AtlasMG

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

ygmn

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.

bbirdwell

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.

Viper98912

No way I would do this unless it was strictly a track car and you know you're going to break something anyway

daynger

Its not the wheels skipping thats the issue, it will push the front of the car into understeer more unless you break traction with the rear.

AtlasMG

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 😄

AtlasMG

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.

AtlasMG

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.

AtlasMG

Yes I plan on sliding the car to get a feel for it. I want to see how it would be drifting.

Accidental L8 apex

If you can't figure out the multiquoting, I'd leave exploring the limits of your c55 to someone else.

Nokiemon

[QUOTE If you can't figure out the multiquoting, I'd leave exploring the limits of your c55 to someone else ][/QUOTE]

Totally agree.

AtlasMG

I know what multiquoting is it right next to quote and again stop replying to my posts if you dont like them.

AtlasMG

Totally agree.

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.

daynger

Since when did knowing how to use an online forum translate into driving talent?
I must have missed that driver mod......

AtlasMG

And if you're saying this stuff because it's a C55 AMG and it's a rare car I got it on action for $2100 it's a salvage title car that I fixed myself for 5k and has 108000 miles it will never be a clean perfect condition C55 that's why I want to try all this crazy stuff so others know how it will be if they do it to theres.

speedlimit

Hi everyone,

I deleted a couple of OT comments, kindly keep the flaming and baiting off this community. Thank you.

Bob

elliotpat

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.

cdk4219

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.