--- title: "trailer shackle kit — Niche Verdict: Skip it (47/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/trailer-shackle-kit" last_updated: "2026-07-10T03:34:16.493Z" locale: en meta: description: "a small market ($42K/yr) — trailer shackle kit doesn't clear our bar today." "og:description": "a small market ($42K/yr) — trailer shackle kit doesn't clear our bar today." "og:title": "trailer shackle kit — Niche Verdict: Skip it (47/100) | Amazon United States - Flapen" --- Back to Flapen home # **trailer shackle kit** **Skip it****47/100 ** a small market ($42K/yr) — trailer shackle kit doesn't clear our bar today. **Market/yr** **$42K** **Growth (1y)** **+197.5%** **Products** **21** **Brands** **14** was 21 a year ago **Sellers** **22** **Price range** **$15.61–$96.09** **Returns** **2.6%** **Rating** **4.5★** **Skip it** Scored 47/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **2** ×0.30 Growth **76** ×0.30 Competition **56** ×0.20 Quality gap **44** ×0.10 Returns **80** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +197.5% year over year. 1K540.5Spike '24Spike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND Peak months: Aug · busiest ÷ quietest = 2.2× ## **Competition** - SPARKWHIZ23% - Lonffery16% - Racewill16% - iBroPrat8% - Siapupy7% - LLANNDER6% - Other (8 brands)24% The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them. 14 brands and 22 sellers compete here. **Brands** **14 **▼falling was 21 a year ago **Sellers** **22** **Top 5 brand share** **70%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![SPARKWHIZ Trailer Shackle Kit Tandem Trailer Axle Shackle Kit for Double Eye Springs 256L Shackle Straps Fits 3.5K to 6K Axles (Up to 12 000 lbs GVWR)](https://m.media-amazon.com/images/I/51qP40ajVsL.jpg) [**SPARKWHIZ Trailer Shackle Kit Tandem Trailer Axle Shackle Kit for Double Eye Springs 256L Shackle Straps Fits 3.5K to 6K Axles (Up to 12 000 lbs GVWR)**](https://www.amazon.com/dp/B0BJJLRLC5) SPARKWHIZ$43.924.6★27923%▼falling 2 ![Lonffery Trailer Alex Shackle Kit 312L Shackle Strap Fit for 3500lb-7200lb Double Eye Spring](https://m.media-amazon.com/images/I/5176ldnpA2L.jpg) [**Lonffery Trailer Alex Shackle Kit 312L Shackle Strap Fit for 3500lb-7200lb Double Eye Spring**](https://www.amazon.com/dp/B0C3VS5GM3) Lonffery$22.924.5★6610%▲rising 3 ![Trailer Shackle Kit Heavy-Duty Trailer Leaf Spring Kit for Double Eye Springs (3.5K-7.2K Axles) 312L Shackle Straps with Installation Hardware and Anti-Rust Coating Durable Trailer Repair Parts](https://m.media-amazon.com/images/I/4117Ie0eogL.jpg) [**Trailer Shackle Kit Heavy-Duty Trailer Leaf Spring Kit for Double Eye Springs (3.5K-7.2K Axles) 312L Shackle Straps with Installation Hardware and Anti-Rust Coating Durable Trailer Repair Parts**](https://www.amazon.com/dp/B0FK5D144D) Siapupy$34.744.6★537%▲rising 4 ![Racewill 2 Packs Tandem Axle Trailer Shackles Kit: Trailer Shackles with Trailer Shackle Bolts 2-5/8 Trailer Shackle Straps (262) Used On Dual-Axle Systems And All Triple-Axle Systems](https://m.media-amazon.com/images/I/51sC2MoQ7LL.jpg) [**Racewill 2 Packs Tandem Axle Trailer Shackles Kit: Trailer Shackles with Trailer Shackle Bolts 2-5/8 Trailer Shackle Straps (262) Used On Dual-Axle Systems And All Triple-Axle Systems**](https://www.amazon.com/dp/B0C6V5CL4P) Racewill$38.214.4★3006%▼falling 5 ![Lonffery 2 Packs 7-3/4 Trailer Alex Equalizer with 256L Shackle Straps Kit Fit for 3500lb-5200lb Axle Double Eye Spring](https://m.media-amazon.com/images/I/5199ZctQ4WL.jpg) [**Lonffery 2 Packs 7-3/4 Trailer Alex Equalizer with 256L Shackle Straps Kit Fit for 3500lb-5200lb Axle Double Eye Spring**](https://www.amazon.com/dp/B0C3VQWFR7) Lonffery$43.624.8★696%▲rising 6 ![LLANNDER Heavy Duty Greaseable Tandem Trailer Axle Shackle Kit 3.125 Shackles Tandem Axle for Double Eye Springs](https://m.media-amazon.com/images/I/41RowPfv+fL.jpg) [**LLANNDER Heavy Duty Greaseable Tandem Trailer Axle Shackle Kit 3.125 Shackles Tandem Axle for Double Eye Springs**](https://www.amazon.com/dp/B0CLTZGMQB) LLANNDER$96.094.4★726%▼falling 7 ![FITHOIST Trailer Shackle Kit Heavy Duty Tandem Trailer Axle Shackle Kit Dual Axle Trailer Leaf Spring Shackle Kit for Double Eye Springs (3500lbs-5200lbs Axles)](https://m.media-amazon.com/images/I/51Yt2lrHNnL.jpg) [**FITHOIST Trailer Shackle Kit Heavy Duty Tandem Trailer Axle Shackle Kit Dual Axle Trailer Leaf Spring Shackle Kit for Double Eye Springs (3500lbs-5200lbs Axles)**](https://www.amazon.com/dp/B0DGG8CLVX) FITHOIST$30.144.0★265%▲rising 8 ![iBroPrat Trailer Axle Shackle Kit Tandem Axle Trailer Kit for Double Eye Leaf Spring 3 500 lbs-7 200 lbs Axles (7 Nuts and 7 Bolts)](https://m.media-amazon.com/images/I/414IE1lkPQL.jpg) [**iBroPrat Trailer Axle Shackle Kit Tandem Axle Trailer Kit for Double Eye Leaf Spring 3 500 lbs-7 200 lbs Axles (7 Nuts and 7 Bolts)**](https://www.amazon.com/dp/B0CH85P91K) iBroPrat$23.184.6★1025%▼falling 9 ![OZISENS Trailer Axle Equalizer 312L Shackle Kit for Double Eye Leaf Springs 3500 lbs to 5200 lbs Axles (14Pcs Nylon Bushings 14Pcs Bolts 14Pcs Nuts) Tandem Axle Trailer Shackles Equalizers Kit](https://m.media-amazon.com/images/I/51AQ60jyOqL.jpg) [**OZISENS Trailer Axle Equalizer 312L Shackle Kit for Double Eye Leaf Springs 3500 lbs to 5200 lbs Axles (14Pcs Nylon Bushings 14Pcs Bolts 14Pcs Nuts) Tandem Axle Trailer Shackles Equalizers Kit**](https://www.amazon.com/dp/B0FHW5WF2B) OZISENS$45.784.8★364%▲rising 10 ![Azuvis Trailer Shackle Kit Heavy Duty Tandem Trailer Axle Shackle Kit 312L Shackle Straps Fits 3.5K to 6K Axles (Up to 12 000 lbs GVWR)](https://m.media-amazon.com/images/I/41hhbCbhopL.jpg) [**Azuvis Trailer Shackle Kit Heavy Duty Tandem Trailer Axle Shackle Kit 312L Shackle Straps Fits 3.5K to 6K Axles (Up to 12 000 lbs GVWR)**](https://www.amazon.com/dp/B0CGNPVH71) Azuvis$45.234.6★564%▲rising 11 ![Racewill Trailer Shackles Kit (2-1/4 Trailer Shackle Straps 225) Used On Dual-Axle Systems Tandem Axle Trailer Kit for Double Eye Spring (3 500 lbs-7 200 lbs Axles)](https://m.media-amazon.com/images/I/41FQpd42TxL.jpg) [**Racewill Trailer Shackles Kit (2-1/4 Trailer Shackle Straps 225) Used On Dual-Axle Systems Tandem Axle Trailer Kit for Double Eye Spring (3 500 lbs-7 200 lbs Axles)**](https://www.amazon.com/dp/B0C6V5HTCV) Racewill$23.434.4★3003%▲rising 12 ![Racewill Tandem Axle Trailer Shackles Kit: 2 Packs Trailer Shackles with Trailer Shackle Bolts 2-1/4 Trailer Shackle Straps (225) Used On Dual-Axle Systems](https://m.media-amazon.com/images/I/51Hs2DWAONL.jpg) [**Racewill Tandem Axle Trailer Shackles Kit: 2 Packs Trailer Shackles with Trailer Shackle Bolts 2-1/4 Trailer Shackle Straps (225) Used On Dual-Axle Systems**](https://www.amazon.com/dp/B0C6V6D5M4) Racewill$37.384.4★3003%▲rising 13 ![iBroPrat Trailer Shackle Kit Single Trailer Axle Shackle Kit for Double Eye Spring 3 500 lbs-7 200 lbs 2 Packs (2 EQ-E1 Equalizer 8 PCS 2-9/16 Long Shackle Straps 14Pcs Nuts and 14Pcs Bolts)](https://m.media-amazon.com/images/I/51AXauxylOL.jpg) [**iBroPrat Trailer Shackle Kit Single Trailer Axle Shackle Kit for Double Eye Spring 3 500 lbs-7 200 lbs 2 Packs (2 EQ-E1 Equalizer 8 PCS 2-9/16 Long Shackle Straps 14Pcs Nuts and 14Pcs Bolts)**](https://www.amazon.com/dp/B0D7CR1VDS) iBroPrat$49.044.7★333%▼falling 14 ![DIMEANI Heavy Duty Trailer Shackle Kit fit for CRE3000 Stock Equaflex 2.25 Shackles Trailer Shackle Links for Leaf Springs Tandem Axle Truck/Trailers Shackle Upgrade Kit UO12-016](https://m.media-amazon.com/images/I/51zLPxlA6UL.jpg) [**DIMEANI Heavy Duty Trailer Shackle Kit fit for CRE3000 Stock Equaflex 2.25 Shackles Trailer Shackle Links for Leaf Springs Tandem Axle Truck/Trailers Shackle Upgrade Kit UO12-016**](https://www.amazon.com/dp/B0CHYJDT7Y) Dimeani$55.464.4★853%▼falling 15 ![SENKEYFE Trailer Shackle Kit Heavy Duty Tandem Trailer Axle Shackle Kit Trailer Leaf Spring Kit for Double Eye Springs (3500lbs-5200lbs Axles)](https://m.media-amazon.com/images/I/41bDufCpGBL.jpg) [**SENKEYFE Trailer Shackle Kit Heavy Duty Tandem Trailer Axle Shackle Kit Trailer Leaf Spring Kit for Double Eye Springs (3500lbs-5200lbs Axles)**](https://www.amazon.com/dp/B0DGG8Y9V8) SENKEYFE$32.753.9★132%—flat **~~Showing 15 of 21 — show all ~~** ## **Product shelf** All 21 tracked products in this niche. Top sellersNewestTrending [![SPARKWHIZ Trailer Shackle Kit Tandem Trailer Axle Shackle Kit for Double Eye Springs 256L Shackle Straps Fits 3.5K to 6K Axles (Up to 12 000 lbs GVWR)](https://m.media-amazon.com/images/I/51qP40ajVsL.jpg)**SPARKWHIZ Trailer Shackle Kit Tandem Trailer Axle Shackle Kit for Double Eye Springs 256L Shackle Straps Fits 3.5K to 6K Axles (Up to 12 000 lbs GVWR)** SPARKWHIZ**$43.92**4.6★279 reviews](https://www.amazon.com/dp/B0BJJLRLC5) [![Lonffery Trailer Alex Shackle Kit 312L Shackle Strap Fit for 3500lb-7200lb Double Eye Spring](https://m.media-amazon.com/images/I/5176ldnpA2L.jpg)**Lonffery Trailer Alex Shackle Kit 312L Shackle Strap Fit for 3500lb-7200lb Double Eye Spring** Lonffery**$22.92**4.5★66 reviews](https://www.amazon.com/dp/B0C3VS5GM3) [![Trailer Shackle Kit Heavy-Duty Trailer Leaf Spring Kit for Double Eye Springs (3.5K-7.2K Axles) 312L Shackle Straps with Installation Hardware and Anti-Rust Coating Durable Trailer Repair Parts](https://m.media-amazon.com/images/I/4117Ie0eogL.jpg)**Trailer Shackle Kit Heavy-Duty Trailer Leaf Spring Kit for Double Eye Springs (3.5K-7.2K Axles) 312L Shackle Straps with Installation Hardware and Anti-Rust Coating Durable Trailer Repair Parts** Siapupy**$34.74**4.6★53 reviews](https://www.amazon.com/dp/B0FK5D144D) [![Racewill 2 Packs Tandem Axle Trailer Shackles Kit: Trailer Shackles with Trailer Shackle Bolts 2-5/8 Trailer Shackle Straps (262) Used On Dual-Axle Systems And All Triple-Axle Systems](https://m.media-amazon.com/images/I/51sC2MoQ7LL.jpg)**Racewill 2 Packs Tandem Axle Trailer Shackles Kit: Trailer Shackles with Trailer Shackle Bolts 2-5/8 Trailer Shackle Straps (262) Used On Dual-Axle Systems And All Triple-Axle Systems** Racewill**$38.21**4.4★300 reviews](https://www.amazon.com/dp/B0C6V5CL4P) [![Lonffery 2 Packs 7-3/4 Trailer Alex Equalizer with 256L Shackle Straps Kit Fit for 3500lb-5200lb Axle Double Eye Spring](https://m.media-amazon.com/images/I/5199ZctQ4WL.jpg)**Lonffery 2 Packs 7-3/4 Trailer Alex Equalizer with 256L Shackle Straps Kit Fit for 3500lb-5200lb Axle Double Eye Spring** Lonffery**$43.62**4.8★69 reviews](https://www.amazon.com/dp/B0C3VQWFR7) [![LLANNDER Heavy Duty Greaseable Tandem Trailer Axle Shackle Kit 3.125 Shackles Tandem Axle for Double Eye Springs](https://m.media-amazon.com/images/I/41RowPfv+fL.jpg)**LLANNDER Heavy Duty Greaseable Tandem Trailer Axle Shackle Kit 3.125 Shackles Tandem Axle for Double Eye Springs** LLANNDER**$96.09**4.4★72 reviews](https://www.amazon.com/dp/B0CLTZGMQB) [![FITHOIST Trailer Shackle Kit Heavy Duty Tandem Trailer Axle Shackle Kit Dual Axle Trailer Leaf Spring Shackle Kit for Double Eye Springs (3500lbs-5200lbs Axles)](https://m.media-amazon.com/images/I/51Yt2lrHNnL.jpg)**FITHOIST Trailer Shackle Kit Heavy Duty Tandem Trailer Axle Shackle Kit Dual Axle Trailer Leaf Spring Shackle Kit for Double Eye Springs (3500lbs-5200lbs Axles)** FITHOIST**$30.14**4.0★26 reviews](https://www.amazon.com/dp/B0DGG8CLVX) [![iBroPrat Trailer Axle Shackle Kit Tandem Axle Trailer Kit for Double Eye Leaf Spring 3 500 lbs-7 200 lbs Axles (7 Nuts and 7 Bolts)](https://m.media-amazon.com/images/I/414IE1lkPQL.jpg)**iBroPrat Trailer Axle Shackle Kit Tandem Axle Trailer Kit for Double Eye Leaf Spring 3 500 lbs-7 200 lbs Axles (7 Nuts and 7 Bolts)** iBroPrat**$23.18**4.6★102 reviews](https://www.amazon.com/dp/B0CH85P91K) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Quality-Overall**32% *“Good quality replacement parts”* **Size-Overall**26% *“Fit perfect”* **Advertised Vs Actual Product**9% *“As advertised”* **Value For Money**7% *“Worth the price”* **Assembly/Installation**6% *“Complete setup”* **Efficiency**4% *“Works great”* **Maintenance And Repair**2% *“Good replacement hardware”* **Strength**2% *“Very well built”* **Durability**2% *“they have held up absolutely great”* **Weight Heavy**2% *“Great heavy duty items”* ### **What buyers complain about ** **Quality-Overall**26% *“the quality isn't there for the price”* **Size-Overall**14% *“so the pressed bolt isnt quite as snug as I would like”* **Wheel Quality**6% *“These longer shackles eliminate tandem axle lock up. rear wheel locked up”* **Instructions/User Manual/Troubleshooting**6% *“Worked like its supposed to no instructions”* **Mounting**6% *“Dont install nuts with an impact gun”* **Assembly/Installation**6% *“Didn't realize till was already half way thru installation couldn't return”* **Rusts/Corrodes**3% *“not very rust resistant”* **Shape/Style**3% *“was the irregular form of the leaf springs themselves”* **Metal Quality**3% *“they don't look like bronze”* **Noise Level**2% *“After noticing a lot of rattling noise coming out of my trailer I realized my shackles”* #### **Top return reasons**- Size-Overall58% - Advertised Vs Actual Product8% - Defective Material/Parts7% - Compatibility-Overall6% - Quality-Overall3% - Assembly/Installation3% - Measurement/Reading Accuracy2% - Width2% - Strap/String Quality2% - Mounting2%