1998 GMC - Free Shipping on Orders Over $109 at Summit Racing

Mahle Original Cylinder Head Gaskets 5746

Head Gasket, Graphite, 4.100 in. Bore, 0.040 in. Thickness, Chevrolet, Each

Part Number: MAH-5746

3.67 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

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Flowmaster American Thunder Exhaust Systems 17224

Exhaust System, American Thunder, Cat-Back, Steel, Aluminized, Chevy, GMC, 5.7, 7.4L, Kit

Part Number: FLO-17224

4.13 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Moser Engineering Replacement C-Clip Axles for 1982-2004 S10, 1982-1990 S15, 1991-2004 SONOMA - A102807

Axles, Direct Fit, C-Clip, Rear, 1541H Steel, 28-Spline, GM, GMC, P/U, 7.5/7.562 in. Rear Differential, Pair

Part Number: MSR-A102807

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

Hedman Specialty and Engine Swap Headers 69526

Hedman Specialty and Engine Swap Headers 69526

Headers, Specialty and Engine Swap, Mid-Length, Steel, Silver Ceramic Coated, Chevy, GMC, Small Block, Pair

Part Number: HED-69526

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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JBA Performance Exhaust Evol Exhaust Systems 40-3001

Exhaust, Cat-Back, Stainless Steel, Natural, Chrome Stainless Tip, Chevy, GMC, C/K, 1500, 2500, 3500, 5.7L

Part Number: JBA-40-3001

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Feb 27, 2026 if ordered today

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Estimated Ship Date: Feb 27, 2026 if ordered today

Motive Gear Ring and Pinion Sets GM9.5-410 GM 9.5 in. 4.10 Gears

Gear, Ring and Pinion, 4.10:1 Ratio, GM, 9.5 in., 14-Bolt, Truck, Set

Part Number: MGR-GM9-5-410

3.4 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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SuspensionMAXX Super T Torsion Bar Tools SMX-2011MT

Installation Tool, Torsion Bar, Chevy, GMC, Each

Part Number: SPX-SMX2011MT

4.42 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

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Tonno Pro Lo-Roll Tonneau Covers LR-1005

Tonneau Cover, Lo-Roll, Soft Roll-up, Vinyl, Black, Chevy, GMC, 6.5 ft. Truck Bed Length, Each

Part Number: BGE-LR-1005

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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ACDelco Automatic Transmission Tailhousings 24241496

Automatic Transmission Tailhousings, 4L60E, OEM-style, Rear, with Seal, Aluminum, Natural, Each

Part Number: ADO-24241496

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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SCE Titan Copper Head Gaskets T136243

Head Gasket, Titan, Copper, 4.630 in. Bore, .043 in. Compressed Thickness, Chevrolet, Big Block MK IV, Each

Part Number: SCE-T136243

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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McGard Lug Nuts 64030

Lug Nuts, Conical Seat, 1/2 in. - 20 RH, Steel, Black Chrome, Set of 4

Part Number: MCG-64030

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Skyjacker Stainless Steel Braided Brake Hoses FBL88

Brake Lines, Braided Stainless Steel, Chevy, GMC, SUV, Pickup, Front, 4-6 in. Lift, Pair

Part Number: SJA-FBL88

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Dorman Harmonic Balancers 594-012

Harmonic Balancer, Internal Balance, Nodular Iron, Natural, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: RNB-594-012

4.55 out of 5 stars ( 22 )

Estimated Ship Date: Tomorrow

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Summit Racing™ 168-Tooth Flexplate SUM-G104STK

Flexplate, 168-Tooth, External Engine Balance, 1-Piece Rear Main Seal, Chevy, Small Block, GM V6, Each

Part Number: SUM-G104STK

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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QA1 Ultimate Ball Joints 1210-285B

Ball Joint, Adjustable, Front Upper, Greasable, +1.00 in. Stud Length, Buick, Chevy, GMC, Olds, Pontiac, Each

Part Number: QA1-1210-285B

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Dorman Headlight Bucket Kits 42437

Headlight Housing, Steel, Black, Rectangular, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: RNB-42437

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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ACDelco GM Genuine Parts Distributor Caps 10452459

Distributor Cap, Black, Chevy, GMC, V8, Each

Part Number: ADO-D329A

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

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U.S. Wheel 55 Series Silver Rallye Wheels 15x7

Wheels, 55 Series Silver Rallye, 15 in. x 7.00 in., Steel, Gloss Silver, 5 x 120.65mm Bolt Circle, 4.50 in. Backspacing, Each

Part Number: USW-55-5734450L

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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B&M 14 Bolt GM 10.5 Inch Differential Cover 70501

Differential Cover, Aluminum, Natural, Finned, B&M Logo, GM 10.5 in., 14-Bolt Cover, Each

Part Number: BMM-70501

4.55 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

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U.S. Mags Rambler U111 Gunmetal with Machined Lip Wheels 15x7

Wheel, Rambler U111, 15 in. x 7 in., Aluminum, Matte Gray, 5 x 4.75 in. Bolt Circle, 4.00 in. Backspace, Each

Part Number: USM-U11115706140

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Dorman Timing Covers 635-505

Timing Cover, 1-Piece, Plastic, Black, GM, Each

Part Number: RNB-635-505

4.6 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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McGaughy's Lowering Blocks 33119

Suspension Blocks, Lowering Blocks, 1.00 in. Thickness, Aluminum, U-bolts, Rear Axle Position, Chevrolet, GMC, Kit

Part Number: MMC-33119

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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King XP-Series Coated Rod Bearings CR 808XPNDC

Rod Bearings, XP-Series Coated, Copper/Lead/Alloy, Standard Size, Chevy, Big Block, Set of 8

Part Number: KGB-CR808XPNDC

Not Yet Reviewed

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Yukon Gear & Axle Pinion Adapter Sleeves YY GM26060977

Pinion Adapter Sleeve, Steel with Rubber Inner, Each

Part Number: YGA-41209

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Tomorrow

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Western Chassis Lowering Leaf Springs for 1982-2003 S10, 1982-1990 S15, 1991-2004 SONOMA - 821014

Lowering Springs, Rear Leaf, Black, Chevy, GMC, 4 in. Drop, Pair

Part Number: WST-821014

4.5 out of 5 stars ( 2 )

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Need It Sooner? We recommend these similar substitute parts:

Summit Racing™ Rear Lowering Leaf Springs SUM-708205

4.5 out of 5 stars ( 22 )

Estimated Ship Date: Tomorrow

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1998 GMC Parts and Accessories