Stock Rear

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krazykuda said:
Was 8 3/4" an option then???
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Yes it was, as early as late 65 you could order your car with an 8 3/4", not until the 340 cars came out in 68 was the 8 3/4" standard in any A body, and even then it was only standard in 340 cars!
 
cosgig said:
Yes it was, as early as late 65 you could order your car with an 8 3/4", not until the 340 cars came out in 68 was the 8 3/4" standard in any A body, and even then it was only standard in 340 cars!
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It wasn't standard on 383 cars also???
 
Never knew the abody had the 8-3/4 option for 65 and 66. How come the 273 4bbl did not come with them?
When did the Dana 60's come into play for the Big block a-bodies?
S/N: Cosgig, not debating- just curious. I honestly do not know either way. I've never seen an 8-3/4 under an early A-body factory. new one on me.
 
krazykuda said:
It wasn't standard on 383 cars also???
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Yes it was, Karl!! And to Joe, I have a 66 Valiant Signet convertible that cam factory with an 8 3/4"! In 65/66, the 7 1/4" was the only standard rear available, although there was a Suregrip option for the 7 1/4", and more often than not the 4 speed cars got a SG, although still not standard!! A body Danas did not come in A bodies until 68, and only in 4 speed Hemi Darts and Barracudas! It was not offered in any other car with any other motor as far as I'm aware of!
 
Syleng1 said:
Never knew the abody had the 8-3/4 option for 65 and 66. How come the 273 4bbl did not come with them?
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Because the 273 4bbl was only rated at 235 hp and didn't need one... So they were standard 7 1/4" but optional 8 3/4"...

Once you get in the upper hp, you then need to upgrade the 7 1/4" to 8 3/4"... I build a 318 for one of my 68 Barracuda fastbacks with only a 340 cam, 9.2 compression, 4 bbl, dual exhaust with stock exhaust manifolds and broke three 7 1/4" axles within 4 years on a daily driver - not beat... I replaced it with 8 3/4 and drove that car to 500,000 miles with no more axle problems.... The 7 1/4" axle can't handle a 318 with 340 parts it's so weak, but it's ok for a stock slant 6 or 273...

I have a 67 Barracuda fastback 273 4 bbl Formula S that came well loaded with options, being factory trailer tow with 8 3/4" 3.23 sure grip which was part of the trailer tow package...

My dad had a 67 Barracuda Fastback 383 4 speed back in the day, I was too young to know anything about them back then, but I would think, that it was a factory 8 3/4" sure grip axle... He got run off the road with only 6500 miles and the car was totaled back then...
 
I scrapped out a 66 B-Cuda Formula S a couple years ago, and it had an 8 3/4 323 sure grip in it from the factory. That's why I bought it, was for the rear end, for my 66 Dart project.
barracudadave67
 
I found a guy who has a 8 1/4 suregrip complete and he's wants 450.00 for it...good price ?
 
Not bad!!! What's the ratio?? I sold a really nice complete 8 1/4" with a 3:55 SG for $500 at the Nats!! He's right in the price range!!!
 
Cool info.

I have a formula S I bought just for a rebuild but was too far gone so it just sits. Formula s 1966 auto on column with 7-1/4 with sure grip 3.23
 
cosgig said:
Not bad!!! What's the ratio?? I sold a really nice complete 8 1/4" with a 3:55 SG for $500 at the Nats!! He's right in the price range!!!
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Im not sure of the ratio...hopefully I can get up there next week to look at it...he is in Harrisburg so its a 2 hour run for me...
 
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