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#1
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Rear diff, Axel flange question
I purchased a second hand rear diff. Which has 3:55 gears and posi to replace my original rear which has 4:10 and posi. I removed the drum brake backing plates and axels to inspect the bearings which seemed real tight. I was told that this rear had been in a car that was fully restored and the owner had wanted to go to an aftermarket rear for pro touring. Anyways the question is after installing new backing plates and the Axel I noticed that there may have been an issue with the passenger side Axel bearing at one time. I think that a new or repurposed flange was installed. I don’t see that it had been welded at all. Is this required? I have some pics of the flange in question and the drivers side as a reference. Thanks for any inputs.
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#2
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Well, I'm no rear-end specialist, but the two Moser rear-ends I have here, the axle housing ends are welded to the axle tubes. Check this video out where the axle tube ends and welded down lower into the axle tube then the weld is built up to same height as the axle tube itself. For a clean finish look.
https://www.youtube.com/watch?app=desktop&v=QwGZtB1ubnM
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68 Firebird. IA2 block, 505 cu in, SD Performance E-head, Solid roller 3600 weight. Reid TH400 4:11 gear. 29" slick. Best so far 9.95@134 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. |
#3
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That parting line/step might be just part of the flange, but not sure. If you look in the tube end you can probably see the 2nd parting line where it sould have been welded. They may have just cleaned it up on the outside.
If it's not welded, the moment you hit the brakes you will know. That 1st pic with the casting number, that hole should be filled with a weld I believe. That secures the tube to the center section. Would be moot if the tubes are welded all the way around in that area. It might leak tho. Did you ever see the rear in a car that was being driven? .
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. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
#4
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I have never seen this rear in a operating car. I think at this point I’ll have the flange welded and also weld the tube in that plug hole as well. I just don’t want a disaster on the road. Thanks for the inputs.
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