1985 GMC Transmission & Drivetrain

Ring and Pinion Gears, 4.11:1 Ratio, 30-spline, Standard Rotation, GM 8.5 in., GM 8.6 in., Set

Part Number: MGR-GM10-411A

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Torque Converter, Holeshot, 2,300-2,500 rpm Stall Range, Chevy, 4L60E/700R4, Each

Part Number: BMM-70419

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Torque Converter, Holeshot, 2,900-3,200 rpm Stall Range, GM, THM350/THM400, Each

Part Number: BMM-20483

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Differential, Eaton Detroit Truetrac, 33-Spline, GM, 14-Bolt, 9.5 in., Each

Part Number: ETN-914A538

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Automatic Transmission Kickdown Cable, Hi-Tech, Braided Stainless Steel, Natural Aluminum Fittings, GM, 700R4, Kit

Part Number: LOK-KD-2700HT

4.85 out of 5 stars ( 34 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Transmission Dipstick, Braided Stainless Steel Tube, Flexible, Aluminum Handle, Firewall Mount, TH350, TH400, Each

Part Number: LOK-TD-3350400FM

4.67 out of 5 stars ( 89 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Differential, Posi Performance, Limited Slip, 28-Spline, GM, 8.5 in., 3 Series, Each

Part Number: ETN-19557-010

4.73 out of 5 stars ( 15 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Ring and Pinion Installation Kit, Master Kit, GM 8.5 in., Kit

Part Number: MGR-R10RMK

4.29 out of 5 stars ( 17 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Differential, Eaton Detroit Truetrac, 30-Spline, GM, 10.5 in. Ring Gear, 4.10 and Lower Ratios, Each

Part Number: ETN-915A545

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Automatic Transmission Kickdown Cable, Hi-Tech, Natural Braided Stainless Steel, Natural Aluminum Fittings, GM, TH350, Kit

Part Number: LOK-KD-2350HT

4.89 out of 5 stars ( 38 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-4900411

4.47 out of 5 stars ( 19 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Dura Grip Positraction Carrier, Traction-Loc, GM 7.5/7.6 in., 26 Spline, 3.23 Up Ratio, Each

Part Number: YGA-26017

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Ring and Pinion Gears, GM 8.875 in. (12-bolt), Truck, 3.73:1 Ratio, 30-spline, Standard, Designed for Carrier Cases with A 3.73 and Up Gear Ratio, Kit

Part Number: YGA-10627

4.0 out of 5 stars ( 1 )

• Free Shipping

Clutch Kit, Organic, 1-1/8 in. Shaft, 10-Spline, 12 in. Diameter Disc, GM, Chevy, Kit

Part Number: SUM-700810

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Gear, Ring and Pinion, 3.73:1 Ratio, 1.625 in. Pinion, 30-Spline, GM 8.5/8.6 in., Set

Part Number: YGA-24158

4.1 out of 5 stars ( 10 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Torque Converter, Holeshot, 2,300-2,500 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20412

3.8 out of 5 stars ( 15 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Automatic Transmission Rebuild Kit, Kolene Steels, GM, 700R4, Lockup, 30-Spline, Kit

Part Number: SUM-705023

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Flywheels, OE Replacement, Cast Iron, 168-tooth, 30 lbs., External Engine Balance, Chevy, Big Block, Each

Part Number: SUM-700096

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, 3 Series, Set

Part Number: RMG-6901651

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 10.5 in., 14-Bolt, Fits 4.10:1 and Numerically Lower Carrier, Set

Part Number: MGR-GM10-5-410

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Torque Converter, Holeshot, 1,800-2,200 rpm Stall Range, Chevy, THM350/THM400, Each

Part Number: BMM-20416

4.42 out of 5 stars ( 19 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Flywheel, Billet Steel, 168-Tooth, 31.2 lb., Internal Engine Balance, SFI 1.1, Chevy, Big Block, Small Block, Each

Part Number: CTF-700120

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Automatic Transmission Rebuild Kit, GM, 700R4, Lockup, 30-Spline, Kit

Part Number: SUM-705003

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Gear, Ring and Pinion, EXCel, 3.73:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: RMG-GM85373

4.17 out of 5 stars ( 12 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping

Transmission Pan, Stock, Aluminum, EDP Coated Black, GM 700R4, 4L60, 4L60E, Each

Part Number: MRG-9797BMRG

3.93 out of 5 stars ( 14 )

Estimated Ship Date: Monday 3/2/2026 if shipped by air

• Free Shipping