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  1. jbc426

    Sure Grip unit feels much better than Eaton TruTrac did..

    I recently replaced the differential in my 8 3/4 with a blueprinted Sure Grip unit from Doctor Diff. I was getting a high speed 95+ vibration and the passenger side Green Stripe bearings were getting noisy after a few thousand miles. The driveline was smooth until I exceed 95 mph, and then a...
  2. jbc426

    Inadvertently exceeded driveshaft "Critical Speed" at Willow Springs.

    While exercising my '68 convertible Barracuda during the Spring Fling Track Day a few weeks ago, I experienced a deep, high-resonnant frequency vibration when the car was in excess of about 105 mph. The vibration became more intense as I increased my speed increased past 130 mph, and went away...
  3. jbc426

    5.2 & 5.9 tone ring holes vs torque converter clearance?

    Regarding the tone ring holes for 4.2 to 5.9 Magnums, how far away does any metal need to be from behind the hole for it to still to work? My new torque converter was built using a large round plate that the torque converter bolts to. When test fitting the torque converter, I noticed there's...
  4. jbc426

    One wire lock-up, 4 spd automatic w overdrive into A-body.

    Ok, this will work for big blocks, small blocks, Magnum 5.9's AND all modern hemi's, just order the right bellhousing. It uses no computer, fits with minimal massaging of the cross member and holds up to 1000 hp. I only opted for the 750 hp version. There's no time consuming WilCap adapters...
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