94-00 C W202 upper control arm differences?
 

On a W202 ( specifically a 97 C280 / 99 C230 ) I'm finding 2 upper control arms. Doorman shows Sport / non Sport. According to Doorman, the Sport W202 uses the same arm as a W210. Moog shows all the same. ( listings below ) I'm trying to determine differences between the two and not what to buy.

I'd tend to think the differences are bushing stiffness but I'd expect Doorman to consolidate more than Moog ( the Moog # is a "R" replacement series RE: lower cost than their regular line. )

If it isn't busing stiffness it might be ball joint stud length as raising the upper control arm at the ball joint gives more camber gain on suspension compression. A shorter arm would give more neg camber but I don't see either of these being consolidated into one arm for all.

Has anyone compared these? Thanks

Left front upper with sport

DORMAN 520751 Control Arm 2083301307, 2103305007, 2103308707, WC170751

MERCEDES-BENZ C230 1997-2000
MERCEDES-BENZ C280 1994-2000
MERCEDES-BENZ C36 AMG 1995-1997
MERCEDES-BENZ E320 1996-2003
MERCEDES-BENZ E420 1997
MERCEDES-BENZ E430 1998-2002
MERCEDES-BENZ E55 AMG 1999-2002


Left front upper regular

DORMAN 521295 Control Arm {#2023304807, WC171295}

MERCEDES-BENZ C230 1997-2000
MERCEDES-BENZ C280 1994-2000
MERCEDES-BENZ C43 AMG 1998-2000
MERCEDES-BENZ CLK320 1998-2002
MERCEDES-BENZ SLK230 1998-2000



Left front upper all

MOOG RK90423 Control Arm 2023304807

MERCEDES-BENZ C220 1994-1996
MERCEDES-BENZ C230 1997-2000
MERCEDES-BENZ C280 1994-2000
MERCEDES-BENZ C36 AMG 1996-1997
MERCEDES-BENZ C43 AMG 1998-2000
MERCEDES-BENZ CLK320 1998-2002
MERCEDES-BENZ CLK430 1999-2003
MERCEDES-BENZ CLK55 AMG 2001-2002
MERCEDES-BENZ E320 1996-2002
MERCEDES-BENZ E420 1997
MERCEDES-BENZ E430 2000-2002
MERCEDES-BENZ E55 AMG 1999-2002
MERCEDES-BENZ SLK230 2000-2003
MERCEDES-BENZ SLK32 AMG 2002-2003
MERCEDES-BENZ SLK320 2001-2004