CV joint (шрус) factory play and grease quality

Tags: #cv-joint · #drive-shaft · #conflict · #mazda-6-compat

Factory play/slack is reportedly normal (low confidence, 2025-11). X80 CV joints (шрусы) are said to have some factory play/slack by design — this is described as normal rather than a defect. When replacing a worn joint, the new joint may exhibit the same kind of play due to the design's tolerances, not necessarily a bad part. Some owners have experimented with transferring the tripod (трипоид) from a new joint onto an old, worn shaft to avoid reintroducing a joint with the same slack characteristic. There was also discussion of possible Mazda 6 AKPP CV joint compatibility, but spline differences would need to be verified before assuming a fit — this is unconfirmed. Given the low confidence and lack of consensus, treat these claims as anecdotal rather than settled fact.^1234567

Grease quality — factory fill is thin, not heavy (2025-11 report). Factory CV joints reportedly contain a thin/liquid grease, not the heavy-viscosity grease typically expected. Some owners found the factory grease quantity to be minimal — just a finger-dab amount — even inside new/original units. Recommendation when refurbishing a joint: repack with proper heavy-duty grease. The same complaint applies to hub bearings, which similarly had inadequate factory greasing — the general recommendation is to repack all sealed components that don't require special factory seals.⁵⁶⁸⁹

Dust boot replacement and Mazda upgrade path (2026-03 report). Internal CV joint dust boots on the manual-transmission side reportedly can be replaced with boots sourced from a Lada Granta. Separately, some owners want to upgrade the left-side CV joint (ШРУС) to a Mazda-sourced part — the Mazda shaft is slightly larger in diameter than the FAW original and needs to be turned down (machined) to fit. Reported parts costs (RU market, Mar 2026): an original X80 drive shaft assembly runs about 25,000 RUB; a Mazda-sourced drive shaft is cheaper at roughly 15,000–20,000 RUB but requires the machining step above. A creaking/crunching noise from the left CV assembly suggests boot failure or a worn joint needing attention.^{1011121314151617181920212223}

Diagnosis method — jack-and-rotate test, click vs. vibration symptom split (2024-07 report). To check CV joint (ШРУС) wear without special tools: (1) lift one front wheel on a jack; hold the drive shaft with one hand and rotate the wheel back and forth — small play is normal, but excessive play indicates wear. (2) Outer CV joint wear typically shows as a clicking/chattering sound during turns. (3) Inner CV joint wear typically shows as vibration during acceleration, more noticeable on the right side (longer shaft arm). A separate but related symptom — low-speed metal scraping — may instead indicate CV joint play, worn wheel bearings, or a brake issue, so it should not be assumed to be the CV joint without checking boots for tears/grease leakage and consulting a mechanic for a specific diagnosis.^242526272829

Catastrophic failure case and a driveshaft-vs-CV-joint creaking distinction (2026-06 report). One owner replaced both CV joints after a catastrophic failure: a loud crashing/grinding noise plus significant steering-wheel wobble ("жил своей жизнью" — the wheel "lived its own life"). After replacement, a creaking noise persisted when shifting between forward and reverse — this is the key diagnostic takeaway: since the creaking survived a full CV-joint replacement, it is more likely coming from the driveshaft/tripod assembly than the CV joints themselves. Multiple other owners report the same forward/reverse creaking symptom independently.³⁰³¹³²

Conflict — right-side "weak" internal CV joint claim vs. driveshaft-creaking evidence (2026-06 report). Some owners believe the right-side internal CV joint is a known weak point on the X80, based on informal community reputation. However, the case above (creaking persisting after both CV joints were replaced) is direct evidence against the CV joint being the source of the creaking specifically — the two claims are not fully reconciled. Read the "right side is weak" claim as an open, only partly-confirmed community belief, and the driveshaft/tripod explanation as better-supported for the forward/reverse creaking symptom specifically.^33343530

Boot clamp types and sizing (2026-05 report). Two main clamp types are used to secure the CV boot: worm-screw clamps (standard/universal, but often reported as a poor fit) and band/tape clamps (preferred by experienced owners, but require a special tensioning tool to install). For the tape-clamp type, a 75–90mm size is recommended for the X80's drive-shaft boots — buy the largest tape clamp available, since excess length is simply trimmed off after tensioning. A complete OEM boot+clamp assembly costs about 2,500 RUB (RU market, May 2026). Both clamp types are available at general auto-parts shops, where staff can help match the clamp to the specific joint being serviced. Conflict: owners initially disagreed on whether universal worm clamps would work at all (some said they would not fit properly); the community converged on tape clamps as the more reliable solution.^{363738394041424344454647484950}

Media

Reference photo showing two clamp tool types: one for tape clamps, one for worm clamps with tensioning mechanism

Second reference photo of the clamp tensioning tools

Related pages

• Drive shafts, CV joints & axle seals
• MT right drive shaft — inner CV joint alternatives
• Drive shaft vibration and CV joint repair
• CV joints and boots — INKO, Motus, tripod case
• Vibration at 65-80 km/h — CV joint wear

Sources

This page is compiled from 50 community messages. Every fact carries a numbered reference to its original author and message.

Last updated: 2026-10-29