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I am a fan of the Losi LRM transmission and the upgrades available for it..so this is a cool one. This MIP L-260 kit includes a different top gear and diff gear to change the original LRM ratio from 2.18 to 2.6

Interesting find! Never seen that particular hop up before.

This kit gives you the XX/Retrofit trans options, where the buggies had a 2.19 ratio and the trucks had a 2.61 ratio..but still using the LRM gearbox.



http://www.vintagelosi.com/Instructions_files/RetrofitXX.pdf

Nice! I put one in my LXT back when I still raced it. And I think I have a backup kit I got years later.