5 speed transmission mount for the 521
Posted: Fri Jan 24, 2014 8:57 pm
Ok, so I am going to make a few 521 5 speed transmission mounts, I am going to try to do this in such a way that I can do it over and over, maybe I can make $5.00 an hour making them.
I am starting with the frame section from a 520/521, it was a trailer, but I cut all that stuff off, once I could get to the mount holes, I ran a tap through them to clean up the threads.


Here is what the stock 4 speed mount looks like mounted, notice how high it sticks up above the cross member.



This is what is needed for the 5 speed mount, see how much lower it is where it mounts to the tranny, I also am making these to use the 720 transmission mount.



Here is what I am starting with, this is real backyard stuff, but it should help me make these consistently the same.



I have the pre-made mount in position with the piece of metal I made bolted to it to hold it in position.

Here it is welded in position with a 720 tranny mount bolted up to it.


It's ready now for me to cut pieces of metal to bolt on to the frame and mount so I can tack them in position, then remove and weld them.

I am starting with the frame section from a 520/521, it was a trailer, but I cut all that stuff off, once I could get to the mount holes, I ran a tap through them to clean up the threads.
Here is what the stock 4 speed mount looks like mounted, notice how high it sticks up above the cross member.
This is what is needed for the 5 speed mount, see how much lower it is where it mounts to the tranny, I also am making these to use the 720 transmission mount.
Here is what I am starting with, this is real backyard stuff, but it should help me make these consistently the same.
I have the pre-made mount in position with the piece of metal I made bolted to it to hold it in position.
Here it is welded in position with a 720 tranny mount bolted up to it.
It's ready now for me to cut pieces of metal to bolt on to the frame and mount so I can tack them in position, then remove and weld them.