1973 Midget build by ianjoub

4 minute(s) of a 203 minute read

Ok, as stated, I decided to 4 link the rear suspension. I finally received the components to build it. This is a Johnny Joint. I have one for the end of each of the triangulated bars. Next to it is the threaded insert so the length is adjustable:



This is the steel tubing I will use for the arms. It is 1 3/4" by .120 wall tubing:

I have poly bushed ends for the other 6 ends. 1/2 of them are right hand threads, 1/2 are left hand threads so length will be adjustable by loosening the jam nuts and twisting the arm, just like a tie rod end:



The threaded insert is a perfect fit for the tubing. I simply cut the tubing to length, then weld in the threaded insert:

11-19-2012

Ok, time to build the 4 link rear suspension. First I removed the leaf springs, then position the rear end for some measurements:



Looks good here:

I cut off the leaf spring brackets and ground everything flush:



I cut some patterns for brackets for the 4 link:



and modified the front leaf spring brackets to accept the wider poly bushings I am using:

I cut the front bracket hole to fit the new brackets I made:



and more



and more...

Then fit the new brackets:



Next, I welded the threaded inserts into the 'bars' of my 4 link, making sure to use a left hand thread on one end, and a right hand thread on the other. This will allow length adjustment:



I then applied never sieze to the threaded ends:

Time to assemble the lower links/bars:



And the second:

Check for rough fitment:



and installed on the frame end. Next up, the axle end for the lowers and construct the uppers.... but that is for another day.