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Post by real57vetteguy on Jan 6, 2014 19:44:15 GMT -5
I have been trying to respond to this thread for a while. My phone responses will not load. I have done some extensive research regarding the rear end widths. My Uncle has a 1966 442, his rear end is indeed WIDER than my factory 1965 rear end. I hear a lot of comments about they all fit, in which case they do, but in my case running a wide wheel that just barely fits under the 65 with a 65 rear end, I could not change to a 66 rear end without changing wheels. I am considering picking up a Chevy 12 bolt and cutting it down to a specific width to accommodate my wheels and Disc brakes. I know some of you know Brian Trick, He seems to be the most knowledgeable person I have spoken to regarding these rear ends, housings, and widths. Below is directly out of an e-mail he sent me a few month back, I have found everything said below to be 100% true!
Brian Trick Stated
"The 64-67 Chevelle 12-bolt rears are the same as the 67-69 camaro rears,as far as width goes.These rears are 5/8" narrower on each side,compared to the 68-72 12-bolts. The original 10-bolt that came in a 65 is the same width as the 64-67 12-bolt Chevy. Oldsmobile only had the narrower rears in 64-65,then went to the wider rear in 66."
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Post by stan65cutlass on Jan 6, 2014 21:49:29 GMT -5
if i was gonna go so far as cut one down it would be a ford 9 inch, never break another,
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Post by real57vetteguy on Jan 7, 2014 8:47:20 GMT -5
if i was gonna go so far as cut one down it would be a ford 9 inch, never break another, A ford 9 inch takes more power to run than any other rear end. If I ever see the day that I break a 12 bolt Chevy with a good posi unit and aftermarket axles on street tires I'm gonna give up... LOL, As a matter of fact Brian and I agreed that my current 10 bolt would hold up to what I do especially with a good aftermarket carrier and axles, but by the time I buy all that and cut a somewhat rare rear end I would be better off just selling mine and starting with a Chevy 12 bolt, strength wise and money wise.
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Post by Deleted on Jan 7, 2014 11:29:47 GMT -5
Amen, real57vetteguy, on the 9 inch Ford rears. Everybody around here locally building street rods to drive 40-50 mph back and forth to car shows think they have to have a 9-inch Ford under their rod. Cripes, you don't even need a posi for that...and if they put wide tires on the car, most of those tires really don't give enough traction to cause any trouble. I have yet to tear up a Chevy 12-bolt; we drag raced for years and nevr had any trouble with one, even running 9-inch slicks.
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Post by real57vetteguy on Jan 7, 2014 12:12:47 GMT -5
Amen, real57vetteguy, on the 9 inch Ford rears. Everybody around here locally building street rods to drive 40-50 mph back and forth to car shows think they have to have a 9-inch Ford under their rod. Cripes, you don't even need a posi for that...and if they put wide tires on the car, most of those tires really don't give enough traction to cause any trouble. I have yet to tear up a Chevy 12-bolt; we drag raced for years and nevr had any trouble with one, even running 9-inch slicks. There is a lot to be said for GOOD parts. I know guys that bust a 12 bolt posi from 1968 (no telling how worn the bearings were and how much use that carrier has seen) and swear they need to go get a 9 inch rear, all the while if they had installed a good carrier, good axles, durable spline count and good bearings they couldn't break their 12 bolt with slicks and a 100 shot of laughing gas.
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Post by stan65cutlass on Jan 7, 2014 14:59:30 GMT -5
great info guys, my gears are 323 non posi, extremely worn, may look into a 12 bolt now, buddy has one, or find a better set of gears and posi for mine.would prefer original width, i enjoy dumpin the clutch and bang shiftin, just hate doin things twice
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Post by real57vetteguy on Jan 7, 2014 15:20:49 GMT -5
great info guys, my gears are 323 non posi, extremely worn, may look into a 12 bolt now, buddy has one, or find a better set of gears and posi for mine.would prefer original width, i enjoy dumpin the clutch and bang shiftin, just hate doin things twice Stan, I am going to sell the original 3:23 Posi out of mine. We took it apart before the car was put back together and it was in GREAT shape. Slaughter442 can verify the condition of the rear end as he took a look at it with the cover removed and he has rode in it!
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Post by stan65cutlass on Jan 7, 2014 15:42:54 GMT -5
i may be interested in what yer peddlin' better fire up the new smoker,
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Post by mongoose on Jan 7, 2014 17:42:13 GMT -5
Got an Auburn unit in my 12-bolt Chevy. No problems whatsoever with it. Survived two bent axles.
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