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(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

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Original source

4 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

Leading reported evidence

Install x73 anti roll

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
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.
Original post Read captured discussion
(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

Read full discussion summary

Leading evidence: 'Install x73 anti roll' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install x73 anti roll' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 4 captured posts examined · 1 partial discussions

Compare 3 other evidence results

Replace lower wishbones / coffin arms

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
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.
Original post Read captured discussion
(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

Run 987.2

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
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).
Original post Read captured discussion
(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

Use 996 part numbered items

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
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.
Original post Read captured discussion
(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Install x73 anti roll

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
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.
Original post Read captured discussion
(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

Replace lower wishbones / coffin arms

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
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.
Original post Read captured discussion
(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

Run 987.2

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
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).
Original post Read captured discussion
(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

Use 996 part numbered items

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
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.
Original post Read captured discussion
(987) Cayman S retro-fit R suspension conversion - Page 1 - Boxster/Cayman - PistonHeads UK

Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

PistonHeads: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T150451Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

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.

POST 2Original post

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.

POST 3Original post

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

POST 4Original post

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.

This is a source reference. Confirm exact model applicability in the original material.