I have a question relating to a project I am building information for. I am building a mazda B2600i mini truck and am using the 13b rotary as my engine. I am hoping the rear end will bolt in pretty good without too much modification. My initial question is, where can I find a 93+ rear end at? I was hoping to find something online but I just can't seem to find anything, anywhere. Any help from you guys will be greatly appreciated. I plan on having everything else custom fabbed from the help of the drive shaft shop to accomodate the new rear end. From what I have been reading the rear ends are all pretty much the same for the miatas, rx-7's and the b series trucks. I won't have to worry about any front end issues because I will be running a drop end power plant upfront that is specific for that rear end.

 

I think I've answered my own question. I'll just go ahead and have the b series rear end rebuilt with a higher gear ratio. It should suffice for what I need.