Whiteline · New
Whiteline 08-14 Subaru WRX Hatch / 08-09 Subaru STI Rear Diff Mount Inserts Positive Power Kit
MPN KDT903 · Store SKU whlKDT903
Supplier stock checked 11/7/2026, 11:52:30 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Whiteline's differential insert bushings work within the voids of the original factory bushing to ensure pinion angles are maintained while delivering an improved gear shift resulting in reduced initial torque loss and greater power transfer to the wheels. Whiteline Differential - mount in cradle bushing. Differential Mount - Rear Bushing Kit
Manufacturer fitment & guides
Check KDT903 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y