Bilstein internal bushing cut

[Rustam]

illustrating the width of the "shaft" here, the actual shock absorber body:

[BigKriss]

Okay so what's the point of it? More travel before it bottoms out ?

[Rustam]

Okay so what's the point of it? More travel before it bottoms out ?

Exactly. See Jeff's first picture.

[632 Regal]

After blowing 2 Bilstein shocks within 9 months I changed to the Boge Sachs "turbo" struts. The ride was much cleaner, not harsh like the Billies and did not bottom out, the billies still bottomed out even after chopping the bumpstop. I think the Boge Sachs is a progressive strut design since they were so much more refined yet controlled much better. I'd have to look up the shorter bumpstop I used, cost much less than the M5 stop and the height was very close.

[Rustam]

I changed to the Boge Sachs "turbo" struts.

Jeff, would you please share the part number on these turbo struts, if you can.

[632 Regal]

Jeff, would you please share the part number on these turbo struts, if you can.

36 747A

No longer information in regards to the Sachs turbo word. Possibly a marketing gimmick years ago but this is the same part number I used.

Here is a link to the proper bumpstops for the Sachs/Boge with lowered suspension:

http://www.bimmernut.com/forum/showt...r-lowered-cars

[Rustam]

36 747A

No longer information in regards to the Sachs turbo word.

Thank you Jeff.

I thought by "turbo" you meant "turbogas", as in Boge Turbogas. I saw this number 36 747A and thought the "A"
designation in this number probably means its an Automatic as opposed to Turbo.

Checked the Boge catalog, Turbo struts are designated with "P" (36-676-P):

(Boge and Sachs catalogs are taken from here http://www.zf.com/corporate/en/produ.../catalogs.html)

[632 Regal]

When I replaced the front Bilsteins I went with the Boge/Sachs turbos. To get the actual number I would have to dig through thousands of receipts. I just got this part number from a search and the number was not from me. The bumpstops number is me. I tried doing searches regarding turbo and came up with nothing. I imagine the standard Sachs/Boge are the same thing but not sure, not concentrating on this at the moment. Might check this after a trans job.

[632 Regal]

The bump stop is on the bottom of the shock ??

On the top between the strut and the top strut housing. I don't have a picture of this yet.

EDIT: if your using the Bilsteins the bumpstop is internal to the strut. As pictured above with the cutting, is what I thought would fix the issue but didn't.

[Rustam]