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  1. 72goldduster

    strange discovery.

    no, actually the factory rear ends are too narrow because the the duster was valiant based. under a valiant, they are the perfect width, but since the duster didn't get it's own width, it's too narrow. the page allpar has for the duster mentions this. and I want to correct myself for saying it's...
  2. 72goldduster

    strange discovery.

    i was just milling around and decided to measure all the 8 3/4" housings we have, and found out that the perches for a truck are the same width as an A-body. from pin to pin on the perches, they're roughly 43 inches. now from flange to flange, it's two inches (1.85"), which makes up for the rear...
  3. 72goldduster

    How Many Horses does your Posi eat?

    hotrod magazine did an article about rear end strength a while back, and they said the 8 3/4" is stronger than the ford 9". they also said in another article that chevy ran clutches and internals that would keep enough power from the wheels so you didn't break your rear end, also springs that...
  4. 72goldduster

    7 1/4 questions

    alright, so it's pretty much what I thought in the first place, which was be gentle and It'll last. we have a few of these lying around, and a pair under some four door donor cars, so for the sake of curiosity, I'll be sure to have changed a rear end a few times :) anybody have any stories...
  5. 72goldduster

    7 1/4 questions

    I'm getting ready to drop a 360 into my duster... won't be able to get an 8 3/4 for a while. it's a '77 360, its completely stock other than a 650 Edelbrock on top, and I was just wondering how soon it will be before I have to drop out one seven and a quarter for another. it's just going to get...
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