Re: welding/redrilling rear axle flanges
[Re: Dave_J]
#2737359
01/28/20 09:48 AM
01/28/20 09:48 AM
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Joined: May 2019
Posts: 6,231 nowhere
Sniper
master
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master
Joined: May 2019
Posts: 6,231
nowhere
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They did do a bearing change so you couldn't just swap over to the bb axles Spacing for the brakes is different too. The 74 Dart Swinger \6 Auto had LBP and 2.94 SG. I kept the axle for my 65 B-cuda that was LBP (using 68 RR 4 piston front and Ford 9 inch rear). I ran that 7.25 for years but had an issue so I built a 8.25 using a truck's 8 3/8's SG and 3.55 gears. I put the 7.25's rear backing plates and 2.5x10 drums on that 8.25 housing. They fit OK. That's because the brake spacing issues is different with SBP axles. You didn't have one of those.
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Re: welding/redrilling rear axle flanges
[Re: HemiRick]
#2737379
01/28/20 11:18 AM
01/28/20 11:18 AM
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Joined: Sep 2003
Posts: 19,356 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,356
north of coder
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Dr. Diff does not sell replacement axles for the the 7 1/4 axle...... i didn't know that. thank you for the correction.
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Re: welding/redrilling rear axle flanges
[Re: moparx]
#2737644
01/29/20 11:08 AM
01/29/20 11:08 AM
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Joined: Jan 2003
Posts: 10,707 North Dakota
6PakBee
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,707
North Dakota
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The success of weld repairs on any metal is totally dependent on 1) material, 2) process, and 3) post weld treatment. If you know precisely what the original axle characteristics are, then go for it. Otherwise.... If it were me I'd call Dr. Diff and just chat for a while.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
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Re: welding/redrilling rear axle flanges
[Re: 6PakBee]
#2737720
01/29/20 01:48 PM
01/29/20 01:48 PM
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Joined: Jan 2003
Posts: 25,750 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,750
Rio Linda, CA
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Much ado about nothing, people have been redrilling axle flanges forever. Filling holes doesn't require welding.
The INTERNET, the MISinformation superhighway
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Re: welding/redrilling rear axle flanges
[Re: 6PakBee]
#2737727
01/29/20 02:06 PM
01/29/20 02:06 PM
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Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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The success of weld repairs on any metal is totally dependent on 1) material, 2) process, and 3) post weld treatment. If you know precisely what the original axle characteristics are, then go for it. Otherwise.... If it were me I'd call Dr. Diff and just chat for a while. But I am assuming the OP's solution has little symmetry in the suggested process, and even with post weld HT, it is unlikely the he has built in for unaccounted potential stress risers, because of the location, different metals, grain structure, etc. The fact the wheel constantly, in use, loads and unloads the welded area unevenly, is a prime candidate for eventual fatigue induced failure. The post weld HT is on a one off an educated guess if everyone knows what they are doing. Regardless, no matter what the OP does, there is IMO, less then a 50% it will fail, but I would not do it.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: welding/redrilling rear axle flanges
[Re: HemiRick]
#2743018
02/14/20 10:36 PM
02/14/20 10:36 PM
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Joined: Mar 2003
Posts: 4,848 Memphis
HemiRick
OP
master
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OP
master
Joined: Mar 2003
Posts: 4,848
Memphis
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I sent the axles off to Moser today, they say they can plug and redrill for $90 ea.
My buddy who was gonna weld em up did some research and found out that warping them was a real risk and his lathe is not set up at the moment, so he took a pass.
Take care, Rick 68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451
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