Allison 1000 2000 P3 Planet No Parking Lugs 41T Sun Gear Duramax GMC Chevy Used

Allison 1000 2000 P3 Planet No Parking Lugs 41T Sun Gear Duramax GMC Chevy Used

Used OEM unit pulled from an inspected donor transmission, cleaned and visually inspected before listing. Photos show a representative unit of this exact part and variant — see the fitment and casting notes below to confirm your match.

• SKU: G-AL1000-PL-U-03
• Includes: P3 planet carrier loaded with 4x 31T pinions; no parking gear. P3 sun gear (41T), ring gear, retaining ring, and bearing NOT included (those belong to set ref 29539547).
• Warranty: 30-day return-or-replace after delivery
• Shipping: UPS Ground from our Tennessee warehouse, 2 business day handling

Part numbers: verify against your casting/tag — message us your VIN or transmission tag and we confirm the same business day.

Fits (engine/year matters — read carefully): P3 (rear) planet WITHOUT parking gear - per Transtar's Allison catalog the no-park P3 is the Allison 2000-series configuration (commercial/bus/motorhome chassis using a driveline park brake); park-equipped 1000/2400 pickups use the lug-type carrier instead. Spec: 4 pinions, 31 teeth each, 1 ID groove, mates with 41T P3 sun (wide ratio); WIT lists 2000-up. NOT for applications that need the internal PARK gear. Buyer must verify no-park configuration and count pinion/sun teeth - a 27T-pinion/49T-sun no-park version (WIT 116584AA) also exists.

Important: No-park carrier will NOT provide PARK in a pickup Allison 1000 - wrong-variant return risk is highest here, so the copy states it plainly. Two no-park pinion specs exist (27T/49T vs this 31T/41T); sun tooth count must match the transmission's ratio family (41/44/49/53T suns exist across the family). 29539547 is the full-set number, not the bare carrier.

Before you order: confirm your transmission code and casting/part numbers. Not sure? Message us through eBay with your VIN or transmission tag and we will confirm fitment the same business day. Rebuilder shops — ask about volume pricing. We stock transmission hard parts by family and can hold inventory for scheduled builds.