[TR] TR4 Slave Cylinder Stay Rod

[Brad Kahler]

My 1961 TR4 has the 1/4" flange and is full synchro.

Brad
CT288L


Sent from my iPhone

On Jun 17, 2009, at 7:19 PM, "Randall" <tr3driver at ca.rr.com> wrote:

>> If you measure the thickness of the bell housing flange
>> that
>> bolts to the engine, it is about 3/8 of an inch thick on the early
>> transmissions
>> but close to 1/2 inch or more on the later transmissions! Much  
>> stronger! I
>> don't
>> know when this change occurred, but my guess is it changed when the  
>> gear
>> box
>> went to a synchro 1st gear.
>
> I believe it changed more than once.  The TR2-3 version was only  
> perhaps
> 1/4".  I don't recall it getting thicker when the 4-synchro box was
> introduced with the TR4 (and some TR3B), but perhaps it did.  Then  
> it got
> thicker when the 6-cylinder TR5/250 was introduced; and again at  
> least once
> sometime during TR6 production.  I believe one of those changes was  
> when
> they tried to rationalize transmission parts between the TR6 and  
> Stag.  The
> castings were the same, but the Stag casting is machined differently  
> (to
> accommodate the roller thrust bearings on the countershaft).