All of our QC rears come standard with every possible upgrade available!Our Winters IRS rears are the most advanced, unbeatable independent QC diff available on the market. This diff is the advantage you need on the track, allowing you to make gear changes in under 5 minutes. These diffs are built to handle well over 1500HP and suited for any high power application such as road racing, drag or drift. 10” Independent QC Diffs: HD Aluminium Spool or LSD options available Permanent Mold A356-T6 Aluminium Centre Section 35 spline with Forged 4340 steel 930 Porsche output flanges Forged 2014-T6 Side Bells Upgraded 300M heat treated lower shaft Forged 1350 series yoke installed Ground 9310 ring and pinion ARP ring Gear bolts & washers. 6 Bolt Zoo Performance billet gear cover with deep groove ball bearings and platinum blue anodized nuts Includes 1 x gear set 8501 with ratio 4.12/ 4.12 for FREE!If you require additional gears, please contact us for a ratio chart. Recommended Oil: High quality semi-synthetic 80-90 oil with Moly or any high quality full synthetic 75-90 gear oil.NEW Design Improvements:• Thicker and longer internal ribs that extend into the front snout and rear gear cavity • Larger fillets (i.e., thicker metal) at the bell mounting flanges for added torsional strength • Dual support ribs between the change gear cavity and the ring gear cavity • Side bell oil fill and breather ports for standard and invert-mounted diffs * Any warranty claims will be processed and assessed as per the manufacturers policy.
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