So all I need is the F104 aluminum diff housing set #54158 and an F104 drive shaft right? Drops all right in?
Looks like I have f-ed up the stock diff somehow.
Stock F103 diff works too. Believe its the same. F104 axle may be a tad shorter. I have the f104 steel axle on my standard F109. Works the same.
On second thought isn't the placement of the thrust bearing different from the f103 to the f104?