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B-body rear end question

Posted By: jake4cars

B-body rear end question - 03/17/12 06:02 PM

1969 B-body with slant 6 and manual trans, were they all 8 3/4 rears?

Thanks,
Joey
Posted By: 340SHORTY

Re: B-body rear end question - 03/17/12 07:05 PM

Posted By: Kern Dog

Re: B-body rear end question - 03/17/12 08:01 PM

It COULD have been an 8 1/4"! They were phased in late '69. My '70 318 Charger had am 8 1/4" axle. They are also listed in the '69 Plymouth factory service manual.
If it is an 8 3/4" and is original, it may have the small 1 3/8" pinion '741 case. TRY to get gears or a SG for THAT oddball!
Posted By: jake4cars

Re: B-body rear end question - 03/17/12 08:45 PM

Yeah, I am just curious as I am buying a B-body out of a junkyard and it is sitting in the ground too much to differentiate until I get it up on the trailer.

Joey
Posted By: zrxkawboy

Re: B-body rear end question - 03/17/12 09:33 PM

Not sure about '69, but my '67 Belvedere, slant-6/3-spd has a 7-1/4.
Posted By: sthemi

Re: B-body rear end question - 03/18/12 07:46 AM

Slant six cars would have a 7 1/4.. Stay away..

Unless someone broke the old rear and swapped in an 8 3/4.
Posted By: 65rbdodge

Re: B-body rear end question - 03/18/12 01:38 PM

my friend has a 68 coronet w/ /6-3sp. it had a 7 1/4" rear in it.
Posted By: Cab_Burge

Re: B-body rear end question - 03/18/12 11:38 PM

I think 1970 was the first year of the 8 1/4 maybe not I knew a guy that had a 1970 Charger Vitamin C car with a slant six automatic trans and a rear end that had the rear inspection cover,it was not a Dana 60
Posted By: John_Kunkel

Re: B-body rear end question - 03/19/12 09:28 PM

'69 was the first year for the 8 1/4" but they were mostly used behind small V8's (318, 383-2). The 7 1/4" is more likely to be found in a /6 car.
Posted By: B_Body_Bob

Re: B-body rear end question - 03/19/12 10:02 PM

What's left of the one in my side yard has a 7-1/4" under it.
Posted By: B_Body_Bob

Re: B-body rear end question - 03/19/12 10:05 PM

Quote:

If it is an 8 3/4" and is original, it may have the small 1 3/8" pinion '741 case. TRY to get gears or a SG for THAT oddball!




Sure grip is interchangable for all 8-3/4s. Bearings for the SG are different between cone and clutch type but it's the ID that's different, they're the same as far as the case goes. I took one from a 741 and put it in a different case. Still have the case and gears from the 741, should probably scrap it.
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