6T40 Gen 2 Input Drum 24263527

The 6T40 Gen 2 Input Drum 24263527 is a hard transmission component designed for second-generation GM 6-speed automatic transmission repair and rebuilding. This drum is commonly identified as the 4-5-6 and 3-5-Reverse clutch drum and is used in selected 6T40 and 6T45 applications. The Gen 2 design is different from earlier versions, so correct identification is important before installation.

Inside the 6T40 transmission family, the clutch drum carries and supports clutch components that are applied during specific gear ranges. It must maintain correct mechanical alignment and hydraulic sealing while rotating under load. Wear, cracking, spline damage, sealing-surface wear or distortion can affect clutch operation and may contribute to transmission performance problems.

This product is intended for professional transmission rebuilders, automatic gearbox repair shops, parts distributors and wholesalers. Before ordering, customers should compare the original drum, transmission generation, clutch configuration and reference number to make sure the replacement part matches the unit being repaired.

Gen 2 4-5-6 and 3-5-Reverse Clutch Drum

The second-generation 6T40/6T45 drum is commonly cataloged as a 4-5-6 and 3-5-Reverse clutch drum. It works with the clutch packs used to establish several forward gear ranges and reverse-related functions within the transmission. Current parts listings identify 24263527 as a Gen 2 drum for 6T40 and 6T45 applications.

Because the drum operates as part of the rotating clutch assembly, dimensional accuracy is important. The drum must correctly support the clutch pack, sealing rings and related internal components while maintaining proper oil pressure inside the clutch circuit.

During overhaul, technicians may inspect the drum for:

• Cracks around high-stress areas
• Worn splines
• Damaged sealing surfaces
• Excessive wear on clutch contact areas
• Distortion or physical damage
• Evidence of hydraulic pressure loss

If the original drum is damaged, replacing it with the correct generation component can help restore the mechanical and hydraulic integrity of the clutch assembly.

24263527 6T40 Input Drum Reference

The reference number 24263527 is commonly listed for the second-generation 6T40/6T45 4-5-6 and 3-5-Reverse clutch drum.

This number should not be confused with earlier or different drum references such as 24253300, which also appears in the 6T40/6T45 transmission family. Different generations can use different drum designs and internal configurations.

For correct matching, customers should provide:

• Transmission model
• Transmission production year if known
• Original drum photos
• Original reference number
• Clutch configuration
• Vehicle information

We recommend comparing the original part before ordering instead of selecting the drum only according to vehicle model.

6T40 6T45 Transmission Repair Application

The GM 6T40 and 6T45 are transverse 6-speed automatic transmissions. The 6T45 uses heavier-duty components than the 6T40 for higher torque capacity, while both belong to the same GM 6T transmission family.

The 6T40 Gen 2 Input Drum is intended for professional transmission rebuilding where the original clutch drum has been confirmed as worn or damaged.

During repair, technicians should also inspect related clutch and hydraulic components, including friction plates, steel plates, pistons, sealing rings, bushings and transmission fluid passages. A damaged clutch drum may not be the only source of a shifting or pressure-related problem, so complete diagnosis is recommended.

Professional installation, correct clutch clearance and proper transmission assembly procedures are important after replacement.

Related 6T40 Transmission Parts

We supply a wide range of automatic transmission repair components for 6T40, 6T45 and other gearbox models, including:

• Transmission overhaul kits
• Friction plate kits
• Steel plate kits
• Pistons and seals
• Valve body components
• Solenoid assemblies
• Transmission filters
• Other transmission hard parts

Customers rebuilding complete 6T40 or 6T45 transmissions can send a parts list, original photos or required quantities for product matching. Mixed transmission parts orders are also available for distributors and repair businesses.

6T40 Gen 2 Input Drum Wholesale Supply

We supply automatic transmission hard parts to professional workshops, rebuilders, distributors and wholesalers worldwide.

For 6T40 Gen 2 Input Drum inquiries, we can provide current product photos, packing information, availability and wholesale quotations.

If you are sourcing multiple 6T40 transmission components, send us the transmission model and purchasing list. Our team can assist with matching related repair parts and preparing a quotation.

Contact Us for 6T40 6T45 Parts

If you are looking for a 6T40 Gen 2 Input Drum 24263527 or other GM automatic transmission repair components, contact us with your requirements.

Providing the original drum photo and reference number can help us confirm the correct version before shipment.