1974 stub axles

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Sep 25, 2020 | 02:25 PM

walleyfisher

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From: north of Chicago

2025 C2 of the Year ('64-'66) Finalist - Unmodified

2025 C3 of the Year Finalist - Modified

2025 C4 of the Year Finalist - Modified

2024 C4 of the Year Finalist - Modified

2023 C2 of the Year Finalist - Unmodified

2023 C4 of the Year Finalist- Modified

2022 C4 of the Year Finalist - Modified

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2021 C7 of the Year Winner -- Modified

2020 C4 of the Year Finalist - Modified

1974 stub axles

So I have decided to stop procrastinating and install new side axles.

History: My diff was rebuilt about 18,000 miles ago by a reputable Corvette restoration business

Was having my car aligned @ a really good speed shop who sets up modified Corvettes. They showed me how much play I have top to bottom axis

they said they must have reused my yokes and the play is more than .25” I am looking on the interweb @ harden remanufactured ones (Hevi-Duty). Prices are all over the board

Anybody use these:
https://www.ecklerscorvette.com/corv...Product_Viewed
or
https://www.zip-corvette.com/63-79-d...yABEgKXafD_BwE
or
https://www.ebay.com/i/193141670319?...evt=1&mkcid=28
ANY feed back would be greatly appreciated, Thanks

Sep 25, 2020 | 04:47 PM

MelWff

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Stub axle wear causes in and out play not up and down. Have you contacted the rebuilder and are you sure the current shop knows what they are doing?

Sep 25, 2020 | 06:26 PM

GTR1999

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From: Connecticut, USA

Quote:

Originally Posted by MelWff

Stub axle wear causes in and out play not up and down. Have you contacted the rebuilder and are you sure the current shop knows what they are doing?

Excellent points.
"If" the diff was correctly rebuilt it would not have .250" endplay in it at 180k miles let alone 18k miles. Many restoration shops will tell you they rebuild the diff but in fact sub it out, get it back and install it. If it's wrong you're the one who will find out and usually get stuck with rebuilding it over.

If the axles are indeed worn .250" they would be close to hitting the differential so you should look close at that.

Axle end play comes from worn axles, lousy posi setup, or worn cross shaft holes in the case. I would be willing to bet you have both axle and posi setup issues.

Those axles you listed more then likely all come from the same place and you better check them close when you get them. You can always call and ask them who rebuilds them.

Last edited by GTR1999; Sep 25, 2020 at 06:27 PM.

Sep 26, 2020 | 11:12 AM

walleyfisher

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Joined: Jun 2020

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From: north of Chicago

2025 C2 of the Year ('64-'66) Finalist - Unmodified

2025 C3 of the Year Finalist - Modified

2025 C4 of the Year Finalist - Modified

2024 C4 of the Year Finalist - Modified

2023 C2 of the Year Finalist - Unmodified

2023 C4 of the Year Finalist- Modified

2022 C4 of the Year Finalist - Modified

2022 C3 of the Year Finalist - Modified

2021 C7 of the Year Winner -- Modified

2020 C4 of the Year Finalist - Modified

Quote:

Originally Posted by MelWff

Stub axle wear causes in and out play not up and down. Have you contacted the rebuilder and are you sure the current shop knows what they are doing?

The stub axles do slide in and out not up and down. I was referring to the top of the tire tips in/out from the top and bottom, not front to back.
The shop that rebuilt my diff is a shop that restores Corvettes only. Thought they were good. I did not notice this problem when I did my frame off restoration. I have very wide tires on this car with a aggressive alignment to calm down twitchyness on uneven roads. I was woundering if this caused the wear on the axle shafts. There is no leaks or funny noises or clanking, diff seam to be operating fine except axle end play. I will find out when I disassemble diff to install new stub axles. I do not know anybody local to re machine mine that's why I am leaning to replacements thanks for any advice

Sep 26, 2020 | 12:56 PM

MelWff

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You should be contacting GTR1999, he does professional level differential rebuilds .

Sep 26, 2020 | 04:51 PM

73ls1

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From: Bismarck IL.

worn yokes

How much will worn yokes effect the alignment and handling? My 73 's passenger side yoke has a lot of play. I'm going to replace the yokes this winter. Thanks Charlie.

Sep 26, 2020 | 06:59 PM

MelWff

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Quote:

Originally Posted by 73ls1

How much will worn yokes effect the alignment and handling? My 73 's passenger side yoke has a lot of play. I'm going to replace the yokes this winter. Thanks Charlie.

that will cause camber to change based upon whether the yoke goes in or out, unstable handling.