may need a new drive shaft. The slip yoke is 1.75" from being all the way into the tail shaft. Didnt measure the yoke, but i would guess its 6 or 7" long where it goes into the tail shaft. That still gives me 4-5" of sline contact. Enough? The splines don't start on the inside of the yoke until about a 1.25" or more in. So you have a lot less spline engagement then you think without truly measuring. Your borderline all right. You probably have less then 2",s of spline contact
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Re: Drilling leaf springs
[Re: Sport440]
#2491768
05/03/18 11:52 PM
05/03/18 11:52 PM
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Joined: May 2011
Posts: 4,492 northern,Ohio,USA
Clanton
master
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master
Joined: May 2011
Posts: 4,492
northern,Ohio,USA
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Picked up my original front sections from the shop. Got them installed. With a 6* shim i now have 4* pinion to shaft angle. Gained some tire clearance, but now may need a new drive shaft. The slip yoke is 1.75" from being all the way into the tail shaft. Didnt measure the yoke, but i would guess its 6 or 7" long where it goes into the tail shaft. That still gives me 4-5" of sline contact. Enough? The splines don't start on the inside of the yoke until about a 1.25" or more in. So you have a lot less spline engagement then you think without truly measuring. Your borderline all right. You probably have less then 2",s of spline contact I think my Dana yoke has splines to the opening,just saying
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Re: Drilling leaf springs
[Re: mopar dave]
#2491783
05/04/18 12:35 AM
05/04/18 12:35 AM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I figured i can street drive it as long as it doesn't vibrate and i don't think it will. It fits very snug. Whats the worst thing that could happen at the track? It's far enough out of the shaft to wobble and then BOOM out goes the drive line.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Drilling leaf springs
[Re: mopar dave]
#2492069
05/04/18 04:42 PM
05/04/18 04:42 PM
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Joined: May 2011
Posts: 4,492 northern,Ohio,USA
Clanton
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master
Joined: May 2011
Posts: 4,492
northern,Ohio,USA
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I checked mine and I only have 2 1/2" of spline contact with the output shaft That is half of the total spline in the yoke.I twisted the spline and just replaced the yoke and now think I mistook a longer drive shaft when the splines were just stopping the yoke from going on more.
Last edited by Clanton; 05/04/18 04:44 PM.
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Re: Drilling leaf springs
[Re: mopar dave]
#2492073
05/04/18 04:46 PM
05/04/18 04:46 PM
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Joined: May 2011
Posts: 4,492 northern,Ohio,USA
Clanton
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master
Joined: May 2011
Posts: 4,492
northern,Ohio,USA
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I only have about an inch of rust showing on mine. Yep mine is worse than yours. ps:I will make the drive shaft longer instead of taking out the 1" shim that moved the springs back.
Last edited by Clanton; 05/04/18 05:36 PM.
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Re: Drilling leaf springs
[Re: mopar dave]
#2492276
05/05/18 01:48 AM
05/05/18 01:48 AM
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Joined: Jan 2003
Posts: 6,591 Canton, Ohio
Sport440
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master
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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I have a rubber dust boot on the end of my tail shaft and the main shaft protrudes about a 1/4" past that rubber boot as well. I know of two sizes of dust boots, theres a shorty 1" boot or so and a longer 2.5" boot or so. I'm sure they are mated with the correct yoke. Not sure about the specifics about the differences. But originally these were and are street production cars. I myself used the shorty boot to help achieve about 3/4 to 1/2" clearance from bottoming out the yoke. Ive been there with the wider clearances of the driveshaft wobble and actually loosing one. Was fortunate that I didn't catapult when I lost the loose clearance one.
Last edited by Sport440; 05/05/18 01:49 AM.
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