I took my 2013 mustang gt into a shop to have the suspension looked at and diagnosed (squeak when going over bumps) they told me it was the shocks.
They also told me while they were diagnosing the car, they tried pushing the rear wheels with the car in the air and they showed me there was a very small amount of lateral play when pushing on the wheel maybe 1/8 of an inch and I could hear a metallic clicking noise when they pressed on the wheel like it was moving a little. They said the wheel bearings are OK and all the lug nuts are tight. They then told me there is some play in the axle and that I may need axle shafts soon but I can keep driving it for now.
Is it normal to have some side to side play (like 1/8 or 1/4 of an inch in the rear axle when pushing on the wheels or is any amount of play bad? Just trying to figure out if they’re trying to upsell me.
A live axle with semi-floating shafts (that’s what we call your set-up) will always have a slight amount of play. I’m sure there’s a spec somewhere for what the max allowed is and without feeling it myself it’s hard to tell for sure, but I wouldn’t be alarmed just yet.
I think they discovered something they are not familiar with. There needs to be some play to allow for thermal expansion. Check the play again, 10 minutes after a highway trip driving 75 mph for 4 hours.
Don’t worry about the axle movement in and out, with a c clip axle set up as the OP’s, if the axle is moving to much in and out, it is broke and you will be having other more pressing issues… lol
Remove the rotor and you will normally have much more in/out movement…