First, I would at least inspect it before starting to rebuild it. Make sure it is necessary. There is a finite risk of damaging, losing, or otherwise ruining part or all of the gearbox during a rebuild.
You would probably need new synchros, a rear oil seal, and at least the input shaft ball bearing. Needles for the countershaft bearings are also a good thing to get. You should definitely get TWO of the special snap rings that hold the stuff on the mainshaft. NEVER re-use this snap ring! And gaskets, of course. But I think it is better to inspect and disassemble before ordering parts, otherwise you will either have wasted money buying unnecessary stuff, or have to make a second order for more stuff. Also, you may be able to mix and match parts from your old and new gearbox. BTW, I find it very unlikely that adding GL-5 oil will suddenly cause both synchros to fail. But if that is all that is wrong with the old gearbox, why not simply rebuild it instead of getting and rebuilding a different one? At least take it apart for a post-mortem and for practice... Doug Braun '72 Spit At 04:05 PM 2/12/2004 -0800, you wrote: >Hi Everyone, > >Well, first things first...I think I found out why >both 2nd and 3rd gear synchros went at the same time >on my gearbox. When I replaced my clutch, I refilled >my gearbox with GL5-rated oil...and as I've found out, >that will deteriorate the brass and bronze in these >old Triumph gearboxes fairly quickly. >I've purchased a good used 3-rail 4-synchro gearbox >from a '71 Spitfire MkIV. As a matter of course, I've >decided to rebuild it before I drop it in my '70 Mk3. >I haven't received it yet, so I don't know if it needs >anything beyond ordinary service items for the >rebuild. Is there a standard list of items one would >buy before embarking on a rebuild? > >Thanks! > >Adam *** http://www.team.net/the-local *** Your messages not reaching the list? Check out http://www.team.net/posting.html *** unsubscribe/change address requests to [EMAIL PROTECTED] or try *** http://www.team.net/cgi-bin/majorcool *** http://www.team.net/mailman/listinfo *** Archives at http://www.team.net/archive *** Edit your replies!
