MAD Helper Springs – RAM ProMaster – HV-138140
Progressive rear helper springs for RAM ProMaster 1500/2500/3500 (2014–present, FWD). Designed for mixed loads: better stance, less sway, no air lines.
Fitment
- Vehicle: RAM ProMaster 1500/2500/3500, 2014–present (Fiat Ducato X250/X290 platform)
- Axle: Rear — helper springs mount next to the main leaf
- Use: daily driving, delivery, trades, light camper gear
- Not for motorhomes
- Approval: TÜV part approval; fitting manual included
Specs
| SKU | HV-138140 |
| Type | Rear helper springs — progressive (variable-load) |
| Shocks | None (compatible with OE or KONI upgrades) |
| Install time | ≈ 45 minutes |
| Set contents | 2 springs + hardware + fitting manual |
| Price | $475 — prices include tax & local import fees; exclude fitting |
Note: Improves support and stability under load. Does not change GVWR or towing ratings.
What you’ll feel
- Less rear sag with tools or parcels onboard
- Reduced sway and roll in crosswinds and turns
- More stable ride without the maintenance of air systems
Install overview
- Support the van safely. Chock wheels.
- Support rear axle and remove lower shock bolts (both sides).
- Lower axle to create clearance. Seat helper springs next to the main leaf per manual.
- Re-raise axle; torque hardware at ride height. Road-test and re-torque after ~100 miles.
