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I recently tried to purchase an a-body 8 3/4 for my valiant. Before I could even make an offer it was sold for $750 plus a whole bunch of traded parts. o[ This was a well used non-posi unit. Its a F-ing rearend for god sakes not a virgin 68 hemi block. Anyways I am looking alternatives as I am not willing to fund someones entire college for a used rearend. Can the 8 1/4 really live a long life behing a 400hp small block. What about a custom D60 or a cut down b-body 8 3/4 anyone have a total build cost of these?

Thanks
 

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Yep....people selling those stock 8 3/4's are smokin' crack usually. I could see if someone needed a bone stock A body rear end for some insane reason...then demand dictates the suppliers asking price. I suppose some people think their stock A body 8 3/4's are made out of " Inobtanium " But a cut down B body deal would work fine and if narrowed correctly, would no doubt be straighter than a stock housing.
Plus you would have a set of large drum brakes all set for the 4 1/2 bolt circle on the axles you would have to order.
The axles are around 250 - 300 bucks, and you could set them up with whatever style bearings you want.depending on the cost of the B body axle set up you could end up cheaper than the stock used A body 8 3/4 and have all new parts except for the center section.
I never have liked 8 1/4's....the damn fill plug always leaks ;D
 

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I have had 8 1/4 in two dusters - one in a 400hp small block and one in a 400hp big block - both have lasted a long time and not given me any trouble. Even the $200 posi's i got have lasted great and always spin two tires. I just used them because thats what I had and I didnt want to spend the money at the time for an 8 3/4
 

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i bought my housing off ebay for $250. the guy builds them all the time (great feedback). mine was cut down to the desired length. very nice guy to deal with. he calls you to make sure what you really want. im filling my 8 3/4 with all new parts. i have moser axles (which i had the guy who bulit my housing order) and will later get an alunimum 742 case from dts, detroit locker true track diff, moser ring and pinion, and disc brake set up (havent decide what brand of brake). im taking my time with my car so i can get what i want the first time round. id kinda like some sorta 4 link system, but to be honest i really could just go with leafs. art marrison has something called a 4bar that someone installed on their 70 challenger 8 3/4. im just exploring my options.
 
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