SKU: PP105358
Body frame mounting kit Hummer H1 1992-2006
In stock2 pcs.$755.57Log in as dealer
Polyurethane Suspension Bushing Kits
A polyurethane bushing kit puts every bushing for one axle or the whole car into a single order: control arm, sway bar, shock and leaf spring bushings, sized for your vehicle. The set costs less than sourcing the same parts one at a time and gets the job done in one lift. Individual items are in the polyurethane parts catalog.
What a suspension bushing kit includes
Kits follow one rule: everything that comes out when the joint is opened up. A single-position kit is the polyurethane insert, outer shell, inner sleeve and grease. An axle kit adds matched left and right parts. A full suspension rebuild kit covers control arm and tie rod, sway bar and shock bushings, plus leaf spring bushings on body-on-frame vehicles.
Kit content follows dimensions, not model names: two cars from different makers often share a part. We build kits from measurements, which covers vehicles whose factory kits are discontinued.
When to buy the kit instead of a single bushing
A worn bushing is rarely alone: neighboring positions on the same arm covered identical mileage, so after a spot repair the knock returns from the other side. Labor is the second reason — dropping an arm costs the same for one bushing or four.
Signs the suspension needs a full bushing kit
- a dull knock over small bumps that moves from side to side;
- the car pulls after a pothole and needs constant steering correction;
- alignment does not hold — camber and toe drift soon after a setup;
- uneven tire wear on the inner or outer edge of the tread;
- squeaks and rattles when turning the wheel, in cold or wet;
- cracked rubber inserts, rust streaks around the shells, play when you pry with a bar.
Control arm bushings almost always go together with sway bar bushings and shock absorber bushings, so include them from the start.
Polyurethane vs rubber in a suspension rebuild kit
Factory kits ship with rubber, and that is why the job gets repeated. Rubber works in tension, swells in oil, hardens in the cold and delaminates from road salt: alignment drifts, then the shell spins in the arm and ruins the bore — and the repair now costs more than the parts.
Polyurethane in the same geometry works in compression: it shrugs off oil, salt and temperature swings and holds geometry under load. A quality polyurethane bushing lasts 100,000–150,000 km (about 60,000–95,000 miles) — three to five times longer than the rubber original. Across a kit, you fit a dozen parts once instead of twice, and pay shop labor once. The trade-off is a firmer ride over small bumps, barely noticeable at standard durometer.
How to choose a polyurethane bushing kit for your car
By kit level: one joint, one axle or the full suspension
Start from what you are opening up. If one arm is coming off, take the axle kit — replacing bushings in pairs per axle is not optional, or the suspension works asymmetrically and it shows under braking. For a full rebuild the complete kit is cheaper. Need one part only? Buy bushings with outer shell individually.
By dimensions, make and model
Each position needs three measurements: outer diameter, inner diameter for the bolt and overall height. Measure the old part with calipers and the bore separately: a spun shell may have opened it up. For imports, an OE number or photos next to a ruler are enough — we match by size.
By durometer
Keep one durometer across the kit: never mix standard and firm parts on one axle, and fit the same grade left and right. Standard suits daily driving; firm suits off-road use, towing and loaded vehicles.
Firm parts hold suspension geometry better under load. Shore hardness is listed on every item.
Product Photos
Why Buy Bushing Kits from PolyPro — Wholesale and Retail
PolyPro is the manufacturer: own molds, own casting shop, own dimensional control. Kits ship direct with no middleman markup: one kit at retail, batches for shops and fleets via the partner program. A kit costs less than the same parts bought separately and ships as one order. Anything not in stock we pour as custom polyurethane parts from a drawing, a sample or the worn original, one piece minimum. Grease is included; all products are warranted.
Frequently asked questions
What is included in a polyurethane bushing kit?
It depends on the kit level. A single-position kit is the polyurethane insert, the outer shell, the inner sleeve and assembly grease. An axle kit adds matched left and right parts. A full suspension bushing kit covers control arm and tie rod, sway bar and shock bushings and, on body-on-frame vehicles, leaf spring bushings.
Is a bushing kit cheaper than buying bushings individually?
Yes, on two counts. The kit price is lower than the sum of the same parts bought separately, and shop labor is paid once — dropping an arm or a beam gives access to several positions at the same time. A second visit one season later wipes out any saving from buying one bushing at a time.
Do bushings have to be replaced in pairs on the same axle?
Yes. Left and right parts have covered the same mileage, so replacing one side means the other fails soon after. A new bushing next to a worn one also gives different stiffness across the axle, so the suspension works asymmetrically and the car pulls under braking. That is why PolyPro kits are supplied in pairs.
How long do polyurethane bushings last?
A quality polyurethane bushing lasts 100,000–150,000 km (about 60,000–95,000 miles), three to five times longer than a rubber original. Polyurethane does not crack with age, road salt or temperature swings, so a kit normally lasts until the next major suspension overhaul. PolyPro warrants all of its products.
What grease should I use, and do polyurethane bushings squeak?
Use silicone or purpose-made assembly grease — it eases press-fitting and prevents squeaking, which is the one complaint people have about poly bushings. Grease is included with every kit. Do not use petroleum greases: they are not critical for PolyPro polyurethane but will destroy nearby rubber parts.
Can I order a single bushing instead of the whole kit?
Yes. Retail orders start at one piece: take the kit when the axle is being rebuilt, or pull single items from the catalog when only one bushing is worn. Sizes we do not hold in stock are poured to order from a drawing, a sample or the worn original, also from one piece, and can be added to a kit.
What terms do you offer shops and fleets buying kits in volume?
Repair shops, parts stores, fleets and resellers buy directly from the manufacturer, with no distributor in between. Terms are set out in the partner program: bonuses tied to turnover or to the volume of a single order, access to prices, stock and shipping dates, and shipment under the partner's own brand.