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  #46 (permalink)  
Old 04-18-2011, 07:39 AM
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I just found a site that has replacement axles and shows the lenght of each of them...

The driver side or left is 30 11/16"
The passenger side or right is 27 13/16"

.... im thinking this is gonna narrow the rearend housing too much... but i won't know till i get my car over and do some measurements... hopefully tonight i will have a chance to get some measurements made so i can get a game plan set here.

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  #47 (permalink)  
Old 04-23-2011, 06:44 AM
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Just a quick question. I am looking to do the same thing to my 8.8. But, I read that installing an axle from the passenger side to the drivers side is not a good idea because the torque is being applied opposite the way it was applied when installed and driven.( being a used axle, not new) It will be twisting the axle backwards, and that it will fatigue the metal....? I'm not a metallurgist. What do you guys think?
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  #48 (permalink)  
Old 04-23-2011, 07:55 AM
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Quote:
Originally Posted by Hot Not Rat 1934
Just a quick question. I am looking to do the same thing to my 8.8. But, I read that installing an axle from the passenger side to the drivers side is not a good idea because the torque is being applied opposite the way it was applied when installed and driven.( being a used axle, not new) It will be twisting the axle backwards, and that it will fatigue the metal....? I'm not a metallurgist. What do you guys think?
i have read that somewhere also, i would probably use a new axle so its not an issue.
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  #49 (permalink)  
Old 04-23-2011, 07:46 PM
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I hope someone chimes in about that cause now I'm concerned.
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Old 04-24-2011, 05:16 AM
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We need someone to debunk the myth.

How much torque is gonna be applied to it?
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Old 04-24-2011, 07:35 AM
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We need someone to debunk the myth.

How much torque is gonna be applied to it?
over 550 in my case, with some sticky tires on occasion.
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  #52 (permalink)  
Old 05-30-2011, 10:55 AM
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Okay so i got the brackets in for the 9". i got the axles and rotors redrilled for my bolt pattern. Before I removed the stock rearend i made two bob weights on each wheel well to mark where the center of the axle was. I then measured over from the string to the frame rail and got 12 1/4" on both sides. This would tell me that the body is even with the frame. I also measured the distance from the center of the hub cap to the string and found that the stock rearend was offset by 1/2" to the passenger side... I will center the 8.8 for sure.

The stock 7.5" rear end has 2.75" axle tubes as opposed to my 3.25" so the car will set .25" higher than before..

I want to tack the spring cups in place so i can set the car down on the rearend and let the springs collapse to the ride position... depending on how the car sits i may buy lowering spring if it sits too high. I want to do this to check for the driveshaft and see if it will hit anything... i already see the passenger side muffler is going to be a problem but other than that cant tell until the car is sitting on the rearend. I was gonna chock the back tires tack the spring cups and then lower the weight of the car on the spring. The front tires are chocked so it shouldnt move....

Another issue I noticed was that now the car is sitting higher the plum bobs i put will be tilting to the front.... Whats a better way to line the rearend up length wise... measure center of hub from the front to the rear and set the wheelbase to what the factory was? This is my first time taking on any project of this magnitude so I am going slowly step by step and measuring everything a thousand times lol.


Because the mount kit I got is designed for a ford 9" that has 3" axle tubes I am also having 1/8" cut off the lca mounts to make up the difference between the 9" and 8.8" and will have the angle of the lca match closer to what it should be. Hopefully today at some point ill get some pics together and post what I have so far...



sorry if i rambeled on too much or it wasn't an organized paragraph im just trying to get as much info out there to help you guys help me ! thanks again for everything so far.
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Old 05-30-2011, 02:01 PM
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The best way (IMHO) for centering in the wheel well would be by putting a wheel on the hub and taking a look.

Of coarse if the car is too far down on the front for your plumb bob, lifting the front could level it out.
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  #54 (permalink)  
Old 05-30-2011, 02:54 PM
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This thread is a great read with some great info, Good Luck zildjian4life218
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Old 05-31-2011, 09:03 AM
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Quote:
Originally Posted by 123pugsy
The best way (IMHO) for centering in the wheel well would be by putting a wheel on the hub and taking a look.

Of coarse if the car is too far down on the front for your plumb bob, lifting the front could level it out.
Im not as concerned of centering the wheel in the well as I am of putting it in the stock location.... but then again I am sure it will look better in the center of the wheel well. Where is the best place to put the 8.8 rearend?

Last edited by zildjian4life218; 05-31-2011 at 09:21 AM.
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  #56 (permalink)  
Old 05-31-2011, 09:20 AM
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Originally Posted by ProStreetRob
This thread is a great read with some great info, Good Luck zildjian4life218
Hopefully with more info to come! thanks
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  #57 (permalink)  
Old 05-31-2011, 08:20 PM
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Driver side wheel mounting surface to pinion

Passenger side wheel mounting surface to pinion

Driver side: frame rail to Bob string

Passenger side: frame rail to bob string

Driver side: wheel stud to bob weight

Passenger side: wheel stud to bob weight

Driver side: axle end to bob weight

Passenger side: axle end to bob weight


Would this seem that the rear end is close enough left to right.


Heres a link to the album if you don't have the bandwidth to wait for all the pics to load.
http://s982.photobucket.com/albums/a...0Rear%20GBody/
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  #58 (permalink)  
Old 06-01-2011, 04:07 AM
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Left to right is dead on.
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  #59 (permalink)  
Old 06-01-2011, 06:11 PM
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I was not 100% sure onwhat to do to measure where the rearend sits front to back in the car so I spoke with my machinist today and he suggested that I measure from the lower ball joint to the axle tube. He said make sure I add in the radius of the tube and do it that way. He also suggested to measure the lower ball joint to the shock mount to make sure that the angle of the bracket and shock are also correct. I will also measure across in an x shape to make sure all four corners of the car are square. These measurements will all be done with the old rearend in the car with the weight of the car sitting on it. Does this sound like a good way to measures the rearend front to back? Thanks again for everyone's input so far. Hopefully there will be videos of burnouts and track passes soon
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Old 06-05-2011, 06:59 PM
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bump anyone? all input is appreciated
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