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I am assuming this isn't normal slack but once the weight of the car is on it maybe it's fine. There is virtually no play from the 3 to 9 o'clock position. The car drives good and every now and then I get a noise from the rear end occasionally and just trying to figure out where the noise it coming from.
The second Vid shows more movement from the half shaft flange, taking the half shaft out is easy enough to verify. While the shaft is out, you can verify the spindle bearings.
On the positive note: It's not that hard to rebuild the trailing arms.
I agree that the second and third videos seem to be showing some slop in the outer U-joints of the half shafts. If the outer joints are worn, it stands to reason that the inner joints are loose as well.
All the videos seem to show the half-shafts/side yokes are moving in and out of the differential more than they should. As mentioned, you'll need to disconnect the half shafts from the spindle to determine just how much of the movement is in the side yoke and how much is in the U-joints. Don't be surprised if you can pull one (or both) half-shaft & side yoke from the differential.
Depending on what you discover, the solution can become challenging.
The stub axles out of the rear housing have 0.11 & 0.09 in/out movement in / out. I am going to replace the 4 u-joints & look up what the spec is on the stub axle movement.
The stub axles out of the rear housing have 0.11 & 0.09 in/out movement in / out. I am going to replace the 4 u-joints & look up what the spec is on the stub axle movement.
I would like to see 0.010 max when replaced with new yokes, and many look at 0.025 - 0.050 max. anything more than this the c-clip is ready to fall off and then there will be nothing holding the side yoke in the diff.
With the amount you measured it is time to open the diff and have a look, but you will need to replace the side yokes. You may also have posi clutch wear, but until a new yoke is installed and measured again it is impossible to tell.
Did you also check the end play of the wheel bearings ?. With the side yoke removed this is the best time to check them.
I will pull the shafts off the wheel bearings & check them to see what they are at.
Also, my car is a '69 & one of the half shafts are marked like a salvage as '74 Corvette. Are '69 & '74 shafts the same?
Also, when looking at pics online it seems mine has adjustable bars for camber & the stocks ones are not adjustable.
The original ones are adjustable at the bracket mounted to the bottom of the differential with an eccentric bolt. photo courtesy Paragon Corvette Reproductions https://www.paragoncorvette.com/p-35...-bolt-kit.aspx
The original ones are adjustable at the bracket mounted to the bottom of the differential with an eccentric bolt. photo courtesy Paragon Corvette Reproductions https://www.paragoncorvette.com/p-35...-bolt-kit.aspx
Good luck... GUSTO
Yes, the cam bolts are the adjustment for the stock bars that are solid but someone added some threaded bars to adjust even more. Not sure why, maybe easier to make changes on the fly.
Rear axle slop
