(987) Cayman S retro-fit R suspension conversion

[handbraketurn]

Hi,

I understand the R suspension can fit onto the base s and it's been done fairly regularly.

Most of the forum posts I have found only refers to the springs, dampers and geos. The R OEM springs/dampers can all be sourced from OPC for a relatively reasonable cost.

Can anyone confirm if the anti-roll bars and bushes etc were all standard 's' spec or also need to be upgraded?

I understand the R also had an LSD, have been looking at MFactory Helical Limited Slip Differential assuming the OPC/OEM will be prohibitive in court.

Thanks in advance.

[ATM]

I dont know anything specific about the 987 but I do know Porsche publish all their exploded parts diagrams and part numbers online. So I would just compare the part numbers and this will tell you if they are the same or different. I changed the lower wishbones / coffin arms on my 981 for factory replacements and the 981 still uses 996 part numbered items for the rear but 997 part numbered items for the front. If the roll bars are different then the bushes probably are also - assumption.

I believe the standard LSD wears out quickly and most believe cars older than 10 years have shot their diff.

A guy with a YouTube channel has done some digging with the 981 and has retro fitted the X73 anti roll and to his PASM car.

[LennyM1984]

Yes there is a different rear ARB (and bushes) that can be bought quite cheaply new (from an OPC or the likes of Eurospares).

I have the springs and dampers on mine and it's a reasonable compromise for a road car between handling and ride

[3436cc]

ATM said:

I believe the standard LSD wears out quickly and most believe cars older than 10 years have shot their diff.

Diff wear is mileage not age related. The plates don't wear out with the car parked.

Anyway, I ran a 987.2 with the factory LSD from 35k to just over 60k, it was still locking fine at the end of that period (it was also 12 years old). That said, I'd probably assume a diff with 100k-plus under its belt wasn't really doing its job any longer.