Firestone Coil-Rite Air Helper Spring Kit Front 63-99 P30 (W237604100)
FIR4100
If you're looking for a smoother ride for your vehicle that has a coil spring suspension, Firestone Coil-Rite air helper springs are what you need. Designed to fit inside existing coil springs to create a variable spring rate, Coil-Rite will level your vehicle and assist with more effective braking and handling, even under heavy loading and adverse road conditions.Coil-Rite enables you to control the air pressure in the air helper springs so you can make adjustments for varying loads and road conditions. Spring performance can be altered as easily as inflating a tire.Firestone Coil-Rite air helper springs are made of durable, elastic polyurethane, providing years of comfort and stability to your vehicle. The air springs will support 500-1000 lbs. per set (not to exceed vehicle's GVWR). Coil-Rite Air Helper Springs are designed to work in temperatures between 180deg F (82deg C) and -40deg F (-40deg C).
WarrantyInstallation Instructions
Installation Instructions
- Keep Headlights Aimed On The Road
- Improve Braking Effectiveness
- Improve Steering And Balance
- Increase Vehicle Stability
- Maintain A Level Vehicle
- Prevent Bottoming Out
- Reduce Tire Wear
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1973-1974 | Chevrolet | Blazer | Base |
| 1987 | Chevrolet | Blazer | Custom Deluxe |
| 1988-1989 | Chevrolet | Blazer | Scottsdale |
| 1987-1989 | Chevrolet | Blazer | Silverado |
| 1978-1980 | Chevrolet | C10 | Big Ten |
| 1975-1981 | Chevrolet | C10 | Cheyenne |
| 1981-1986 | Chevrolet | C10 | Custom |
| 1975-1980 | Chevrolet | C10 | Custom Deluxe |
| 1981 | Chevrolet | C10 | Deluxe |
| 1975-1986 | Chevrolet | C10 | Scottsdale |
| 1975-1986 | Chevrolet | C10 | Silverado |
| 1973-1974 | Chevrolet | C10 Pickup | Base |
| 1973-1974 | Chevrolet | C10 Suburban | Base |
| 1981-1986 | Chevrolet | C10 Suburban | Custom |
| 1975-1980 | Chevrolet | C10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C10 Suburban | Deluxe |
| 1975-1980,1982,1984-1986 | Chevrolet | C10 Suburban | Scottsdale |
| 1975-1980,1982-1986 | Chevrolet | C10 Suburban | Silverado |
| 1992-1999 | Chevrolet | C1500 Suburban | Base |
| 1995-1999 | Chevrolet | C1500 Suburban | LS |
| 1995-1997,1999 | Chevrolet | C1500 Suburban | LT |
| 1992-1994 | Chevrolet | C1500 Suburban | Silverado |
| 1975-1981 | Chevrolet | C20 | Cheyenne |
| 1981-1986 | Chevrolet | C20 | Custom |
| 1975-1980 | Chevrolet | C20 | Custom Deluxe |
| 1981 | Chevrolet | C20 | Deluxe |
| 1975-1986 | Chevrolet | C20 | Scottsdale |
| 1975-1986 | Chevrolet | C20 | Silverado |
| 1973-1974 | Chevrolet | C20 Pickup | Base |
| 1973-1974 | Chevrolet | C20 Suburban | Base |
| 1981-1986 | Chevrolet | C20 Suburban | Custom |
| 1975-1980 | Chevrolet | C20 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C20 Suburban | Deluxe |
| 1975-1980,1982,1984-1986 | Chevrolet | C20 Suburban | Scottsdale |
| 1975-1977,1979-1980,1982-1986 | Chevrolet | C20 Suburban | Silverado |
| 1975-1981 | Chevrolet | C30 | Cheyenne |
| 1981-1986 | Chevrolet | C30 | Custom |
| 1975-1980 | Chevrolet | C30 | Custom Deluxe |
| 1981 | Chevrolet | C30 | Deluxe |
| 1975-1986 | Chevrolet | C30 | Scottsdale |
| 1975-1986 | Chevrolet | C30 | Silverado |
| 1967-1974 | Chevrolet | C30 Pickup | Base |
| 1983 | Chevrolet | G10 | Base |
| 1975-1995 | Chevrolet | G10 | Beauville |
| 1981-1984,1986-1987 | Chevrolet | G10 | Bonaventure |
| 1975-1995 | Chevrolet | G10 | Chevy Van |
| 1975-1995 | Chevrolet | G10 | Sportvan |
| 1970-1974 | Chevrolet | G10 Van | Base |
| 1970-1974 | Chevrolet | G10 Van | Sportvan |
| 1975-1995 | Chevrolet | G20 | Beauville |
| 1983-1984 | Chevrolet | G20 | Bonaventure |
| 1975-1995 | Chevrolet | G20 | Chevy Van |
| 1978-1981 | Chevrolet | G20 | Nomad |
| 1975-1995 | Chevrolet | G20 | Sportvan |
| 1970-1974 | Chevrolet | G20 Van | Base |
| 1970-1974 | Chevrolet | G20 Van | Sportvan |
| 1975-1995 | Chevrolet | G30 | Beauville |
| 1983-1984 | Chevrolet | G30 | Bonaventure |
| 1975-1995 | Chevrolet | G30 | Chevy Van |
| 1975-1995 | Chevrolet | G30 | Hi-Cube |
| 1975-1995 | Chevrolet | G30 | Sportvan |
| 1970-1974 | Chevrolet | G30 Van | Base |
| 1970-1974 | Chevrolet | G30 Van | Sportvan |
| 1976 | Chevrolet | K5 Blazer | Base |
| 1975-1980 | Chevrolet | K5 Blazer | Cheyenne |
| 1981-1986 | Chevrolet | K5 Blazer | Custom |
| 1975,1977-1980 | Chevrolet | K5 Blazer | Custom Deluxe |
| 1981 | Chevrolet | K5 Blazer | Deluxe |
| 1984 | Chevrolet | K5 Blazer | Scottsdale |
| 1978,1980-1986 | Chevrolet | K5 Blazer | Silverado |
| 1975-1999 | Chevrolet | P30 | Base |
| 1975-1985,1987-1990 | Chevrolet | P30 | Step-Van |
| 1963-1967 | Chevrolet | P30 Series | Base |
| 1968-1974 | Chevrolet | P30 Van | Base |
| 1987 | Chevrolet | R10 | Custom Deluxe |
| 1987 | Chevrolet | R10 | Scottsdale |
| 1987 | Chevrolet | R10 | Silverado |
| 1987 | Chevrolet | R10 Suburban | Custom Deluxe |
| 1987-1988 | Chevrolet | R10 Suburban | Scottsdale |
| 1987-1988 | Chevrolet | R10 Suburban | Silverado |
| 1989-1991 | Chevrolet | R1500 Suburban | Scottsdale |
| 1989-1991 | Chevrolet | R1500 Suburban | Silverado |
| 1987-1988 | Chevrolet | R20 | Custom Deluxe |
| 1987 | Chevrolet | R20 | Scottsdale |
| 1987 | Chevrolet | R20 | Silverado |
| 1987 | Chevrolet | R20 Suburban | Custom Deluxe |
| 1987-1988 | Chevrolet | R20 Suburban | Scottsdale |
| 1987-1988 | Chevrolet | R20 Suburban | Silverado |
| 1989-1991 | Chevrolet | R2500 Suburban | Scottsdale |
| 1989-1991 | Chevrolet | R2500 Suburban | Silverado |
| 1987 | Chevrolet | R30 | Custom Deluxe |
| 1987 | Chevrolet | R30 | Scottsdale |
| 1987 | Chevrolet | R30 | Silverado |
| 1983-1991 | Chevrolet | S10 Blazer | Base |
| 1987-1989 | Chevrolet | S10 Blazer | High Country |
| 1983-1990 | Chevrolet | S10 Blazer | Sport |
| 1983-1988,1990-1991 | Chevrolet | S10 Blazer | Tahoe |
| 1991 | Chevrolet | S10 Blazer | Tahoe LT |
| 1975-1978 | GMC | C15 | Base |
| 1977-1978 | GMC | C15 | Heavy Half |
| 1975-1978 | GMC | C15 | High Sierra |
| 1977 | GMC | C15 | Indy Hauler |
| 1975-1978 | GMC | C15 | Sierra Classic |
| 1975-1978 | GMC | C15 | Sierra Grande |
| 1978 | GMC | C15 | Street Coupe |
| 1975-1978 | GMC | C15 Suburban | Base |
| 1975-1978 | GMC | C15 Suburban | High Sierra |
| 1975-1978 | GMC | C15 Suburban | Sierra Classic |
| 1975-1978 | GMC | C15 Suburban | Sierra Grande |
| 1973-1974 | GMC | C15/C1500 Pickup | Base |
| 1973-1974 | GMC | C15/C1500 Suburban | Base |
| 1979-1986 | GMC | C1500 | Base |
| 1979-1980 | GMC | C1500 | Heavy Half |
| 1979-1986 | GMC | C1500 | High Sierra |
| 1979-1986 | GMC | C1500 | Sierra Classic |
| 1979-1982 | GMC | C1500 | Sierra Grande |
| 1979-1982 | GMC | C1500 | Street Coupe |
| 1979-1986,1992-1999 | GMC | C1500 Suburban | Base |
| 1979-1986 | GMC | C1500 Suburban | High Sierra |
| 1979-1986 | GMC | C1500 Suburban | Sierra Classic |
| 1979-1982 | GMC | C1500 Suburban | Sierra Grande |
| 1992-1999 | GMC | C1500 Suburban | SLE |
| 1995-1999 | GMC | C1500 Suburban | SLT |
| 1975-1978 | GMC | C25 | Base |
| 1975-1978 | GMC | C25 | High Sierra |
| 1975-1978 | GMC | C25 | Sierra Classic |
| 1975-1978 | GMC | C25 | Sierra Grande |
| 1975-1978 | GMC | C25 Suburban | Base |
| 1975-1978 | GMC | C25 Suburban | High Sierra |
| 1975-1978 | GMC | C25 Suburban | Sierra Classic |
| 1975-1978 | GMC | C25 Suburban | Sierra Grande |
| 1973-1974 | GMC | C25/C2500 Pickup | Base |
| 1973-1974 | GMC | C25/C2500 Suburban | Base |
| 1979-1986 | GMC | C2500 | Base |
| 1979-1986 | GMC | C2500 | High Sierra |
| 1979-1986 | GMC | C2500 | Sierra Classic |
| 1979-1982 | GMC | C2500 | Sierra Grande |
| 1979-1986 | GMC | C2500 Suburban | Base |
| 1979-1986 | GMC | C2500 Suburban | High Sierra |
| 1979-1986 | GMC | C2500 Suburban | Sierra Classic |
| 1979-1982 | GMC | C2500 Suburban | Sierra Grande |
| 1975-1978 | GMC | C35 | Base |
| 1975-1978 | GMC | C35 | High Sierra |
| 1975-1978 | GMC | C35 | Sierra Classic |
| 1975-1978 | GMC | C35 | Sierra Grande |
| 1967-1974 | GMC | C35/C3500 Pickup | Base |
| 1979-1986 | GMC | C3500 | Base |
| 1979-1986 | GMC | C3500 | High Sierra |
| 1979-1986 | GMC | C3500 | Sierra Classic |
| 1979-1982 | GMC | C3500 | Sierra Grande |
| 1975-1978 | GMC | G15 | Rally |
| 1975-1978 | GMC | G15 | Rally STX |
| 1975-1978 | GMC | G15 | Vandura |
| 1970-1971 | GMC | G15/G1500 Van | Base |
| 1971-1974 | GMC | G15/G1500 Van | Rally |
| 1970-1974 | GMC | G15/G1500 Van | Vandura |
| 1979-1995 | GMC | G1500 | Rally |
| 1983-1984 | GMC | G1500 | Rally Custom |
| 1979-1995 | GMC | G1500 | Rally STX |
| 1979-1995 | GMC | G1500 | Vandura |
| 1975-1978 | GMC | G25 | Rally |
| 1975-1978 | GMC | G25 | Rally STX |
| 1975-1978 | GMC | G25 | Vandura |
| 1970-1972 | GMC | G25/G2500 Van | Base |
| 1971-1974 | GMC | G25/G2500 Van | Rally |
| 1970-1974 | GMC | G25/G2500 Van | Vandura |
| 1979-1995 | GMC | G2500 | Rally |
| 1983-1984 | GMC | G2500 | Rally Custom |
| 1979-1995 | GMC | G2500 | Rally STX |
| 1979-1995 | GMC | G2500 | Vandura |
| 1975-1978 | GMC | G35 | Magnavan |
| 1975-1978 | GMC | G35 | Rally |
| 1975-1978 | GMC | G35 | Rally Camper Special |
| 1975-1978 | GMC | G35 | Rally STX |
| 1975-1978 | GMC | G35 | Vandura |
| 1975-1978 | GMC | G35 | Vandura Special |
| 1970-1971,1974 | GMC | G35/G3500 Van | Base |
| 1971-1974 | GMC | G35/G3500 Van | Rally |
| 1971-1974 | GMC | G35/G3500 Van | Vandura |
| 1979-1995 | GMC | G3500 | Magnavan |
| 1979-1995 | GMC | G3500 | Rally |
| 1979-1995 | GMC | G3500 | Rally Camper Special |
| 1981-1988 | GMC | G3500 | Rally Custom |
| 1979-1995 | GMC | G3500 | Rally STX |
| 1979-1995 | GMC | G3500 | Vandura |
| 1979-1995 | GMC | G3500 | Vandura Special |
| 1973-1991 | GMC | Jimmy | Base |
| 1975-1985 | GMC | Jimmy | High Sierra |
| 1975-1976,1978-1990 | GMC | Jimmy | Sierra Classic |
| 1975-1982 | GMC | Jimmy | Sierra Grande |
| 1978-1982 | GMC | Jimmy | Street Coupe |
| 1969 | GMC | K35/K3500 Pickup | Base |
| 1975-1978 | GMC | P15 | Base |
| 1975-1978 | GMC | P15 | Value Van |
| 1970-1974 | GMC | P15/P1500 Van | Base |
| 1979-1980 | GMC | P1500 | Base |
| 1979-1980 | GMC | P1500 | Value Van |
| 1975-1978 | GMC | P25 | Base |
| 1975-1978 | GMC | P25 | Value Van |
| 1970-1974 | GMC | P25/P2500 Van | Base |
[connect via dynam
ic source]
[connect via dynamic source]
Fast & Reliable Delivery
At NoLimit Accessories Inc., we're committed to getting your order to you quickly and safely. Learn about our shipping times, rates, and delivery options below.
Order Processing Time All orders are carefully processed and prepared for shipment within 1-2 business days. Please note that orders placed on weekends or holidays will be processed on the next business day.
Shipping Rates & Delivery Estimates We offer competitive shipping rates calculated based on your location and order size. Your exact shipping cost and estimated delivery time will be calculated and displayed at checkout before you complete your purchase.
Order Tracking & Shipment Confirmation Once your order ships, you'll receive a Shipment Confirmation email with your tracking number(s). You can use this tracking number to monitor your package's journey. Please allow up to 24 hours for tracking information to become active in the carrier's system.
Damaged or Lost Packages While we take great care in packaging your order, we are not liable for products damaged or lost during shipping. If your order arrives damaged, please contact the shipping carrier directly to file a claim. We're here to help guide you through this process if needed.
International Shipping Currently, we ship to addresses within the United States only. We're working to expand our shipping options in the future.
Customer Support Have questions about your shipment or our shipping policy? Please don't hesitate to contact our customer service team for assistance.
- Made in the USA

