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  • #1

    More problems

    When it rains it pours...

    I had the shop take a look at my rear end since it has been making noise along with the transmission and of course it's not good.
    The clutches in the posi unit are pretty much gone and there is significant wear on the ring and pinion.

    I have 2 choices so far. Rebuild the rear I have or replace it with a beefed up unit.

    I will have the specs on the replacement one tomorrow but I do know it will be .373 gears. That would be about $1300 with a 3 year/36K mi. P&L warranty.

    I am leaning towards rebuilding what I have. WS6Store.com seems to have some decent prices. I'm going to go with motive .373 gears but am wondering, about the posi. Eaton or Auburn? The eaton is about $50 more. Can anyone tell me the difference? Is one significantly better than the other?

    I don't intend to really abuse anything but I do want something that is going to last and be everyday driver friendly.

    Suggestions?
    Comments?
    My DD
    2015 Lexus GS350 FSport

    My toy
    Tags: None
  • #2
    How much power are you putting down now?

    2002 Firehawk Sold

    Comment

    • #3
      Bolt-ons only, so basically stock power.
      My DD
      2015 Lexus GS350 FSport

      My toy

      Comment

      • #4
        Why dont you look for a used Rear-end at a junk yard. I see complete 3 and 4 channel rearends for like $300-400.
        Eddie
        2000 M6 Trans Am
        Tune+exhaust=344WHP

        Comment

        • #5
          Well I got a 2nd opinion and a cheaper solution.

          I took the posi unit to a different shop (rear end specialist) and they did confirm it was in bad shape but told me there was nothing really wrong with the ring gear. As luck would have it, they had a slightly used stock auburn unit that was pulled from a previous job. Got it for $250 and it is being reinstalled as we speak.

          Here's hoping nothing else "comes up"...
          My DD
          2015 Lexus GS350 FSport

          My toy

          Comment

          • #6
            Originally posted by sneitzel
            Well I got a 2nd opinion and a cheaper solution.

            I took the posi unit to a different shop (rear end specialist) and they did confirm it was in bad shape but told me there was nothing really wrong with the ring gear. As luck would have it, they had a slightly used stock auburn unit that was pulled from a previous job. Got it for $250 and it is being reinstalled as we speak.

            Here's hoping nothing else "comes up"...
            Excellent!
            2002 Electron Blue Vette, 1SC, FE3/Z51, G92 3.15 gears, 308.9 RWHP 321.7 RWTQ (before any mods), SLP headers, Z06 exhaust, MSD Ignition Wires, AC Delco Iridium Spark Plugs, 160 t-stat, lots of ECM tuning

            1995 Z28, many mods, SOLD

            A proud member of the "F-Body Dirty Dozen"

            Comment

            • #7
              The most significant difference between the Auburn and the Eaton is that the auburn has non-replacable clutches and the Eaton has replacable clutches. So basically when that rear goes out again, you will have to replace the whole unit where as the Eaton can be rebuilt with new clutches.
              Eaton>Auburn .02, imho, yada...
              Greg W. in West Michigan
              1992 Formula WS6-A/R Rims, Stock L05 swap, Former Abuse Victim
              1983 Z28-Parts car- *Sold*
              1984 Z28-305 HO Auto *Sold*
              1986 Camaro-V-6 5Spd *Sold*
              1984 Camaro-V-6 Auto *Sold*
              <Motor out

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