2G Rear lower control arm cover

[luv2rallye]

In my 99 factory Mitsubishi service manual it shows a "lower arm cover" (for vehicles with aero parts) on the rear lower arm assembly (item 1 in attached pic). My 99GST does not have this nor is it listed in the Mitsu ASA parts db (nor have I ever heard of it). Since my 99GST has factory aero parts (eg. side air dam MR248254) why don't I have this? Does anyone know it's Mitsu part number or shed any light about it like what vehicles have it, etc?

 

[19Eclipse90]

It shows up in the Euro version of ASA and appears unique to the 2G GST.

RR SUSP LWR ARM COVER LH: MB911591
RR SUSP LWR ARM COVER RH: MB911592

 

[romeen]

FWIW, I also have a '99 GST with factory aero and I don't have that cover either. I wonder what it's function is? Maybe reduce lift under the rear?

 

[luv2rallye]

I just assumed it was to help keep the lower arm and mounting bushing from rusting so bad although I don't know why it wouldn't be on U.S. models too.

 

[pauleyman]

A cover won't do anything to prevent rust. I've never seen this cover on any US car. Having not seen any Japanese or european versions I couldn't speak for those. I have heard people ask about it but with no real answers as to why it's there or which cars have it.

 

[Colt4G63 also]

It would make sense that it has something to do with airflow under the car, however I can see how it would also prevent rust by protecting the finish from gravel/debis.

 

[92nolatist]

Maybe its used for underbody "aerodynamics" to create less drag. I work on cars and I see every european car with some sort of shield or cover on just about everything you can imagine under the car.

Just my .02

 

[Colt4G63 also]

^^ He has a good point. Gasoline has long been a luxury item in Europe. Most family cars run on diesel because of the high cost of gasoline.

 

[92nolatist]

Could you elaborate a little more on that? Im not seeing why gas or diesel has anything to do with underbody covers

 

[Colt4G63 also]

A DSM is a gas powered car.
Gas costs a million dollars in Europe (hence the reason most cars are diesel).
Gas powered cars in Europe come with extra aerodynamic doodads (to save gas).
Are you getting it sparky?