Coil Spring Buffer Size E - Front-Rear Suspension Booster

Our review of the Coil Spring Buffer Size E covers whether this kit is a sensible upgrade for trucks and full-size SUVs. The bottom line: this pair of DuraTPE rubber spring spacers is for owners who need a modest, reliable lift and firmer spring support to reduce nose dive and prevent coil sag. Installation is straightforward on many vehicles and the thermoplastic rubber construction aims to resist oil, salt and UV, so the main reason to buy is for a simple, durable way to lift and stabilize a heavier vehicle without replacing springs or shocks.

Key Features

• Size E fitment: Designed for vehicles whose lifted, unloaded coil spring gap measures about 0.85 to 1.1 in, giving a clear selection guideline to match your car.
• Vehicle application: Intended for trucks and full-size SUVs, the spacer can provide a lift from about 0.2 to 1.5 in depending on vehicle weight and modifications.
• Durable material: Made from DuraTPE thermoplastic rubber that resists abrasion, oil, salt, gravel and UV to extend spacer and coil life.
• Reinforced design: The full ring spacer supports the coil and shock absorber, reducing suspension noise and helping prevent coil sag over time.
• Simple package: Sold as a two-piece pack per axle, making it easy to add front and rear support without complex parts swaps.

Who It's For

The Coil Spring Buffer Size E is best for truck and full-size SUV owners who want a modest lift and stiffer support without installing new springs or changing shocks. It suits drivers who carry weight, tow occasionally, or want to reduce nose dive under braking and improve perceived stability.

It is less suited to drivers seeking a large suspension overhaul, extreme lift heights, or a plush comfort-focused ride; some owners report the altered stiffness can feel firmer or slightly bouncy depending on vehicle and prior suspension condition.

Pros & Cons

Pros

• Easy to install on many vehicles, often without removing the spring from the car.
• Provides a measurable lift and reduces nose dive for heavy loads or towing.
• DuraTPE material resists oil, salt and UV for longer service life.

Cons

• Some users report a stiffer ride feel; ride quality can vary with vehicle and mounting.

Specifications

Product Size	Size E (coil gap 0.85-1.1 in)
Material	DuraTPE thermoplastic rubber
Intended Vehicles	Trucks and full-size SUVs
Lift Height	Approximately 0.2 to 1.5 in depending on weight/mods
Package Contents	2 pieces per pack (front or rear)
Design	Full ring rubber spacer to reinforce coil and shocks

Our Verdict

The Size E coil spring buffer is a practical, cost-effective option for owners of trucks and full-size SUVs who want modest lift and added suspension support. With durable DuraTPE construction and easy fitment guidance, it improves stability and reduces sag for loaded vehicles, though buyers should accept a firmer ride tradeoff in some setups.

Frequently Asked Questions

How do I know if Size E is correct?
Measure the coil spring gap while the vehicle is lifted and unloaded; Size E fits gaps between about 0.85 and 1.1 in.

How much lift will this spacer provide?
Lift varies by vehicle weight and modifications but typically ranges from about 0.2 to 1.5 in; combining with rubber block boosters can increase lift.

Will it affect ride quality?
Yes, many users notice firmer response and reduced nose dive, though some report a slightly bouncy feel depending on the vehicle.