Qcb320v gearbox

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  • studley07
    S2Forum Addict
    • Feb 2014
    • 211
    • Country: United Kingdom

    #1

    Qcb320v gearbox

    Hi. Could do with some help please. Anyone in the Cheshire area put in contact with a good gearbox specialist. My B3 20V coupe has developed an issue where it wont stay in third gear. Goes in ok but as soon as you put your foot on the loud pedal pops out of gear and chatters around, hoping to be something easy but fearing the worst to be fair. Doesn't seem to be anyone out there with a good condition B320V coupe gear box for sale either. Anyone with help please. Thanks
  • quattroamm
    S2Forum Addict
    • Dec 2003
    • 306
    • Country: United Kingdom

    #2
    I've got a b3 90 quattro 20v sport gearbox which I was told was a good box with low miles
    1991 90 quattro 20v sport 450 bhp
    Rs2 engined ur quattro sold
    11 golf tdi

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    • steve briance
      S2Forum Extremist
      • Aug 2014
      • 1455
      • Country: United Kingdom

      #3
      Careful with gearbox codes here... The 90 has different final drive ratio to coupe.

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      • Kiku
        S2Forum Addict
        • Aug 2010
        • 497
        • Country: Estonia

        #4
        What "EU" 90 q has a different final drive? All 90q(i5) engine has 4.11 final drive. Only Coupe q what has a different final drive is 2.8 q.
        1990 2.2 20VT Audi Coupe Quattro
        *Hx35/k26, MaxxECU, Wagner EM/IC *RS2 Recaro *4pot-Brembo *3" turboback *Treser *Koni/H&R
        1990 Audi 200 20v Avant 2.2 20VT *7 Seater *Full electric gizmos

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        • psiconauta911
          S2Forum Maniac
          • Oct 2007
          • 613
          • Country: Portugal

          #5
          Gear Coupe Sedan
          1st 3.55:1 3.55:1
          2nd 2.11:1 2.11:1
          3rd 1.43:1 1.30:1
          4th 1.03:1 0.94:1
          5th 0.84:1 0.77:1
          Reverse 3.50:1 3.50:1
          Final drive 4.11:1 4.11:1
          taken from 20v.org, looks like 3rd, 4th and 5th are different!

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          • steve briance
            S2Forum Extremist
            • Aug 2014
            • 1455
            • Country: United Kingdom

            #6
            My bad. It was the other ratios that were different not the final drive (unless it was a b4 which this car isn't)

            My 20v. Coupe quattro has ASZ gearbox and AEC rear Diff. The 10v coupe quattro also has ASZ gearbox which is a better match than the 90 box. A 90 box will go on but you will need a different speedometer otherwise your speed will read incorrectly as the 90 has smaller diameter tyres than the coupe.
            ​​​​​

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            • studley07
              S2Forum Addict
              • Feb 2014
              • 211
              • Country: United Kingdom

              #7
              thanks for that. I appreciate your help

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