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Info on how to identify transmissions?

Jorgen

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Does anyone know of any decent website or anything to help identify a few transmissions I have sitting around. They are both Triumph transmissions non-overdrive. From reading around there are 3 rail and 2 rail transmissions? Also fully synchronized and non-synchro transmissions? I can't seem to find a decent place showing me visual differences or detailing the differences by casting or stamped numbers. If someone has a spot to find this info I would greatly appreciate it.
 
Hi Jorgen,

afraid I do not know of any pictorial site to help identification of transmissions but, this site https://club.triumph.org.uk/prefix1.htm can be used to work out which one you have.
For the small chassis cars atleast, single rail gearboxes have a flat-ish top cover and the three rail box has the top cover extension coming from the top of the box and supports the gear stick.

Steve
 
Thanks for the link sir. That identified them for me.
 
Have a Mk1 and Mk4 trans
 
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