The bolt located on the top of the tranny has broke. This particular bolt serves as a guide for a particular internal tranny piece thats called something that i cant recall the name of...lol. But its broke!
My fix is to take a metric grade 12 socket head bolt of the same size , chuck up in a lathe and turn the end to the proper size while focusing on a nice radius transition to the rest of the bolt.
The t45 components came with alot of squared corners that allow to be easily ripped under pressure. Grinding/polishing/chmafering the edges and corners....better known as "radius reliefing" greatly improves their strength.
So, youll need to drop the tranny for this fix and while youre in there, perform some simple tricks that will strengthen it.
Take a look at the 3rd/4th gear shift fork to see if it has ripped as well. Im surprised this fork didnt fail first! Nearly 100% t45 that are abused break first with this fork.
This tranny is an easy fix and nothing you cant handle. Purchase an Eaton lock ring plier and youll be ready to go along with common hand tools. Youtube is a good help too.
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