Trying to fit an aluminium W126 / 107 trailing arm to a W123 - a question of compatib - Page 3 - PeachParts Mercedes-Benz Forum

Stretch · #1 03-14-2013, 11:53 AM

Thanks for the update daw_two

Stretch · #2 04-29-2013, 08:43 AM

(Sorry to use this forum as my personal note pad!)

SEC rear caliper left hand side P/N is 126 420 04 83

SEC rear caliper right hand side P/N is 126 420 05 83

MBZ123 · #3 05-03-2013, 10:44 PM

Quote:

Originally Posted by Stretch

(Sorry to use this forum as my personal note pad!)

SEC rear caliper left hand side P/N is 126 420 04 83

SEC rear caliper left hand side P/N is 126 420 05 83

Did you mean to write right? (For P/N 126 420 05 83.) Sometimes, okay most times, I manage to confuse myself too.

Thanks for documenting the data BTW.

MBZ123

Stretch · #4 05-04-2013, 01:16 AM

Quote:

Originally Posted by MBZ123

Did you mean to write right? (For P/N 126 420 05 83.) Sometimes, okay most times, I manage to confuse myself too.

Thanks for documenting the data BTW.

MBZ123

Ummmm yes I think I did! That'll be the left on the right, right?

(Made good now - thanks)

Graham · #5 09-05-2013, 08:30 AM

I was offered a set of aluminum trailing arms off a 6.9. But I assume they would have at least same problems as you have found with 126 arms? Would you agree? Especially if I want plug and play.

Simpler=Better · #6 09-05-2013, 09:34 AM

A custom roll bar should only be around $400, and you could go super heavy. Or cut up the 126 bar, sleeve it with tubing, and weld back together.

Stretch · #7 09-05-2013, 11:12 AM

Quote:

Originally Posted by Simpler=Better

A custom roll bar should only be around $400, and you could go super heavy. Or cut up the 126 bar, sleeve it with tubing, and weld back together.

I was thinking 10 minutes with my TIG welder and the W126 / 107 ends welded onto a W123 bar...

Simpler=Better · #8 09-05-2013, 01:24 PM

Quote:

Originally Posted by Stretch

I was thinking 10 minutes with my TIG welder and the W126 / 107 ends welded onto a W123 bar...

Oh yeah, if you have a welder why is this even a question?

Stretch · #9 09-05-2013, 01:42 PM

Quote:

Originally Posted by Simpler=Better

Oh yeah, if you have a welder why is this even a question?

It isn't really a question anymore. This thread has developed over quite a few months. It just needs someone to do it and show that it can actually be done.

If the little d gets sorted out and the car officially becomes mine then I'll do the conversion - future situation permitting.

I am a bit concerned about welding a torsion bar though.

Simpler=Better · #10 09-05-2013, 03:29 PM

Quote:

Originally Posted by Stretch

It isn't really a question anymore. This thread has developed over quite a few months. It just needs someone to do it and show that it can actually be done.

If the little d gets sorted out and the car officially becomes mine then I'll do the conversion - future situation permitting.

I am a bit concerned about welding a torsion bar though.

Don't be :p

Just sleeve any cuts, and preheat before welding. Let the whole piece cool slowly (wrap with newspapers, old fur coat, etc) so it doesn't get too brittle.

greazzer · #11 12-19-2014, 09:33 PM

Bump ...

So, was this ever attempted ?

Stretch · #12 12-21-2014, 04:27 AM

I haven't gotten vey far with the W123 project

http://www.peachparts.com/shopforum/restoration-projects-long-term-builds/358482-ups-downs-owning-w123-130-non-turbo-300d.html

I'm still arsing about with welding. If this gets done before I have to move house then there is a chance that I will get the aluminium trailing arms fitted. I know they will fit and it will all work - it is just the anti-roll bar that needs to be sorted.

If I don't get the welding done and the paint on before I get kicked out I'll be scrapping the vehicle.

greazzer · #13 12-21-2014, 08:03 AM

Quote:

Originally Posted by Stretch

I haven't gotten vey far with the W123 project

http://www.peachparts.com/shopforum/restoration-projects-long-term-builds/358482-ups-downs-owning-w123-130-non-turbo-300d.html

I'm still arsing about with welding. If this gets done before I have to move house then there is a chance that I will get the aluminium trailing arms fitted. I know they will fit and it will all work - it is just the anti-roll bar that needs to be sorted.

If I don't get the welding done and the paint on before I get kicked out I'll be scrapping the vehicle.

The mod'ing world's fate rests in your hands Army ... The AMG (pre-merger) crowd comments on this mystical upgrade but no proof of its existence yet. So ....

Graham · #14 12-21-2014, 10:00 AM

Quote:

Originally Posted by Stretch

If I don't get the welding done and the paint on before I get kicked out I'll be scrapping the vehicle.

"Don't leave that there - I'll take it to bits!"

And leave it that way

Stretch · #15 12-21-2014, 11:39 AM

Quote:

Originally Posted by greazzer

The mod'ing world's fate rests in your hands Army ... The AMG (pre-merger) crowd comments on this mystical upgrade but no proof of its existence yet. So ....

I'll do what I can - one week ago I was about to ring the "we'll collect any metal" chap. Things are not going well...

...I'm pretty sure this can be done with minimal arsing about.

Quote:

Originally Posted by Graham

"Don't leave that there - I'll take it to bits!"

And leave it that way

...if I have half a chance I'll get it back up in some sort of sale-able state rather than just chucking it away but I might not have that luxury.