Pay in installments of $5.66 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 29 - Jul 4
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
e46 gear ratios BMW M Gear Ratio Swap Set | M3, M5, M6, Z4M Differential UpgradeBMW M Gear Ratio Swap Set Complete Installation Kit Enhance the performance and driving experience of your BMW M3, M5, M6, and Z4 M with the RacingDiffs Gear Ratio Swap Set. The kit includes all essential components to change your differentials gear ratio with factory level precision and reliability. Key Features Complete kit: All parts required for a precise, repeatable gear ratio swapno guesswork. Performance gains: Tailor acceleration and
BMW M Gear Ratio Swap Set — Complete Installation Kit
Enhance the performance and driving experience of your BMW M3, M5, M6, and Z4 M with the RacingDiffs Gear Ratio Swap Set. The kit includes all essential components to change your differential’s gear ratio with factory-level precision and reliability.
Key Features
- Complete kit: All parts required for a precise, repeatable gear-ratio swap—no guesswork.
- Performance gains: Tailor acceleration and drivability to your use case (street, track, time attack).
- OEM-level precision: Components manufactured to meet or exceed OEM specifications.
- Guided install: Step-by-step tutorial + video walkthrough linked below.
What’s in the Box
- Adjustment Shim Set — aligns and positions internal components correctly.
- Pinion Oil Seal — prevents leaks and maintains optimal lubrication.
- Large Pinion Bearing — required to install onto the new pinion from your new gear set.
- Crush Sleeve Shim — sets the correct pinion bearing preload.
- Pinion Position Shim Set (2.5–3.5 mm) — precise pinion depth adjustment.
Performance Benefits
- Stronger acceleration with the right final drive for your build and tracks.
- Optimized top-end and gear spacing for your engine’s power band.
- Long-term reliability when backlash and preload are set correctly.
- Expert support from RacingDiffs if you need guidance selecting shims or ratios.
Technical Specs / Installation Tips
| Use case | Gear ratio change on BMW M differentials (see fitment variants below). |
| Pinion setup | Set pinion depth using the Pinion Position Shim Set (2.5–3.5 mm) and establish correct preload with the Crush Sleeve Shim. |
| Backlash | Adjust with the Adjustment Shim Set until backlash is within spec; verify gear contact pattern with marking compound. |
| Sealing | Install the new Pinion Oil Seal; lightly oil lips; ensure no nicks on yoke surface. |
| Torque notes | Clean threads; apply medium-strength threadlocker on ring-gear bolts; torque in a star pattern per BMW spec. |
| OEM references | Backlash adjustment shims: 33139065736 (33-13-9-065-736 / 33 13 9 065 736 / 33.13.9.065.736) 33139065737 (33-13-9-065-737 / 33 13 9 065 737 / 33.13.9.065.737) |
Tip: Always re-check preload/backlash after first heat cycle or track day.
Fitment (Variants)
Variant 1 (V1):
- E36 M3 (3.2 S52)
- E46 M3
- E28 M5, M535
- E34 M5
- E39 M5
- E24 M6
- E60 M5
- E63 / E64 M6
- Z4 M
Variant 2 (V2):
- E90 / E92 / E93 M3
If you’re unsure about compatibility, send us the last 7 digits of your VIN and we’ll confirm the right set for your car.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 2036 reviews
Sort
Product Reviews
★★★★★ 5
Luxurious Feel, Durable Build… but Full Rotation Privileges Have Been Revoked 💙🦴 🐾
Color: Blue, Size: 6 IN, Color: Blue, Size: 6 IN
🐾 Hi, I’m PVD; toy curator, plush critic & occasional chew sommelier.
This armadillo arrived beautifully packaged and immediately met my standards for texture, squeak clarity and cuddle factor. I originally gave it 5 stars for quality; and still do! But today I’m updating the review to reflect my current toy lifestyle rotation. 😌
What impressed me from day one:
✔️ High-end plush feel; soft enough to nap on, tough enough for energetic zoom bites and great relief from teething
✔️ Strong stitching; survived multiple “stress tests” (I chewed with intention)
✔️ HQ squeaker; not tinny or annoying, more of a honk
✔️ 6in is perfect size for small breeds; easy to carry during dramatic hallway walks
Why it now gets 4 stars from a seasoned toy collector:
✘ As my luxury toy collection expanded, this one gets grabbed less often
✘ Simple design; I now favor more interactive or complex textures
✘ Still “keep-worthy,” just no longer VIP spot on the chaise lounge
Best For:
• Pups who enjoy soft comfort toys or emotional support snuggles
• Light to moderate chewers
• Dogs who like to carry their plushes around proudly
• Ideal as a teething toy or thoughtful gift
🚫 Not ideal for: power chewers or highly stimulation-driven pups (like me now; my taste evolved)
📝 Final Re-Barks:
Still recommend for pups who love cuddly squeaky companions. Great starter plush and great quality; just know that ultra-picky toy enthusiasts may rotate it out once newer models (or squeakier friends) arrive.
— PVD (Plush Aficionado, Toy Rotation Director & High-Maintenance Household Icon) 🐶💁🏻♂️✨
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025
★★★★★ 5
Hollypet Gray is excellent
Color: Gray, Size: 14 IN
This GrayHollpet comes down the assembly line that produces a good product. It is tough and stays together Don't buy the brown one, it started to fall apart in less than 30 days.
These can be a good product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
★★★★★ 4
Super cute
Color: Gray, Size: 8 IN
Super cute in person. Didn’t last two weeks with our aggressive chewer but he sure had fun with it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
★★★★★ 5
We call him Armie! Dog loves it.
Color: Blue, Size: 14 IN
The dog loves it! Routinely carries it around squeaking all the way. The squeak is more like a quack and makes everyone giggle. It’s nice and big so a good match for our tall dog. Probably too big though for smaller dogs. Holding up well so far and that’s no mean feat given our pup’s destruction skills.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
★★★★★ 5
The chewability of this toy from 1-10 is a 10 all day 👍🏻
Color: Gray, Size: 8 IN
I have a Boston Terrier and he’s a serious extreme CHEWER! He loves this Hollypet Plush Dog Squeaky Toy Stuffed Armadillo! My doh gnaws on the tail, legs, the ears and the nose and all are still in tact. He’s had it for what I consider a long time. Usually he rips toys apart in the first day but this has been months! I throw this in the washing machine with his other stuffed animal toys simply because the ears, noses and tail get so stiff from chewing on them they need to be washed and they bounce right back just like new. Chewability from 1-10 is a 10 all day long! He plays with it a for a long while each time he uses it. Very active with his Armadillo and it’s so cute and the squeaker is just right, it’s not that loud screaming squeak. If he ever lost this or it got destroyed somehow? I’d buy him this all over again. Worth the money!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2026