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Castor questions

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCastor questions

Leading reported evidence

Check play

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
Scan a complete alignment sheet including the THRUST angle and post it here for an opinion but before going for alignment check play on all ball joints and bushings if worn, replace and THEN align.
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Castor questions

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Leading evidence: 'Check play' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check play' (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 · 3 captured posts examined · 0 partial discussions

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Replace castor)

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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 · Original poster
If you went for the adjustable control arm, would you install it on the right side, and match the 7.55 deg castor of the left side, or would you move the left arm to the right and match 8.05 deg (assuming swapping wouldn't change the castor)?
Original post Read captured discussion
Castor questions

Replace control arm if/when the ball joint goes

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 · Original poster
Do nothing - Put some rubber cement on the boot and replace the control arm if/when the ball joint goes.
Original post Read captured discussion
Castor questions

Use decent ball joint extractor)

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 · Original poster
Normally, I wouldn't do anything about this, but I tore the ball joint boot on the right control arm when I did the M030 install (next time I'll use a decent ball joint extractor).
Original post Read captured discussion
Castor questions

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.

Check play

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
Scan a complete alignment sheet including the THRUST angle and post it here for an opinion but before going for alignment check play on all ball joints and bushings if worn, replace and THEN align.
Original post Read captured discussion
Castor questions

Replace castor)

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 · Original poster
If you went for the adjustable control arm, would you install it on the right side, and match the 7.55 deg castor of the left side, or would you move the left arm to the right and match 8.05 deg (assuming swapping wouldn't change the castor)?
Original post Read captured discussion
Castor questions

Replace control arm if/when the ball joint goes

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 · Original poster
Do nothing - Put some rubber cement on the boot and replace the control arm if/when the ball joint goes.
Original post Read captured discussion
Castor questions

Use decent ball joint extractor)

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 · Original poster
Normally, I wouldn't do anything about this, but I tore the ball joint boot on the right control arm when I did the M030 install (next time I'll use a decent ball joint extractor).
Original post Read captured discussion
Castor questions

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.

3 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: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

My 2000 C4 Cab has tracked to the right since I bought it in September (not a hard pull, but a definite drift). After installing the RoW M030 and getting it aligned, it has improved, but still drifts slightly right (not just due to the crown in the road). Normally, I wouldn't do anything about this, but I tore the ball joint boot on the right control arm when I did the M030 install (next time I'll use a decent ball joint extractor). So, I think I have three choices: 1. Do nothing - Put some rubber cement on the boot and replace the control arm if/when the ball joint goes. 2. Put in a new series control arm now - cost about $260 plus new alignment 3. Put in a service control arm with adjustable castor eccentric - cost about $540 plus alignment. Current castor is 7.55 deg left/8.05 deg right. So, what would you do? Would you seize the opportunity to even out the castor? Or would you wait and see what happens? Is 1/2 degree of castor differential enough to cause this tracking? If you went for the adjustable control arm, would you install it on the right side, and match the 7.55 deg castor of the left side, or would you move the left arm to the right and match 8.05 deg (assuming swapping wouldn't change the castor)? Any thoughts appreciated.

POST 2Original post

Scan a complete alignment sheet including the THRUST angle and post it here for an opinion but before going for alignment check play on all ball joints and bushings if worn, replace and THEN align.

POST 3 / ORIGINAL POSTEROriginal post

Don't have access to a scanner at the moment, but here are the stats: Front caster (Left/right) 7.55/8.04 degrees Front camber (L/R) -0.37/-0.44 deg Front toe (L/R) 1/32" 1/32" Rear camber (L/R) -1.24/-1.17 degrees Rear toe (L/R) 1/32" 1/32" Thrust angle -0.01 Secondary Angles SAI (Left/Right) 17.44/18.76 degrees Included angle (L/R) 17.07/18.32 deg Setback (Front/Rear) -0.13" 0.39" Track Width Diff. -2.73" Wheel base diff. -0.52"

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