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Rearend question

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Old Jul 6, 2006 | 12:04 AM
  #1  
FoRdBoY357's Avatar
FoRdBoY357
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Joined: Aug 2005
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From: Tryon, NC
Default Rearend question

what is it?


haha, just kidding. i have an 8" in my cougar and im wondering if itll stand up to the 5.0 im putting in. ive got a good friend of mine say they are ****

any comments?
Old Jul 6, 2006 | 12:10 AM
  #2  
mustanglover66's Avatar
mustanglover66
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Joined: Mar 2006
Posts: 1,261
From: Concord, NC
Default RE: Rearend question

For normal driving they are fine but if you like to light up the tires it will blow quickly. there is not enough meat around the pinion bearing. I personally think they are junk. I've already blown one and have since quit taking my car to the track at least until I get my 9"
Old Jul 6, 2006 | 12:22 AM
  #3  
FoRdBoY357's Avatar
FoRdBoY357
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From: Tryon, NC
Default RE: Rearend question

allright, it is going to be my main means of transportation and id be going to the track every once in a while

ive heard you can mounnt 8.8" rearend disc brakes on it though so i want to hang onto it, but i can get a 67 cougar 9" pretty easy too

stuck between a rock and a hard place
Old Jul 6, 2006 | 03:37 AM
  #4  
67t5ponycoupe's Avatar
67t5ponycoupe
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Joined: Jan 2006
Posts: 3,946
From: Colorado
Default RE: Rearend question

They are bullet proof. Don't worry
Old Jul 6, 2006 | 03:41 AM
  #5  
baddog671's Avatar
baddog671
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Joined: May 2005
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From: MD/WV
Default RE: Rearend question

I have a 9" in my 67 and its pretty tough...
Old Jul 6, 2006 | 04:23 AM
  #6  
valley firearms's Avatar
valley firearms
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Joined: Sep 2005
Posts: 2,505
From: Wasilla, Alaska
Default RE: Rearend question

9" is better but an 8" will hold up to a 5.0 any day. If it goes out replace it then.
Old Jul 6, 2006 | 04:27 AM
  #7  
Colorado_Mustang's Avatar
Colorado_Mustang
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Posts: 4,089
From:
Default RE: Rearend question

I have an 8" in my '71. It runs low 13 second quarter miles at 5200 feet. I don't really launch at high rpm's (around 2k) as I use street tires and not any form of drag tire. I have had no issues with my 8". If you want to improve it's strength, check out Currie Enterprises. They make just about everything you'd need.

Also, a 9" or 8.8" will require more of your engine's horsepower to turn as well.

Old Jul 6, 2006 | 06:09 AM
  #8  
66 Hardtop 5.0's Avatar
66 Hardtop 5.0
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Joined: Aug 2005
Posts: 153
From: Oslo, Norway
Default RE: Rearend question

+1 for Currie parts

Keep your 8"
Old Jul 6, 2006 | 07:53 PM
  #9  
FoRdBoY357's Avatar
FoRdBoY357
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Joined: Aug 2005
Posts: 426
From: Tryon, NC
Default RE: Rearend question

ok, new question

how can i find out what size axles i have (splines)? cause i want a detroit locker or (if i can find one) a traction-lok
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