I had to replace a snap ring on my rear axle end today. For those of you that don't know, the 1968-1970 rear ends on the GT are held in place by snap rings on the splined axle shaft.
What really freaks me out is the fact I found my missing snap ring in the sludge in the bottom of the diff and it was NOT broken OR stretched! This means that when a previous owner was driving this car at some point his right rear axle was no longer attached to his car!!!
HOW TO REPLACE SNAP RINGS:
I ordered new rings from OGTS and used a 90° snap ring plier to cram into the tiny amount of area for putting the ring on.
1. Unless you can find snap ring pliers that can expand more than mine do you will have to do it this way.
2. Push the axle in to where the splines are barely held into the differential but not visible behind the rear cover.
3. Position the snap ring on the pliers directly in front of the hole the axle will push through.
4. Push the axle in as hard as you can, this will pin the snap ring into the groove on the axle.
5. Apply pressure to the wheel hub and slowly turn it towards you as pry unseated parts of the snap ring into the groove with a flat head screw driver.
On the left is an intact snap ring on the right is the axle missing one.
Brand new snap ring from OGTS
The missing snap ring found in the bottom of the diff. Notice nothing is wrong with it!?