The housing in my Th400 is for gear range in the 30's I need a 43t gear which will require a housing that will have a slightly larger bore. TCI has them for $107+ship. I am wondering if it could be drilled out slightly larger to accommodate it? I'll put a post on Parts Wanted to see if one is available but figured I ask about this option.
thanks,
Steve

 

I have a bucket full of speedo housings, I’ll see if I have one.

Call some of the performance transmission places like Coan or Hughes. Most race cars don’t use a speedo, so they are blocked off with a freeze plug. When I worked at Coan years ago, they had 55 gallon barrels of speedo gears and housings.

 

thanks, that would be great.
Steve