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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
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Description
bolt gears Yukon Gear High Performance Ring & Pinion Set, GM 10.5 in., 14 Bolt, Thick, 4.88 RatioBuilt for strength, precision, and quiet performance, the Yukon Gear GM 10. 5" 14 Bolt Ring & Pinion sets are engineered specifically for the legendary GM full float 14 bolt rear axle. Known for its durability and serviceability, the 10. 5" 14 bolt is a staple in heavy duty trucks, vans, towing rigs, and off road builds. Yukons high performance gear sets are precision manufactured and lapped to deliver smooth engagement, reduced noise, and cooler
Built for strength, precision, and quiet performance, the Yukon Gear GM 10.5" 14 Bolt Ring & Pinion sets are engineered specifically for the legendary GM full-float 14-bolt rear axle. Known for its durability and serviceability, the 10.5" 14-bolt is a staple in heavy-duty trucks, vans, towing rigs, and off-road builds.
Yukon’s high-performance gear sets are precision-manufactured and lapped to deliver smooth engagement, reduced noise, and cooler operation under load. Designed to handle extreme torque and stress, these gears are ideal for off-road abuse, heavy hauling, and long-term reliability.
Each gear set is engineered for exact fitment and consistent contact patterns, ensuring proper setup and dependable performance mile after mile.
Includes:
- Yukon Gear Ring & Pinion Set (ratio selected)
- Backed by a one-year manufacturer warranty
Specifications
- Axle Compatibility: GM 10.5" 14 Bolt Full-Float Rear Axle
- Pinion Spline Count: 30 Spline
- Ring Gear Bolt Count: 12 Bolts
- Gear Type: Precision-lapped Ring & Pinion
- Design: Full-float axle compatible
- Warranty: 1-Year Manufacturer Warranty
Fitment
- GM 10.5" Full-Float 14-Bolt Rear Axles
- Common in GM trucks and vans
- Designed for off-road, towing, and heavy-duty applications
Available Gear Ratios:
- 3.73 (Thin)
- 4.11 (Thin)
- 4.56 (Thin)
- 4.56 (Thick)
- 4.88 (Thick)
- 5.13 (Thick)
- 5.38 (Thick)
| Year | Make | Model | Drive | Axle |
|---|---|---|---|---|
| 1973–1987 | Chevrolet | C20 / C30 | RWD | GM 10.5" 14 Bolt FF |
| 1973–1991 | Chevrolet | K20 / K30 | 4WD | GM 10.5" 14 Bolt FF |
| 1973–1991 | GMC | C2500 / C3500 | RWD | GM 10.5" 14 Bolt FF |
| 1973–1991 | GMC | K2500 / K3500 | 4WD | GM 10.5" 14 Bolt FF |
| 1973–2000 | Chevrolet | P-Series Vans | RWD | GM 10.5" 14 Bolt FF |
| 1973–2000 | GMC | P-Series Vans | RWD | GM 10.5" 14 Bolt FF |
Tech Insight
The GM 10.5" full-float 14-bolt axle is renowned for its strength because the axle shafts only transmit torque — they do not support vehicle weight. The load is carried by the spindle and dual wheel bearings, making this axle ideal for extreme use.
Thick gear options allow lower ratios to be installed on 4.10-and-down carriers without changing the carrier or locker, making them a popular upgrade for high-torque builds.
Important Note:
Thick gears are designed for 4.10-and-down carriers/lockers. Always verify axle type, carrier break, and build specifications before ordering.
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
4.1 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Poli Glow used on bottom portion of the picture
Just put it on 21 foot RV, was impressed with the shine. Key is to make sure the applicator is moist. I periodically dampen with water. Realizing it wasn't going to revive the stickers. Question is
How long it will last?
What will it look like after it rains?
Pictures attached, bottom portion was done with poli glow on June 7,2026 and I have just under a half of bottle left. Maybe I will update once it rains or how long the shine last.
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Reviewed in the United States on June 8, 2026
★★★★★ 5
It works miracles
I was amazed by the incredible difference it made on my RV. Check the pictures. The difference is of such a magnitude that we were amazed by the final results. Brought my rig back to life
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Reviewed in the United States on December 1, 2025
★★★★★ 5
40 Years Young and Ready to Bring My RV Back to Life!
As a happy 40-year-old guy who takes a lot of pride in his RV, I’ve been on a mission to remove all the oxidation and restore that clean, glossy finish. After doing my homework, I decided to try Poli Glow Boat & RV Restoration, and I couldn’t be more excited about the results so far. I honestly can’t wait to see what it looks like once I’m completely finished.
The quality of this product really stands out. It doesn’t feel like some quick temporary fix — it’s clearly made to properly restore fiberglass surfaces. The application use is straightforward, especially if you follow the prep steps carefully. Once I got into the rhythm of it, the process felt manageable and even kind of satisfying.
What impressed me most was the smoothness it brought back to the surface. Areas that were dull and chalky from oxidation are starting to look deep and refreshed again. It’s doing a solid job with light scratch removal too, especially the small surface marks that naturally build up over time.
I also appreciate the added layer of durability it promises. After putting in the work, I want something that’s going to last and protect the finish moving forward. And for anyone dealing with minor staining or corrosion spots, it definitely helps improve the overall look, contributing to better rust removal results around metal fixtures and trim.
If you’re like me and want your RV looking proud and road-ready again, this feels like a serious step in the right direction. I’m genuinely excited to see the full transformation once I finish the entire exterior. Definitely worth the effort.
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Reviewed in the United States on February 19, 2026
★★★★★ 5
Great product, great support, looks better than new!
I couldn't possibly be more pleased with how my RV looks after Poli-Glow! I have a 2018 Rockwood 21' RV trailer that had not been treated before, so there was oxidation / fading from being in the Arizona sun - it just looked dull (the color is mostly beige).
I am not usually a DIY'er. I researched options online and really appreciated the educational videos on Poli-Glow so I went with that. I don't have buffer machine or anything like that so I liked the idea of being able to do everything by hand. (Even if I had a buffing machine, I think that would have been more tiring having to climb a ladder with it and holding it over my head while applying a traditional wax - plus having to change between it and buffing cloths before wax would dry). Plus I like that this is a longer lasting treatment than a traditional wax.
You will need some time - I spread my project over 4 days (day 1 - cleaning the RV and separate UV protection of the roof and awning; day 2 - Poli-Prep the whole RV; day 3 and day 4 Poli-Glow half the RV day 3 and finish day 4).
Doing the Poli-Prep was easy. I mixed it in a spray bottle. I hosed down the section of the RV I was getting ready to scrub, sprayed on the Poli-Prep, scrubbed the area with the scrub brush that came with the kit, then hosed the area down and let it air dry. I only used about a third of the bottle of Poli-Prep. After the Poli-Prep the RV looked better than it did before, but that's not where the real shine comes from.
I appled Poli-Glow to the RV surface, over the decals, plus all the black trim areas. The coats dried quickly so I didn't have any extra downtime between coats. When I finished a coat I walked about 30 feet to my working station in the shade, added more Poli-Glow to the mitt, and by the time I got back to the RV the previous coat was dry and ready for the next coat. Overall I worked a side of the RV from left to right; within a section I started on the bottom section up to almost as high as I could reach and used a ladder for the top half. The first coat get absorbed pretty thoroughly so the area looks only partially polished; by the 2nd - 3rd coat the shine really starts to show. Since I am in AZ, I applied the recommended 10 coats of Poli-Glow (10 coats to about a 5 to 6 foot section, then move the ladder to the next section). Overall I used 2 bottles of Poli-Glow with about a half inch left in the bottle. I did time my efforts both days to work on sections that weren't in the direct sun, making sure the area I would work on was cool or warm, not hot.
Support was SUPER-FANTASTIC! I sent questions via Amazon contact seller and received very fast responses. They also sent me an email link to other videos from a detailer, so by the time I started I was confident and ready. During the project I sent pictures and they provided fast feedback that I was in fact progressing very well - very encouraging and confidence boosting. Thank you Sean!
So yes, it took some time, but it was so worth it! It is shiny and beautiful and looks like new (actually better than new)! My neighbor has already asked me about it so he can do his RV. After I was done I took my victory lap - I sat in my driveway staring at it while sipping a beer, basking in the reflection of the sunset mirroring off the RV!
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Oxidized fiberglass RV looks new again!
WOW! I researched high and low for a product that would bring back the shine to our 10 year old travel trailer that has fiberglass panel siding. There were countless videos watched, numerous products tried without success and then I discovered PoliGlow Restoration Fiberglass Kit for boats and RVs. It came with the cleaner and pad to remove the oxidation and a bottle of Superior Fiberglass Restoration, Protection and Shine. This product is amazing. The condition on the exterior of our RV had become a bit embarrassing, but now it shines with the newest of them. The instructions are easy to follow, there are even videos of the process! It does require several coats of the Restoration and Shine product. The cost is extremely reasonable for the end result of the RV. The shine is amazing! Highly recommend this product. PS It was extremely easy to apply as I had my husband do it, he didn’t complain at all and was thrilled with the result!
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Reviewed in the United States on July 24, 2025
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