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Car & Truck Chassis & Suspension Parts
Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf...
Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf springs, so whether you want a smooth street ride, responsive race handling, or rugged off-road control, you can find all the parts you need for your suspension upgrades here. We have complete lowering kits for a road-hugging sport stance, and lift kits to accommodate massive tires and greater suspension travel. Summit also has steering components, sway bars, frame rails and connectors, tie rods, wheelie bars, and wheel tubs, plus engine, transmission, and...
Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf springs, so whether you want a smooth street ride, responsive race handling, or rugged off-road control, you can find all the parts you need for your suspension upgrades here. We have complete lowering kits for a road-hugging sport stance, and lift kits to accommodate massive tires and greater suspension travel. Summit also has steering components, sway bars, frame rails and connectors, tie rods, wheelie bars, and wheel tubs, plus engine, transmission, and suspension mounts and bushings.
Showing In Stock Items. Show All 442 Items.
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Steering Box, New Delphi 600 Series, Power, Front Steer, Cast Iron, Natural, Ford, Lincoln, Mercury, Each
Part Number: BRG-800128
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Conversion, Double Adjustable Shocks, 600 lb. Spring Rate, Upper and Lower Control Arms, Tubular, Black, 2-4 in. Drop, Chevy, GMC, Kit
Part Number: QA1-52613-D600
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Spring, Pro, Pigtail Style, 600 lbs./in. Rate, 10 in. Length, 3.50/2.50 in. I.D., Silver Powdercoated, Each
Part Number: QA1-10HTSP600
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Spring, Pro, Flat Style, 600 lbs./in. Rate, 10 in. Length, 3.50/2.50 in. I.D., Silver Powdercoated, Each
Part Number: QA1-10HTSF600
Estimated Ship Date: Today
Estimated Ship Date: Today
Transmission Crossmember, Steel, Black Powdercoated, Tremec TKO 500/TKO 600/TKX, Chevrolet, Pontiac, Each
Part Number: BTM-4601012
Not Yet Reviewed
Estimated Ship Date: May 7, 2026 if ordered today
Estimated Ship Date: May 7, 2026 if ordered today
Coilover Spring, Pro, Flat Style, 600 lbs./in. Rate, 8 in. Length, 4.10/2.50 in. I.D., Silver Powdercoated, Each
Part Number: QA1-8HTBF600
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Suspension Lift Kit, Nitro Plus, 2.0 in. Lift, Front Coil Springs 220-330 lbs., 2.0 in. Rear, Leaf Springs 600 lb., Nitro Shocks, Toyota, Kit
Part Number: EMU-1013K
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Mail - In Rebate
Rebate amount based on part(s) total.
Rebate Expires: 4/30/2026
Coilover Kit, SS-Series, Adjustable,14.5 in. Extended, 10.15 in. Collapsed, 600 lbs./in. Rate, Pair
Part Number: AAX-A890600B
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Mail - In Rebate
Rebate amount based on part(s) total.
Rebate Expires: 4/30/2026
Estimated Ship Date: Apr 27, 2026 if ordered today
Suspension Lift Kit, Nitro Plus, 2.0 in. Lift, Front Coil Springs, 2.0 in. Rear, Leaf Springs 600 lb., Front/Rear Nitro Shocks, Toyota, Kit
Part Number: EMU-1012K
Not Yet Reviewed
Estimated Ship Date: May 21, 2026 if ordered today
Estimated Ship Date: May 21, 2026 if ordered today
Stock Replacement, Twin Tube, Gas Charged, Each
Part Number: SXR-316-600
Not Yet Reviewed
Estimated Ship Date: May 4, 2026 if ordered today
Estimated Ship Date: May 4, 2026 if ordered today
Lowering Springs, Front, 2.0 in Drop, Small Block, 600 LBS per inch, Gray Powdercoated, Chevy, Pontiac, Pair
Part Number: HSS-1908F
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Conversion, 600 lb Front 200 lb Rear Spring Rate, Upper/Lower Control Arms, Tubular, Black, 2-4 in. Front/ 4-7 in. Rear Drop, Chevy, GMC, Kit
Part Number: QA1-HK03-OBS1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coilover Springs, Gray/Silver, 9.0 in. Length, 600 lbs./in. Spring Rate, Front, Pair
Part Number: HDT-CSV-600-09
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Coilover Springs, Gray/Silver, 10.0 in. Length, 600 lbs./in. Spring Rate, Front or Rear, Pair
Part Number: HDT-CSV-600-10
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Suspension Package, IFS, Front, 3 in. to 4 in. Drop, Single Adjustable Coilover, 600 lbs./in. Spring Rate, Tubular Arms, Dodge, Kit
Part Number: QA1-52614-S600
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Sway Bar, Replacement, Front, Toyota, Steel, Black, Solid, Kit
Part Number: RNB-927-600
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Suspension Package, IFS, Front, 3 in. to 4 in. Drop, Double Adjustable Coilover, 600 lbs./in. Spring Rate, Tubular Arms, Dodge, Kit
Part Number: QA1-52614-D600
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Mail - In Rebate
Rebate amount based on part(s) total.
Rebate Expires: 4/30/2026
Coilover Springs, 600 lbs./in. Rate, 2.50 in. I.D., 9.00 in. Length, Black, Pair
Part Number: AAX-9-600BK2
Estimated Ship Date: Today
Mail - In Rebate
Rebate amount based on part(s) total.
Rebate Expires: 4/30/2026
Estimated Ship Date: Today
Coilover Springs, Gray/Silver, 8.0 in. Length, 600 lbs./in. Spring Rate, Front, Pair
Part Number: HDT-CSV-600-08
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Suspension Handling Package, Front, 3 in. to 5 in. Drop, Single Adjustable Coilover, 600 lbs./in. Spring Rate, Tubular Control Arms, Kit
Part Number: QA1-52620-S600
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
QA1 1965-79 F-100 Coilover Conversion Systems for 1965-1979 F-100, 1975-1979 F-150 - 52620-S500
Estimated Ship Date: Today
Suspension Handling Package, Front, 5 in. to 7 in. Drop, Double Adjustable Coilover, 600 lbs./in. Spring Rate, Tubular Control Arms, Kit
Part Number: QA1-52621-D600
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 2026 if ordered today
Coilover Kit, MESA 2.5, 22.34 in. Extended, 16.82 in. Compressed, 5.52 in. Stroke, 600 in/lb Spring Rate, Chevy, GMC, Front, Pair
Part Number: ADZ-100ADS-10080
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Coil Overs, Front, Adjustable, Aluminum Socks, Coilover Spring, 600 lbs./in. Spring Rate, Chevy, Pontiac, Kit
Part Number: ART-11163511
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Suspension Package, IFS, Front, 5 in. to 6 in. Drop, Double Adjustable Coilover, 600 lbs./in. Spring Rate, Tubular Arms, Dodge, Kit
Part Number: QA1-52615-D600
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Coilover Kit, Direct-Fit Race, Remote Reservoir, 600 lb/in., 22.49 in. Extended, 15.50 in. Compressed, 7.99 in. Stroke, Front, Toyota, Pair
Part Number: ADZ-250TN00L000
Not Yet Reviewed
Estimated Ship Date: Jun 15, 2026 if ordered today
Estimated Ship Date: Jun 15, 2026 if ordered today
