Welding Differentail
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Joined: Apr 2017
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From: Florida
2006 Mercedes-benz C55 AMG
Welding Differentail
I just got a differential from a C55 at a junk yard and I was wondering if anyone has tried welding the diff or if it's even possible to weld it. Is there any problems to having a welded diff on a C55 other then wheel hop when turning and faster wear
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2015 E400 Sedan
first welding gears is difficult since they are very hard and lack carbon due to metal chosen. It can be done but mainly slow offroad vehicles do it as a cheap locked diffy.
For road car where it spins fast inside diffy I would be worried about out of balance gears and the whole thing exploding gear parts and you come to stop. or expldoing due to weld base metal failure.
Also when you take slow speed turns you will get inside wheel hop bad which tends to load up axle with torque and then release suddenly when the wheel hops which would end up breaking your weld....
Rear end needs a limited slip (aka Posi traction) for road use.
Now if all you do is drag race go ahead weld it up but watch at end of runs when you have to turn as it will hop.
For road car where it spins fast inside diffy I would be worried about out of balance gears and the whole thing exploding gear parts and you come to stop. or expldoing due to weld base metal failure.
Also when you take slow speed turns you will get inside wheel hop bad which tends to load up axle with torque and then release suddenly when the wheel hops which would end up breaking your weld....
Rear end needs a limited slip (aka Posi traction) for road use.
Now if all you do is drag race go ahead weld it up but watch at end of runs when you have to turn as it will hop.
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From: Republic of Texas
'99 and '05 E55 AMG
Don't weld it. Jump4hx on the W211 AMG forum did just that and his differential snapped an axle on the other side of the country from his home. It was quite the adventure. Watch his video.
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Joined: Apr 2017
Posts: 101
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From: Florida
2006 Mercedes-benz C55 AMG
first welding gears is difficult since they are very hard and lack carbon due to metal chosen. It can be done but mainly slow offroad vehicles do it as a cheap locked diffy.
For road car where it spins fast inside diffy I would be worried about out of balance gears and the whole thing exploding gear parts and you come to stop. or expldoing due to weld base metal failure.
Also when you take slow speed turns you will get inside wheel hop bad which tends to load up axle with torque and then release suddenly when the wheel hops which would end up breaking your weld....
Rear end needs a limited slip (aka Posi traction) for road use.
Now if all you do is drag race go ahead weld it up but watch at end of runs when you have to turn as it will hop.
For road car where it spins fast inside diffy I would be worried about out of balance gears and the whole thing exploding gear parts and you come to stop. or expldoing due to weld base metal failure.
Also when you take slow speed turns you will get inside wheel hop bad which tends to load up axle with torque and then release suddenly when the wheel hops which would end up breaking your weld....
Rear end needs a limited slip (aka Posi traction) for road use.
Now if all you do is drag race go ahead weld it up but watch at end of runs when you have to turn as it will hop.
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Joined: Apr 2017
Posts: 101
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From: Florida
2006 Mercedes-benz C55 AMG
Don't weld it. Jump4hx on the W211 AMG forum did just that and his differential snapped an axle on the other side of the country from his home. It was quite the adventure. Watch his video.
https://www.youtube.com/watch?v=_d3n61cICZU
https://www.youtube.com/watch?v=_d3n61cICZU
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From: Florida
2006 Mercedes-benz C55 AMG
Ya its not going to be just a track car I will be driving it daily I just want to get a feel for how it will be getting the power down and having a locked diff. What would you think could break because of it being welded? If the diff breaks it's okay I got it at junk yard and I have my stock one to swap if anything.
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Thread Starter
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Joined: Apr 2017
Posts: 101
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From: Florida
2006 Mercedes-benz C55 AMG
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2013 c63 Magnuson SCed
I dont really care if the weld breaks if nothing else does. I plan on driving the car everyday I want to weld it so the car can get the power down and it would slide better I plan on drifting it. I am doing this on a junkyard C55 diff so i will have my Stock one if anything happens and if i dont like it I'll just swap it back out and I'm not going to weld it myself im going to take it to a shop thay builds race cars have them weld the gears and weld in 2 thick plates so its extra strong. Thanks for the replay 😄
Oh wow really I didn't think that would happen I know the diff can explode the gears but not an axle. I still would like to try I have my stock one so if anything I'll change it back I just want to feel the car putting the power down and how it will slide. thanks for the replay I'll look more into the axles snapping.
Ya its not going to be just a track car I will be driving it daily I just want to get a feel for how it will be getting the power down and having a locked diff. What would you think could break because of it being welded? If the diff breaks it's okay I got it at junk yard and I have my stock one to swap if anything.
what's so ridiculous me trying to see what a C55 is capable of? trying to find things out about the car? learn more about my car? is it bad to ask questions all you are doing it just being negative and bringing peoples ideas down no wonder America knows nothing of what a mercedes is capable of un like people in europe pushing mercedes cars and leaning a lot about them like a manual twin turbo m119. If you dont like what I post dont reply with your negativity
Member
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From: Northern CA
CLK55 AMG, SL55 AMG, C55 AMG
[QUOTE If you can't figure out the multiquoting, I'd leave exploring the limits of your c55 to someone else ][/QUOTE]
Totally agree.
Totally agree.
Last edited by Nokiemon; Dec 11, 2018 at 04:31 PM.
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Joined: Apr 2017
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From: Florida
2006 Mercedes-benz C55 AMG
I know what multiquoting is it right next to quote and again stop replying to my posts if you dont like them.
Last edited by AtlasMG; Dec 11, 2018 at 12:27 AM.
Thread Starter
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Joined: Apr 2017
Posts: 101
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From: Florida
2006 Mercedes-benz C55 AMG
Just a major disaster waiting to happen if you try to weld it up.
Look at other alternatives to save you from a serious headache.[/QUOTE]
What headaches would I get? from what I hear diff mite break or an axle but idk about axle I'm pretty sure they are really strong. Plus it's no big deal to me if I have to put the stock diff back in I got one from a junkyard so I'll weld that on and keep the stock one for when think of selling or if I dont like how the welded diff feels.
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C55 AMG
Thread Starter
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Joined: Apr 2017
Posts: 101
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From: Florida
2006 Mercedes-benz C55 AMG
I like them just fine as those who lack common sense strike me as humorous. Trust me, I will check on every thread you start from here to eternity simply for the giggles.
If the forum functions are taxing his brain, trying to hillbilly mod his c55 isn't wise. Only you brought up driving talent.
If the forum functions are taxing his brain, trying to hillbilly mod his c55 isn't wise. Only you brought up driving talent.
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Mersedes
It is possible to weld the difference from a C55, but it is quite hard work. A man who would not have skills in welding certainly could not do it. But unfortunately, few men show a desire to learn how to weld. When I went to the welding course, there were only 4 men who came to learn to be professional welders. And even the fact that the number of jobs for welders in the U.S. is projected to rise by 6% does not motivate men to learn how to weld. That's why in such moments as in your case, they could not fix the problem. So if you want to weld that difference and you don't have skills in the field of welding, I recommend you to turn to a specialist.
Last edited by elliotpat; Jun 28, 2022 at 06:39 PM.
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95 SL600
To update an ancient thread about the silliness of welding a the differential on an independent rear car, I will tell you that it’s a terrible idea for anything but a drag strip car. The loads it will place on the rear axle joints under corners will tear the joints up quickly and the car will be very unstable in corners.
