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  1. Southwest Speed bellhousings; any experience?

    Transmission & Driveline
    I need a 621 bellhousing for my 69 SS restoration in which I am finally getting to the drivetrain stage. Pretty exciting! Does anyone have any experience with the Southwest Speed brand of bellhousings? They are pretty widely sold across the internet including some restoration parts stores...
  2. Building 8.5 inch 10-bolt...any words of wisdom?

    Transmission & Driveline
    Hi everyone, I building a 8.5 inch 10-bolt. I'm planning the following: 73 Nova Axle - $100 Rebuild Kit from Richmond Gear (their "mega kit") - $130 30-spline cone type posi from 1993 Buick Roadmaster in junk yard - $50 Keeping original 2.73 gears since I'm planning on 6L80E in future - $0...
  3. Driveshaft question

    Transmission & Driveline
    Is there a difference in the performance of an aluminum driveshaft compared to a steel one? I was told that I need a driveshaft and the guy said he could get me either one I wanted. He suggested the aluminum, but that could be because it costs more. What do you know about this? Is it worth an...
  4. vibration in drivetrain at roughly 2000 rpm

    Transmission & Driveline
    I have a 69, 350, new Muncie 4 speed, 10 bolt 8.2" posi with 3.55 gears. I have a vibration at approx. 2000 rpm, it comes in any gear, in comes when accelerating or decelerating and at what ever speed, but it is only in the 2000 rpm range, once below or above it goes away. its a pretty hard...