Gearbox service cost/difficulty | FerrariChat

Gearbox service cost/difficulty

Discussion in '308/328' started by wannabe308, Aug 20, 2010.

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  1. wannabe308

    wannabe308 Rookie

    Jul 3, 2010
    11
    Driving a 308 GTSi, perfect in every respect except that you have to double clutch into third gear or it will crunch appallingly. It's gotta be a completely non-functional synchro.

    So two questions. First, what should I expect to pay a competent shop to pull the transmission and replace a single shot synchro? Of course this is a "while we're in there" situation; I understand that when there's more than one shot synchro to deal with, it's going to be more.

    And second, is this a realistic DIY job for a new owner who has successfully rebuilt a half-dozen more mundane Fiat transaxles?
     
  2. wannabe308

    wannabe308 Rookie

    Jul 3, 2010
    11
    #2 wannabe308, Aug 21, 2010
    Last edited: Aug 21, 2010
    Holding harmless anyone who responds? I promise, I won't blame you if your answer turns out badly for me.

    I should add... I was TEST-driving that GTSi. I'm trying to get a feel for whether this is a problem that I can afford to buy.
     
  3. shashi27

    shashi27 Formula Junior

    Jan 7, 2006
    988
    Long Valley, NJ
    Full Name:
    Shashi
    $6,500 would be a guess.
     
  4. thecarreaper

    thecarreaper F1 World Champ
    Silver Subscribed

    Sep 30, 2003
    18,128
    Savannah
    the linkage can be out of adjustment, there is also some adjustment in the clutch travel. usually 2nd gear is the one thats an issue, 3rd sounds like an adjustment issue as opposed to a rebuild needed. a good shop should be able to put the car on a rack and check the shift shaft travel measurements and tell you. this should be done on a PPI anyway, before you buy the car, as it may have other issues.

    good luck to you, and welcome to FChat.
     
  5. FF8929

    FF8929 Formula Junior

    Apr 12, 2008
    799
    Livonia, Michigan
    Full Name:
    Fred Flynn
    I'd say you were competent enough to do it. You will have to buy/borrow some special tools, and F-car parts ain't cheap, . There are many people here who can help you through it.
     
  6. Brian Harper

    Brian Harper F1 Rookie
    Owner Silver Subscribed

    Feb 17, 2006
    4,078
    San Jose area
    Full Name:
    Brian Harper
    Price synchros - I think they are about $500 each.
     
  7. fastradio

    fastradio F1 Rookie
    BANNED Professional Ferrari Technician

    Apr 26, 2006
    3,664
    New England
    Full Name:
    David Feinberg
    And then price in some of the gearbox bearings...and possibly 3rd gear, By the time you're done, parts (alone) will be between $3,000-$4,000. Labor to pull the engine, separate the gearbox from the engine and then tearing down the gearbox is considerable.

    Personally, with all the labor involved, I'd just do it right, versus just replacing a single synchro...as likely, there's more damage/wear than you think.
     
  8. DavidDriver

    DavidDriver F1 Rookie

    May 9, 2006
    4,424
    Grass Valley, CA
    Full Name:
    David Driver
    #8 DavidDriver, Aug 22, 2010
    Last edited: Aug 22, 2010
    Uh..... :rolleyes: speaking from experience.... :cool:

    If you're in SoCal... send a pm to FerrariFxr. He did mine very reasonably. I pulled the engine and then separated the gearbox. I did it for my GT4.

    Word of caution: It's not easy.

    Check out this thread for more information: http://www.ferrarichat.com/forum/showthread.php?t=112150

    Special tools?: Yes, you'll need the two special sockets for the ring nuts.

    Synchro's were $341 (IIRC) each.
     
  9. DavidDriver

    DavidDriver F1 Rookie

    May 9, 2006
    4,424
    Grass Valley, CA
    Full Name:
    David Driver
    #9 DavidDriver, Aug 22, 2010
    Last edited: Aug 22, 2010

    That's excactly what I found out. I thought it was a synchro and it turned out to be worn gears. People love to rev their cars up to listen to them, even when they "think" that sitting still doesn't hurt. Wrong!

    In the Fearrari gearbox, EVERYTHING moves. Even in neutral! So when you rev that puppy up to hear the sweet sound of the exhaust, when the gearbox is still cold, you're putting severe wear on the gears.

    After spending almost $5K for a rebuild (after I pulled the motor and separated it from the gearbox), I ended up re-selling my synchro's to Pizzaman Chris.

    Rule #1: Don't buy parts until you know what you need.

    :rolleyes: ...thinking.

    Oh wait! :eek: That's probably Rule #3.

    Rule #1: Don't try this (at least for the 1st time) by yourself. Try to find someone, preferably with experienc to assist you.

    Rule #2: When you have a plan, and change it. Make certain that you review ALL of the steps you need to accomplish before you begin with the new plan.

    For more information see here: http://www.ferrarichat.com/forum/showthread.php?t=113587
     
  10. CliffBeer

    CliffBeer Formula 3

    Apr 3, 2005
    2,198
    Seattle, Washington
    Full Name:
    Cliff
    I've seen good used replacement 308 transaxles for between $2,500 and $4,000 on ebay and elsewhere. If it's $6,000+ to rebuild yours it might be cheaper and easier to get a good used transaxle and DIY the removal/installation. As a matter of fact, I have a good used transaxle myself that I would let go for $2,500.

    Good luck!
     
  11. ramosel

    ramosel Formula 3

    Sep 11, 2004
    1,237
    Meadow Vista, CA
    Full Name:
    R Moseley
    #11 ramosel, Aug 22, 2010
    Last edited: Aug 22, 2010
    Thats a lot of work to just replace one synchro... I'd rebuild the thing if you are that far in. Or at least negotiate the cost of going that far out of the price of the car then kick in the extra to finish the rebuild.

    They are probably more similar to the FIAT gearboxes you've been into than you might think. If you are comfortable rebuilding FIAT gearboxes, you can work on this one.

    I had my motor and trans out and separated. A buddy's brother (also TR owner) drives from SoCal to Washington State on a regular basis so I had him haul my trans to LA (BMW, not TR) to Franchorchamps. So I didn't pay any R&R, it was all my labor pulling the motor/trans. I didn't pay any shipping. Rod went through my gearbox, replaced all the synchros, 1 gear, bearings. He sent it back with the new ring nuts for the rest of the reassembly, o-rings and new drain plugs - $2300

    Rick
     
  12. Pizzaman Chris

    Pizzaman Chris F1 Rookie

    Mar 13, 2005
    3,919
    New Hampshire
    Full Name:
    Pizzaman Chris
    That's not to bad Rick.

    It depends i guess how lucky you are. Meaning if you get a used one. But then again you should take that used one apart also to make sure it's up to standards.

    I also went thru this process too.

    And like many here, David Driver, Rick Ramosel, myself, sometimes the unexpected comes around and things get.........lets say put on the back burner for awhile.
     
  13. 208 GT4

    208 GT4 Formula 3

    Dec 27, 2003
    1,769
    Brighton (UK)
    Full Name:
    Dan
    I had the gearbox rebuilt on my 208 GT4. It worked out at about 30 hours labour by a good Ferrari specialist. If you're spending all that money/time to take it to bits, it makes sense to replace anything that is worn out of spec. The synchromesh rings do wear, and $500 each is about right. Although there are 5 of them, the lower gears get the most wear so it's unlikely you'll need to replace all of them.
     
  14. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,673
    San Carlos, CA
    Full Name:
    Mitchell Le
    Typically, you don't repair a transmission. You just rebuild the whole thing. Otherwise, it is inviting bad karma. Bearings are quite expensive now. What you can do is to buy a core transmission, strip both boxes down, pick the best set and put it back together. When you are done, you will have a box of left over gears and parts that you can then sell to recoup some of your costs.

    Doing a gear box by yourself is not really for the faint of heart. There are a few of the special tools that you can make, or borrow to get the job done.
     

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