fullymatted.
Back to search
986Forum

How tough is a Boxster S gearbox - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Add to repair workspace
Open repair workspace
Original source
10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHHow tough is a Boxster S gearbox - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Check those

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

I dont think its motor mounts or shift cables bc my shop checked those.

Original post Read captured discussion
How tough is a Boxster S gearbox - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'Check those' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check those' (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 · 10 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Use original stock 1998 2.5 5 speed

Suggestion or failed attempt

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 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

My 3.6 is using the original stock 1998 2.5 5 speed.

Original post Read captured discussion
How tough is a Boxster S gearbox - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (2)

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

Check those

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 dont think its motor mounts or shift cables bc my shop checked those.

Original post Read captured discussion
How tough is a Boxster S gearbox - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use original stock 1998 2.5 5 speed

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

My 3.6 is using the original stock 1998 2.5 5 speed.

Original post Read captured discussion
How tough is a Boxster S gearbox - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

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

  • 986Forum: 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: 20261026T222516Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I was looking over the specs. on my newly purchased 02 Roock 340. They beefed up all the important stuff except the gearbox . can the boxster gearbox handle the added torque of the 3.6 engine long term.

POST 2Original post

Give Jake Raby a call at Flat6innovations (see above sponsor). If he doesn't know, no one will.

POST 3Original post

Also, there is a You tube video floating around that shows how to check for trans bearing wear -- basically you drain the trans fluid and stick a little finger inside the hole and feel for grease and shavings on the magnet near the drain hole. I'm just passing on second hand info -- but you might also want to check with "Tholyoak" in Kansas who has put several of these motor swaps in older Boxsters. FWIW, etc... Take care,

POST 4Original post

It should be up to the task no problem. The S trans is a carry over item from the 996.

POST 5Original post

My 3.6 is using the original stock 1998 2.5 5 speed. Between Tholyoak and I it has over 30K since the conversion, no issues so far.

POST 6Original post

The Boxster S 6 speed is the same base tranny thats used in the 911. The internals of these units are robust, only having pinion bearing failures due to the bearing design. I have yet to see one break from power additions..

POST 7 / ORIGINAL POSTEROriginal post

that is really good news. even with the sloppy 5 speed

POST 8 / ORIGINAL POSTEROriginal post

any issues or quirks with the 3.6 conversion

POST 9Original post

With my 3.6L the only thing that changed is i cant downshift into 2nd now. I dont think its motor mounts or shift cables bc my shop checked those. I have solid motor mounts not oil based. Any ideas Jake, anyone?

POST 10Original post

I've had an off and on issue with the eGas other than that, it's been great.

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