Re[2]: how to i.d.a GT6+ gearbox

[Peter Mchugh <Peter.Mchugh@faa.dot.gov>]

     I think that the gearboxes carried numbers beginning with KC-1 with 
     the Mark 1 and continued through at least KD in the Mark 2 (using both 
     KC and KD).  Mark 3s had KF10001 and beyond.
     
     Diffs began with KC1 (Mark 1),  KC50001 (Mark 2)  and KC66001 for Mark 
     3.  Diffs were numbered differently for use with overdrive units...
     
     I'll have to look at my overdrive units to see if there is a number...
     
     PMcQ
     
     76 Spit
     73 TR-6
     72 GT-6
     69 GT-6+ (2) 


______________________________ Reply Separator _________________________________
Subject: Re: how to i.d.a GT6+ gearbox
Author:  amace@unix2.nysed.gov at Internet
Date:    5/27/97 10:32 AM


On Tue, 27 May 1997, Dave Fain wrote:
     
> >Should be KC or KD (either) on a GT6+. 
>
> Where did you get your information?  My factory shop
> manual sez the gearbox numbers start at KC1 on the MkI 
> and at KC50001 on the Plus.  It's possible that they
> changed to KD on the Plus after my manual was published.
     
I'm pretty sure that only the diff's carried KC and KD numbers, not the 
gearboxes.
     
> >KE or KF (GT6 Mk3), or HC (Vitesse 2 Litre) will also be OK. 
>
> Thomasen's Guide to Originality shows KE for the Mk3.  Again, 
> maybe the KF came along later in the run?  I am not disputing
> your info, I just want to know for the record.  You know how us 
> engineer types are.
     
Here is another example of how the U.S. models are "slighted" in so many 
reference works. KF is the series used for the U.S. version of the GT6 
Mk.3 in Commission, Engine and Gearbox numbering.
     
> Just out of curiosity, did the overdrive boxes have any
> sort of unique numbers or were they simply scattered among
> the regular numbering series?  A. retentive minds want to know.
     
I don't have all my books in front of me, but I don't believe the OD 
gearboxes were numbered separately. Exception: GT6 Mk.3 gearboxes with 
overdrive supposedly had a different ratio of reverse gear than the non-OD 
boxes, but I don't know if that corresponds to the difference between KE 
and KF gearboxes.
     
--Andy
     
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