Shock Absorber Sets
Front and rear shock sets for the whole truck.
2015 Chevrolet Silverado 1500 4WD Suspension Diagram
This interactive diagram shows the front suspension, steering, driveline and rear suspension of the 2015 Chevrolet Silverado 1500 4x4. Hover over or tap any part to see what it does, the signs that it is worn, and the replacement parts we carry that fit your truck, down to the side and position.
2015 Chevrolet Silverado 1500 4WD Suspension Diagram (Full Chassis)
2015 Chevrolet Silverado 1500 4WD Front Suspension and Steering Diagram
2015 Chevrolet Silverado 1500 4WD Rear Suspension Diagram
We carry parts for it Not stocked yet Hover or tap any part.
The 2014 to 2018 Silverado 1500 4WD uses independent front suspension with upper and lower control arms. A coil spring and shock sit together as a coilover on the lower arm, and the upper arm curves around the spring. CV axles drive the front wheels from a frame mounted differential. Steering is rack and pinion, with the rack ahead of the CV axles and the sway bar behind the differential. The rear is a solid axle with leaf springs outboard of the frame rails and staggered shocks.
We carry replacement parts for 34 of the 40 components on this diagram, 183 parts in all. See every part for the 2015 Chevrolet Silverado 1500 4WD.
Packages and kits
Complete Suspension Bushing Kits
One kit with the suspension bushings for the whole truck.
Complete Coilover Assemblies
A shock, coil spring and top mount already assembled, so no spring compressor is needed. Height adjustable coilovers are here too.
Lift, Leveling and Lowering Kits
Kits that change ride height, with the spacers, shackles and brackets they need.
Front Suspension
1 Upper Ball Joint (driver and passenger side)
The upper ball joint is the top pivot between the upper control arm and the steering knuckle. Its stud points down through the top ear of the knuckle.
Signs of wear: Clunking over bumps, wandering steering, uneven tire wear, or play when the wheel is rocked top to bottom.
Tip: Trucks with forged arms and trucks with stamped steel or aluminum arms use different joints, so check which arm is on your truck.
See all Front Upper Ball Joint parts for the 2015 Chevrolet Silverado 1500 4WD
2 Lower Ball Joint (driver and passenger side)
The lower ball joint carries the front of the truck from the lower control arm to the steering knuckle. Its stud points down through the bottom ear of the knuckle.
Signs of wear: Clunks over bumps, a loose feel in the front end, or play when the wheel is rocked top to bottom with the truck on a jack.
Tip: Lower joints differ between cast, stamped steel and aluminum arms, so match the joint to your arm.
See all Front Lower Ball Joint parts for the 2015 Chevrolet Silverado 1500 4WD
3 Upper Control Arm (driver and passenger side)
A curved arm that wraps around the coil spring and holds the top of the knuckle. Two bushings pivot on bolts in the frame bracket, and the ball joint is at the outer end.
Signs of wear: Clunks, torn inner bushings, a worn ball joint, or an alignment that will not hold.
Tip: The drawing shows the forged steel arm. Trucks with an aluminum knuckle use a stamped steel arm instead, and the two do not swap, so check which arm is on your truck.
See all Front Control Arm parts for the 2015 Chevrolet Silverado 1500 4WD
4 Lower Control Arm (driver and passenger side)
The large forked arm that carries the load. The coilover bolts into tabs across its opening, the sway bar link passes through its rear leg, and the ball joint is at the outer end.
Signs of wear: Clunks over bumps, torn bushings, a loose ball joint, or uneven tire wear.
Tip: Left and right lower arms are different parts. The drawing shows the forged steel arm. Stamped steel and aluminum arms go with the aluminum knuckle, so match the arm type to your truck.
See all Front Control Arm parts for the 2015 Chevrolet Silverado 1500 4WD
5 Upper Control Arm Bushing (driver and passenger side)
Rubber bushings pressed into the upper arm where it pivots on the frame bracket.
Signs of wear: Cracked or split rubber, clunks over bumps, or an alignment that wanders.
See all Front Control Arm Bushings parts for the 2015 Chevrolet Silverado 1500 4WD
6 Lower Control Arm Bushing (driver and passenger side)
Rubber bushings pressed into the lower arm, a shorter one forward and a longer one rearward.
Signs of wear: Cracked rubber, a clunk on braking, or shimmy under load.
See all Front Control Arm Bushings parts for the 2015 Chevrolet Silverado 1500 4WD
7 Alignment Cam Bolts
Camber and caster are set at the upper arm pivots. Factory arms use guide pins, and adjustable cam kits replace them when more range is needed.
Signs of wear: Tire wear on one edge, or an alignment shop that cannot reach spec.
Tip: Check alignment after any change to ride height or arms.
See all Front End Alignment Kit parts for the 2015 Chevrolet Silverado 1500 4WD
8 Steering Knuckle (driver and passenger side)
The knuckle joins the upper and lower ball joints, carries the hub and caliper, and has the steering arm that points forward to the outer tie rod end.
Signs of wear: Rarely a wear item. Check it after a hard curb strike.
Tip: Aluminum and iron knuckles take different arms, and drop spindles are sold to suit each. The knuckle on the diagram is a simplified shape.
We don't carry a steering knuckle for the 2015 Chevrolet Silverado 1500 4WD yet. Ask us about this part and we will try to source it.
9 Front Strut Bumper (driver and passenger side)
A soft bumper on the shock rod inside the coil spring. It cushions the end of the suspension travel.
Signs of wear: A hard bang when the front bottoms out.
Tip: It comes off when the coilover is taken apart, so check it during a shock or spring job.
See all Front Bump Stops parts for the 2015 Chevrolet Silverado 1500 4WD
10 Front Shock Absorber (driver and passenger side)
The damper in the center of the coilover. A cross pin at the bottom bolts into tabs on the lower arm, and the rod goes up through the coil spring to the top mount.
Signs of wear: Bouncing after bumps, nose dive on braking, leaking fluid, or cupped tires.
Tip: The coil spring is under load when the coilover is apart. Use a spring compressor, or fit a complete assembly.
See all Front Shock Absorber parts for the 2015 Chevrolet Silverado 1500 4WD
11 Front Coil Spring (driver and passenger side)
The coil spring sits around the shock, between a seat on the shock body and the top plate. The upper arm wraps around it.
Signs of wear: A sagging front end, a clunk from a broken coil, or a truck that leans to one side.
Tip: Spring rates change with cab and equipment, so match the spring to your truck. Replace in pairs.
See all Front Coil Springs parts for the 2015 Chevrolet Silverado 1500 4WD
12 Front Coil Spring Seat (driver and passenger side)
A rubber seat between the top of the coil spring and the top plate. It stops metal to metal noise.
Signs of wear: A creak or clunk when turning or going over bumps.
Tip: Trucks with Magnetic Ride use a different seat.
See all Front Coil Spring Isolator Pads parts for the 2015 Chevrolet Silverado 1500 4WD
13 Front Strut Mount (driver and passenger side)
The top plate of the coilover. Three studs bolt it up into the frame tower, and the shock rod is fixed through its center.
Signs of wear: A knock at the top of the tower, or a coilover that moves when you bounce the truck.
See all Front Strut Mount parts for the 2015 Chevrolet Silverado 1500 4WD
14 Front Sway Bar
The bar runs across the truck behind the front differential, wraps outboard of the frame rails, and reaches forward to a link on each lower arm.
Signs of wear: More body roll in turns, or a clunk from a bracket.
Tip: Stock bars are 30 to 36 mm depending on trim and package.
See all Front Sway Bar parts for the 2015 Chevrolet Silverado 1500 4WD
15 Front Sway Bar Bushing
Rubber bushings hold the bar to the bottom of the frame rails, each under a steel strap.
Signs of wear: A squeak or clunk over bumps, or a bar that shifts side to side.
Tip: Bushings are sold by bar size, so measure the bar first.
See all Front Sway Bar Bushings parts for the 2015 Chevrolet Silverado 1500 4WD
16 Front Sway Bar End Link (driver and passenger side)
A long bolt with a sleeve and rubber bushings that ties the end of the bar to the rear leg of the lower arm.
Signs of wear: A rattle or clunk over small bumps.
Tip: Replace both sides together.
See all Front Sway Bar Endlinks parts for the 2015 Chevrolet Silverado 1500 4WD
Steering
17 Outer Tie Rod End (driver and passenger side)
Threads onto the inner tie rod. Its stud points down through the steering arm on the knuckle.
Signs of wear: Wandering, uneven tire wear, or play at the wheel when it is rocked side to side.
Tip: Get an alignment after replacing one.
See all Front Outer Tie Rod End parts for the 2015 Chevrolet Silverado 1500 4WD
18 Inner Tie Rod End (driver and passenger side)
Screws into the end of the steering rack under the boot, and carries the outer tie rod end on its other end.
Signs of wear: A clunk through the wheel on rough roads, or play that the outer end does not explain.
Tip: Mark the outer end position before taking it off, to keep toe close.
See all Front Inner Tie Rod End parts for the 2015 Chevrolet Silverado 1500 4WD
19 Steering Rack
A rack and pinion ahead of the CV shafts, bolted to the front crossmember. The pinion is toward the driver side and the electric assist is toward the passenger side.
Signs of wear: Free play in the wheel, a torn boot, or an assist fault warning.
We don't carry a steering rack for the 2015 Chevrolet Silverado 1500 4WD yet. Ask us about this part and we will try to source it.
Driveline
20 Front CV Axle (driver and passenger side)
Six bolts hold the inner joint to the flange on the differential. The shaft runs behind the coilover and its outer joint splines through the hub.
Signs of wear: Clicking on turns in four wheel drive, or grease flung from a torn boot.
See all CV Joint Parts - Front parts for the 2015 Chevrolet Silverado 1500 4WD
21 Front Differential Mounts
The front differential is carried by the frame on brackets with rubber bushings.
Signs of wear: A clunk when shifting or taking off in four wheel drive, or a differential that has dropped.
See all Front Differential Bushings parts for the 2015 Chevrolet Silverado 1500 4WD
22 Front Driveshaft U-Joint at Front Differential
The U-joint at the front differential end of the front driveshaft. Straps hold it to the yoke.
Signs of wear: Clunks when shifting into four wheel drive, or a vibration in four wheel drive.
See all U Joint parts for the 2015 Chevrolet Silverado 1500 4WD
23 Front Driveshaft U-Joint at Transfer Case
The U-joint at the transfer case end of the front driveshaft.
Signs of wear: Clunks when shifting into four wheel drive, or a vibration in four wheel drive.
See all U Joint parts for the 2015 Chevrolet Silverado 1500 4WD
24 Rear Driveshaft U-Joint at Transfer Case
The U-joint at the front of the rear driveshaft.
Signs of wear: A clunk when shifting from park to drive, or a vibration that rises with speed.
Tip: Joint size depends on the driveline, so check your truck. Two joint and three joint shafts were both fitted.
See all U Joint parts for the 2015 Chevrolet Silverado 1500 4WD
25 Rear Driveshaft U-Joint at Rear Axle
The U-joint at the rear axle end of the rear driveshaft.
Signs of wear: A clunk when shifting from park to drive, or a vibration that rises with speed.
Tip: Joint size depends on the driveline, so check your truck.
See all U Joint parts for the 2015 Chevrolet Silverado 1500 4WD
Rear Suspension
34 Rear Leaf Spring (driver and passenger side)
The rear springs are multi leaf packs that sit on top of the axle, outboard of the frame rails, and locate the axle as well as carry the load.
Signs of wear: A sagging rear end, cracked or shifted leaves, or a clunk from a broken center bolt.
Tip: Spring packs vary with payload and package.
We don't carry a rear leaf spring for the 2015 Chevrolet Silverado 1500 4WD yet. Ask us about this part and we will try to source it.
35 Leaf Spring Bushing (driver and passenger side)
Rubber bushings in the spring eyes and the top of the shackle.
Signs of wear: Squeaks over bumps, or a rear axle that shifts under power.
See all Rear Leaf Spring Bushings parts for the 2015 Chevrolet Silverado 1500 4WD
36 Leaf Spring Shackle (driver and passenger side)
The shackle links the rear eye of the spring to a bracket on the frame, so the spring can change length as it flexes.
Signs of wear: A clunk at the rear, or a cracked or rusted bracket.
See all Rear Leaf Spring Shackles parts for the 2015 Chevrolet Silverado 1500 4WD
37 Rear Axle U-Bolts (driver and passenger side)
U-bolts clamp the leaf spring and spring pad to the top of the axle tube, with a plate under the tube.
Signs of wear: A clunk on take off, or an axle that has shifted on the spring.
Tip: Fit new U-bolts when the old ones are removed.
We don't carry a rear axle u-bolts for the 2015 Chevrolet Silverado 1500 4WD yet. Ask us about this part and we will try to source it.
38 Rear Shock Absorber (driver and passenger side)
Staggered shocks: the passenger side shock sits ahead of the axle and the driver side shock behind it. Each is laid over toward a bracket on a frame crossmember.
Signs of wear: Bouncing, axle hop, leaking fluid, or cupped rear tires.
Tip: Replace in pairs.
See all Rear Shock Absorber parts for the 2015 Chevrolet Silverado 1500 4WD
39 Rear Bump Stop (driver and passenger side)
A rubber bumper under the frame rail that meets a pad on the axle tube at full compression.
Signs of wear: A hard bang over big bumps when loaded.
We don't carry a rear bump stop for the 2015 Chevrolet Silverado 1500 4WD yet. Ask us about this part and we will try to source it.
Brakes and Hubs
26 Front Wheel Bearing and Hub (driver and passenger side)
A sealed bearing and hub bolted to the knuckle with three bolts. The CV axle splines through it and the wheel bolts to its six studs.
Signs of wear: A growl that changes when you swerve, play at the wheel, or a wheel speed sensor fault.
See all Front Wheel Bearing and Hub Assembly parts for the 2015 Chevrolet Silverado 1500 4WD
27 Front Brake Rotor (driver and passenger side)
The 330 mm vented front rotor. It slips over the hub and is held on by the wheel.
Signs of wear: Pulsing in the pedal, grooves, or a shake when braking.
Tip: Replace in pairs.
See all Front Brake Rotor parts for the 2015 Chevrolet Silverado 1500 4WD
28 Front Brake Caliper (driver and passenger side)
A floating caliper on a bracket bolted to the rear of the knuckle.
Signs of wear: Pulling to one side when braking, a soft pedal, a stuck piston, or a fluid leak.
See all Front Brake Caliper parts for the 2015 Chevrolet Silverado 1500 4WD
29 Front Brake Pads (driver and passenger side)
The pads sit in the caliper bracket, one each side of the rotor. They are shown pulled out of the caliper.
Signs of wear: Squealing, grinding, or a longer stopping distance.
See all Front Brake Pads parts for the 2015 Chevrolet Silverado 1500 4WD
30 Rear Brake Rotor (driver and passenger side)
The 345 mm vented rear rotor, with a tall hat. A small parking brake drum is inside the hat.
Signs of wear: Pulsing in the pedal, or grooves.
Tip: Replace in pairs.
See all Rear Brake Rotor parts for the 2015 Chevrolet Silverado 1500 4WD
31 Rear Brake Caliper (driver and passenger side)
A floating aluminum caliper ahead of the axle.
Signs of wear: A stuck piston, uneven pad wear, or a fluid leak.
See all Rear Brake Caliper parts for the 2015 Chevrolet Silverado 1500 4WD
32 Rear Brake Pads (driver and passenger side)
The rear pads, shown pulled out of the caliper.
Signs of wear: Squealing, grinding, or a dragging brake.
See all Rear Brake Pads parts for the 2015 Chevrolet Silverado 1500 4WD
33 Parking Brake Shoes (driver and passenger side)
Small shoes inside the hat of the rear rotor, shown pulled out past the axle flange. They hold the truck when parked.
Signs of wear: The parking brake will not hold, or the lever travels too far.
See all Parking Brake Shoes parts for the 2015 Chevrolet Silverado 1500 4WD
Body and Mounts
40 Body Mounts
Rubber cushions between the frame outriggers and the body.
Signs of wear: A clunk or shift from the body over bumps, or a cab that sits unevenly.
We don't carry a body mounts for the 2015 Chevrolet Silverado 1500 4WD yet. Ask us about this part and we will try to source it.
Questions about the 2015 Chevrolet Silverado 1500 4WD suspension
What are the most common front end wear items on a 2015 Silverado 1500?
Lower ball joints, control arm bushings, tie rod ends and sway bar links are the usual ones. Check them with the wheels off the ground, because a worn joint shows up as play you can feel by hand.
Why are there two kinds of control arms for a 2015 Silverado 1500?
2014 to 2016 trucks came with either forged steel arms and an iron knuckle, or stamped steel or aluminum arms and an aluminum knuckle. The arms and ball joints do not swap between them, so look at your arms before you order. 2017 and 2018 trucks use the stamped steel or aluminum arms. The diagram shows the forged steel arms, the type most of our arms for this truck are.
Does the 2015 Silverado 1500 4x4 have torsion bars?
No. The front springs are coil springs on the shocks, and the rear springs are leaf springs.
Do I need an alignment after replacing front end parts?
Yes. Replacing tie rods, ball joints, control arms or coilovers changes the alignment. Toe is set at the tie rods. Factory arms use guide pins at the upper arm, so a cam kit is needed for extra camber or caster range.
Which years share this suspension?
The 2014 to 2018 Silverado and Sierra 1500 4WD share this layout, and so do the 2019 Silverado 1500 LD and Sierra 1500 Limited. Parts can still change by cab, engine and options, so the parts shown here are the ones listed for the 2015 4WD truck.
Printable 2015 Chevrolet Silverado 1500 4WD suspension diagrams
Numbered diagrams to print or save for the shop. The numbers match the numbered parts on the interactive diagram.
