Broken Driven Gear 79 308. I need a gear! | FerrariChat

Broken Driven Gear 79 308. I need a gear!

Discussion in 'Technical Q&A' started by dan the man, Sep 16, 2006.

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  1. dan the man

    dan the man Karting

    Nov 5, 2003
    146
    Alabama
    Full Name:
    Daniel
    I posted this in the 308 section, but thought it would get more hits here in the tech section.

    The 308's driven gear, part number 105544 of the "spare parts catalogue" for 1978 item number 9 of TAV.24 is broken. two teeth are broken off.

    this is the lower of the three gears which distribute power from the clutch output shaft to the transmission imput shaft.

    I have a 1979 308 gts. the middle and drive gear look fine, and there is no excessive wear patterns on any of the three.

    therefore, I need the driven gear in question. anyone have one they will part with? price?

    also, has anyone had any experiences with one of these three gears breaking?

    The first time I took the bell housing off to replace the clutch the lower castle nut had backed off and this gear was moving back and forth on the shaft. I do not know for how long that was going on, but there was some wear to the housings as a result. nothing serious though. I replaced the nut with a new one when the new clutch went in. when I tore it down tonight looking for the gear noise that developed today, the nut was still inplace and tight. I am not sure that the gear being loose initially may have contributed to the teeth breaking off, as this was discovered and fixed about three years ago, and I do drive the car a lot.

    The indication of a problem was when I drove the car to work today and just up the road from work the car started to make a clicking noise. If you have ever broken a gear in a tranny then you should know the noise. I trailered the car home, and took the access cover off to find the broken gear.

    again, I am in need of a gear. I would rather have a used one due to cost. Where? prices?

    Thank you,
    Dan
     
  2. Birdman

    Birdman F1 Veteran

    Jun 20, 2003
    6,689
    North shore, MA
    Full Name:
    THE Birdman
    Dan,
    I might have one. E-mail me a picture of both sides of the gear so I can be sure mine is the right one of the three. It's not in perfect condition, but not terrible.

    jbird AT oceanicresearch DOT org

    Birdman
     
  3. dan the man

    dan the man Karting

    Nov 5, 2003
    146
    Alabama
    Full Name:
    Daniel
    Birdman,

    I have sent you a PM. I will email you pictures Sunday the 17th,

    Thank you,
    Dan
     

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