


⚙️ Master your Jeep’s front differential like a pro — don’t get left behind!
The USA Standard Gear Master Overhaul Kit (ZK D30-JK) is a complete, vehicle-specific front differential rebuild solution for Jeep JK Dana 30. Featuring premium Koyo bearings and races, all necessary hardware, and professional-grade installation accessories, this 3.13 kg machined kit ensures durable, reliable performance and a confident, precise rebuild experience.
| Manufacturer | USA Standard Gear | 
| Brand | USA Standard Gear | 
| Model | Master Overhaul Kit fits Jeep JK Dana 30 Front Differential | 
| Product Dimensions | 30.48 x 30.48 x 7.62 cm; 3.13 kg | 
| Item model number | ZK D30-JK | 
| Exterior | Machined | 
| Manufacturer Part Number | ZK D30-JK | 
| OEM Part Number | ZK F7.5 | 
| Position | Front | 
| Item Weight | 3.13 Kilograms | 
S**S
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Arrived squished.
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