Pay in installments of $5.21 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 18 - Sep 23
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
bmw gear ratios BMW Differential Gear ratio Swap set - Essential for smooth gear ratio changeBMW Gear Ratio Swap Set Complete Installation Kit (168 188 210 mm) Thinking of changing the gear ratio of your BMW differential? The RacingDiffs Gear Ratio Swap Set includes all essential components to complete a precise, reliable swap and unlock better acceleration, drivability, and overall performance. Key Features Complete kit: Everything required for a seamless gear ratio change with factory level precision. Performance gains: Tailor acceleration,
BMW Gear Ratio Swap Set — Complete Installation Kit (168 / 188 / 210 mm)
Thinking of changing the gear ratio of your BMW differential? The RacingDiffs Gear Ratio Swap Set includes all essential components to complete a precise, reliable swap and unlock better acceleration, drivability, and overall performance.
Key Features
- Complete kit: Everything required for a seamless gear ratio change with factory-level precision.
- Performance gains: Tailor acceleration, top speed and gear spacing to your driving style and tracks.
- OEM-grade quality: Components meet or exceed OEM specs for durability and long service life.
What’s in the Box
- Adjustment Shim Set / C-Clip Set — ensures proper alignment and backlash adjustment.
- Pinion Oil Seal — maintains lubrication and prevents leaks.
- Large Pinion Bearing — to press onto the new pinion gear.
- Crush Sleeve Shim — for setting correct pinion preload.
- Pinion Depth Shim Set (3.3–3.7 mm) — precise pinion depth positioning.
Performance Benefits
- Stronger acceleration with shorter final drives; or reduced cruising RPM with taller ratios.
- Improved drivability by matching ratio to engine power band and tire diameter.
- Long-term reliability when preload/backlash are set correctly during assembly.
- Expert support — guides and resources to help you complete the swap confidently.
Fitment Confirmation
- Use the BMWFans.info database: Follow this guide video to identify your differential type and parts: How to check diff type.
- VIN check: Send us the last 7 digits of your VIN and we’ll confirm the correct set for your car: Contact RacingDiffs.
Works with common BMW differential sizes: 168 mm, 188 mm, and 210 mm. Verify exact application before ordering.
Technical Specs / Installation Tips
| Pinion depth | Set using the Pinion Depth Shim Set (3.3–3.7 mm). Verify with contact pattern. |
| Pinion preload | Establish with the Crush Sleeve Shim per BMW specs (feel for smooth rotation, no end play). |
| Backlash | Adjust via Adjustment Shim / C-Clip Set until within spec; measure at ring gear with a dial indicator. |
| Sealing | Install the new Pinion Oil Seal; lightly oil lips; inspect yoke surface for grooves. |
| Fasteners | Clean threads, apply medium-strength threadlocker to ring-gear bolts, torque in a star pattern to BMW spec. |
Re-check preload and backlash after the first heat cycle or track session.
OEM Cross-References (Backlash Adjustment Shims)
| Diff Size | OEM Part Numbers |
|---|---|
| 168 mm | 33139065731 / 33-13-9-065-731 / 33 13 9 065 731 / 33.13.9.065.731 33139065732 / 33-13-9-065-732 / 33 13 9 065 732 / 33.13.9.065.732 33139065733 / 33-13-9-065-733 / 33 13 9 065 733 / 33.13.9.065.733 |
| 188 mm | 33139065734 / 33-13-9-065-734 / 33 13 9 065 734 / 33.13.9.065.734 33139065735 / 33-13-9-065-735 / 33 13 9 065 735 / 33.13.9.065.735 |
| 210 mm | 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 |
If you’re unsure about compatibility, send us the last 7 digits of your VIN and we’ll confirm the correct set for your build.
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
4.4 ★★★★★
Based on 23 reviews
Sort
Product Reviews
★★★★★ 5
Only Sublimation Ink for Me!!
I recently bought my second set of Hippo Sublimation Ink and continue to be thrilled with the results. This ink has proven to be a fantastic choice for my sublimation projects, delivering on all fronts.
Hippo Sublimation Ink works exactly as promised. It sublimates effortlessly onto poly blend items, producing bright, vivid transfers every time. The colors are striking and true to the design, which is crucial for quality sublimation work. The results are consistently impressive, making this ink a reliable option for any project.
One of the standout features is the great price. Hippo Sublimation Ink offers excellent value for money compared to other brands. Despite its affordability, it performs just as well—if not better—than more expensive options on the market. Using Hippo Ink in my Epson printer has been a breeze. The ink flows smoothly and doesn’t clog the printer, even after not being used for two weeks!!! I’ve had issues with other brands clogging my printer, leading to frustration and wasted time, not to mention all the maintenance puts wear and tear on the printer. With Hippo, there’s been no such problem, making it a hassle-free choice for sublimation printing.
Hippo Sublimation Ink has exceeded my expectations in terms of performance, price, and ease of use. It’s the only ink I will use in my printer from now on. If you’re looking for a high-quality sublimation ink that’s both affordable and reliable, Hippo is an excellent choice. It delivers bright, beautiful transfers and maintains smooth operation without any of the typical issues associated with other brands. Highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 26, 2024
★★★★★ 5
Amazing quality and quantity!
The ink was so easy to refill onto the ecotank! The colors come out so bright and viivid!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 5
Great for Sublimation!
I’m a bit new to sublimation and was worried about having dull colors, but this ink is doing wonders! The quality is great, I can adjust the amount on the printer and get the exact, rich, vibrant colors I want. (I found some recommended settings for brightness, contrast, etc… and then tweak the cyan, magenta, and yellow to the desired amount.)
I definitely recommend getting this ink! It’s so easy to refill the printer (I have an Eco tank 15000). The cost is not bad at all. I’ve only washed some of the items one time and so far the ink has remained unchanged. Seems like a winner to me!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2025
★★★★★ 5
Vibrant colors, great traction on fabric, and easy cleanup
This sublimation ink has been a great find. The colors are vibrant and transfer beautifully to fabrics, mugs, and phone cases. The traction on the material is excellent—designs don’t smudge or fade easily after pressing.
I also appreciate how clean it is to work with. Refilling my Epson EcoTank printer was simple, and there were no messy drips or stains. Cleanup of tools and surfaces was quick with just a damp cloth.
For beginners or experienced crafters, this ink delivers consistent, professional-looking results every time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 22, 2025
★★★★★ 5
Amazing product!
Works perfect and bright colors, I haven't had any issues with it clogging no leakage has lasted more than expected.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026