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diff or trans going bad?

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  • #1

    diff or trans going bad?

    93 A4 Trans Am w/limited slip 3.23
    I just fixed the engine, had a little fun racing, burning rubber and making circles and now I got a big klunk- klunk- klunk under the car ( under the console or a little to the right) when I accelerate hard. Its like metal on metal 3 times. The transmission shifts ok. No klunk when I accelerate mildly

    What happens when the transmission mount is broken? or when the differential goes bad?
    93 t/a A4 3.23s
    95 Formula A4 2.73s >>>>93 t/a 3.23 , !AIR, !cat, !A/C, hotchkis lowering springs, kyb adj shocks, DD
    99 Camaro z28 a4, 2.73, !AIR, !A/C
    99 Alfa Romeo 166 3.0 v6, red
    97 3.8 v6 A4 camaro, hardtop
    93 Camaro Z28 M6, hotcam kit, 150 shot, twin plate clutch, eibach pro kit and bilstein shocks, swaybars etc
    00 audi a6 4.2 40 valve v8
    Tags: None
  • #2
    Sounds like the tranny mount. Jack it up and check. It's pretty easy to change.

    Good Luck.

    Gary94Formula
    2005 GTO (mine) K&N CAI and Magnaflow exhaust, drilled and slotted rotors, and other minor mods.
    1994 Formula (mine) SOLD 6-23-08 Still miss it
    2002 V6 Firebird (wifes)
    2013 GMC Sierra (mine)
    2011 Cadillac CTS4 (wifes)

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    • #3
      Yeah, if its stills shifting fine, its probably the trans mount. Does it make kind of a THUD and sudden jerk?


      96 TA Sold!
      87 TA Sold!
      80 Z28 Sold!
      74 Formula Sold!
      73 Z28 Sold!
      69 Camaro Not Sold!

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      • #4
        Originally posted by Mirroredshades
        Yeah, if its stills shifting fine, its probably the trans mount. Does it make kind of a THUD and sudden jerk?
        He he he. I think my car lifted off the ground when mine broke. It sounds like someone is under the car with a sledge hammer.

        Here is some info on tranny mounts. Note the part number for the 1LE mount. http://shbox.com/1/trans_mount.jpg Don't get a regular one from a local parts store. You'll be putting another one in in 6 months. The poly mount is loud. I couldn't stand mine after 2 weeks and replaced it with one out of a Caprice Classic police car. It's a totally different design but about the same height. I should take a picture of it sometime.
        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"

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        • #5
          Yup.... listen to the guys, it's a broken trans mount. Definately go with the 1LE rubber unit.

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          • #6
            thanks guys,

            it definately sounds like someone is under the car with a sledgehammer , and it felt like going over a rock or something it was like the car was jumping ( 3 times ). A big thump and then two little ones.
            can I fix it? I cant get parts around here..
            can I still drive the car safely if I dont accelerate hard?( thats a real challenge)
            93 t/a A4 3.23s
            95 Formula A4 2.73s >>>>93 t/a 3.23 , !AIR, !cat, !A/C, hotchkis lowering springs, kyb adj shocks, DD
            99 Camaro z28 a4, 2.73, !AIR, !A/C
            99 Alfa Romeo 166 3.0 v6, red
            97 3.8 v6 A4 camaro, hardtop
            93 Camaro Z28 M6, hotcam kit, 150 shot, twin plate clutch, eibach pro kit and bilstein shocks, swaybars etc
            00 audi a6 4.2 40 valve v8

            Comment

            • #7
              I drove mine for a few weeks before changing it. just be real careful! The install is easy... a few bolts, maybe 10 minutes of work.

              Comment

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