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The ARP 2307305 Pro Series Torque Converter Bolt Kit is a vehicle-specific, high-performance fastener set designed for GM 4L60 and 4L80 transmissions. Featuring M10x1.5 metric fine threads, chromoly alloy steel construction, and a corrosion-resistant black oxide finish, this set of six bolts ensures a secure, durable connection for your torque converter. Engineered for professional-grade strength and reliability, it’s the go-to choice for automotive enthusiasts seeking flawless fitment and long-term durability.

| ASIN | B000O3RSK8 |
| Best Sellers Rank | #79,981 in Automotive ( See Top 100 in Automotive ) #3 in Car Torque Converters |
| Brand | ARP |
| Color | black |
| Colour | black |
| Compatible Groove Diameter | 1E+1 Millimeters |
| Customer Reviews | 4.9 out of 5 stars 268 Reviews |
| Drive System | Internal Combustion Engine |
| Exterior Finish | Black Oxide |
| Exterior finish | Black Oxide |
| Fastener Size | 10 millimeters |
| Fastener Type | Elevator bolt" gold "Flange bolt |
| Finish Types | Matte Black |
| Global Trade Identification Number | 00672036029883 |
| Grade Rating | Ungraded |
| Head Type | Hex |
| Head style | Flat |
| Item Diameter | 10 Millimeters |
| Item Dimensions | 15 x 10 x 5 centimeters |
| Item Hardness | Grade A |
| Manufacturer | ARP |
| Manufacturer Grade | High-end |
| Manufacturer grade | High-end |
| Material | chrome moly steel |
| Material Type | chrome moly steel |
| Metal Type | Alloy Steel |
| Model | 2307305 |
| Number Of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 6 |
| Outside Diameter | 10 Millimeters |
| Part Number | 2307305 |
| Screw Head Style | Flat |
| Set Name | Set of 6 |
| Set Screw Thread Type | Metric Fine |
| Size Name | 10 millimeters |
| Thread Class | 1A |
| Thread Coverage | Fully Threaded |
| Thread Size | M10x1.5 |
| Thread Style | Right Hand |
| Thread Type | UNF |
| Thread size | M10x1.5 |
| UPC | 672036029883 |
| Unit Count | 6 Count |
A**R
Arp.
ARP fasteners are great!
D**R
Great
Perfect for 4L80e!
B**R
Perfect fit for lb7 duramax
Swapped in these ARP flywheel studs on my LB7 Duramax and couldn’t be happier. The factory hardware just doesn’t inspire confidence when you’re putting real power down — but these studs are rock solid. Install was straightforward, the fitment was perfect, and the quality is exactly what you expect from ARP. The extra clamping force gives you peace of mind knowing the flywheel isn’t going anywhere, no matter how hard you push the truck. If you’re building or freshening up your Duramax, don’t cut corners — these are a must-have upgrade.
B**E
Works
Works
D**.
No issues
No issues, they are holding well in normal usage conditions.
Trustpilot
2 weeks ago
5 days ago