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DIY Transmission Replacement?

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6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHDIY Transmission Replacement?

Leading reported evidence

Repair job

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

I thought I read recently that when doing bearings and such it is best to get it all done in there that you want to include the future since the transmission isn't made to be torqued with more than one repair job.

DIY Transmission Replacement?
Read full discussion summary

Leading evidence: 'Repair job' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Repair job' (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.

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1 matching discussions · 6 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Replace 951 clutch

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

I had the same concern about replacing a 951 clutch which as you know is a nightmare.

DIY Transmission Replacement?

Set too tight of time frame and you should manage

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

Don't rush or set too tight of time frame and you should manage

DIY Transmission Replacement?

Use term 'transmission jack'

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

Plenty of other postings findable using the term 'transmission jack'

DIY Transmission Replacement?
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.

Repair job

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 thought I read recently that when doing bearings and such it is best to get it all done in there that you want to include the future since the transmission isn't made to be torqued with more than one repair job.

DIY Transmission Replacement?

Replace 951 clutch

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 had the same concern about replacing a 951 clutch which as you know is a nightmare.

DIY Transmission Replacement?

Set too tight of time frame and you should manage

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

Don't rush or set too tight of time frame and you should manage

DIY Transmission Replacement?

Use term 'transmission jack'

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

Plenty of other postings findable using the term 'transmission jack'

DIY Transmission Replacement?
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.

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

  • Rennlist: 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: 20261026T052503Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

To make a long story short. Bought a 1999 C4 in October. Had it PPIed by a dealer who passed it with flying colours. Unfortunately, they made some serious mistakes, but immediately refunded the PPI fee, when I expressed my issues.The big error was that the bearings in the transmission are worn and it is noisy (professionally diagnosed ). I have looked at variety of options and can get a remanufactured unit from the USA for between $2,500 and $3,300 + shipping (vendors include Vertex, Gbox and Motormeister) or can have it removed and rebuilt for here in Canada with almost new parts (removed from gearboxes that were upgraded to racing specs) for $3,500 to $4,500. I have access to a lift, a step by step procedure with pictures to remove a C2 gearbox. I would rate my skills as 4 or 5 on a scale of 1 to 10. Is this a DYI for me? If I can save $1K plus the hassle of getting the car to Toronto and back...

POST 2Original post

Yes if you have some skills and a way to lift the tranny, and the car high enough to get it out. Its not that bad. It will take time and you will be very dirty. There are some tough aspects but if you have the step by step, just take each one as it comes. Having some help is good as I stated its heavy and tough to man handle. But not impossible. You might need a couple tools you don't have so plan for time there too. Don't rush or set too tight of time frame and you should manage

POST 3 / ORIGINAL POSTEROriginal post

Thanks . Couple of questions Have a 7K lbs lift and will get a tranmission jack or something like that. Special Porsche tools or just other tools that I might not have?

POST 4Original post

This might help. Plenty of other postings findable using the term 'transmission jack' https://rennlist.com/forums/996-foru...loor-jack.html I thought I read recently that when doing bearings and such it is best to get it all done in there that you want to include the future since the transmission isn't made to be torqued with more than one repair job. It was explained the high pressure required for pressing the bearing back in stress the casing.

POST 6Original post

Fergus...go for it and if you could...document your steps. It's 2010 and make it your resolution to conquer it. I had the same concern about replacing a 951 clutch which as you know is a nightmare. I read post after post saying how difficult it was that only made me want to tackle the job. The biggest advise is preparation,...I read and digested every step and was prepared for the unknown. Patience was also a key factor but most importantly confidence that YOU CAN DO IT... Good Luck

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