• 23"
    Front travel
  • 28"
    Rear travel
  • 120"
    Wheelbase
  • 90"
    Overall width
  • 200L
    Fuel capacity
  • 42"
    Max tyre
The platform

Built around the front end


The engine sits mid-chassis to centralise mass, for a more balanced, controlled car across all terrain. Up front, the super narrow diff gives the IFS 23" of travel. At the rear, a braced Spidertrax 4" housing on 7075 trailing arms and lower links gives 28".

IFS Advanced Roller, side profile.
IFS Advanced Roller, side profile.
Specifications

Platform specifications

Class
Ultra4, Unlimited 4800
Layout
Mid-engine
Chassis
2" TIG-welded 4130 chromoly, CAD designed
Front suspension
Davimac IFS, 23" travel
Rear suspension
Spidertrax 4" housing, 7075 trailing arms and lower links, 28" travel
Wheelbase
120"
Overall width
90"
Front diff
Davimac Super Narrow 10", billet 7075 housing
Steering
Howe TT rack with servo
Fuel
Custom Pyrotect 200 L cell
Engine
Suits LS platform
Transmission
Suits 4L80e or TH400
Tyres
Up to 42"
Panels
Aluminium, Dzus fastened

These are platform specifications. What comes with your car depends on the stage you choose; check each stage below.

Stages

What's included

Pick a stage to see exactly what you get and what you'll need to supply.

Stage 4 of 4

IFS Advanced Roller

Our most complete stage. Add your drivetrain, shocks and tyres. It's an advanced roller, not a complete race car.

Included

  • 2" TIG-welded 4130 chassis with the IFS bulkhead kit
  • Davimac Super Narrow 10" 3rd member
  • 7075 uprights, upper A-arms and tie rods; TIG-welded 4130 lower A-arms
  • 300M 30 series 56 spline outer stub axles and 40 spline 300M axles
  • Howe TT steering rack, steering servo, wheel, quick release and column
  • TIG-welded Spidertrax 4" housing with Pro Series unit bearings
  • 7075 trailing arms and rear lower links
  • FK rod ends and bearings, 12.9 hardware
  • Aluminium interior and exterior panels, TIG-welded tabs and Dzus fasteners
  • Seat mounts and fabricated brake pedal
  • 35 spline sway bar with 7075 arms
  • Biz400 engine and transmission guard, 5/8" HDPE skid plates
  • Custom Pyrotect 200 L fuel cell with stainless straps
  • Stainless exhaust to suit LS
  • Mounts for transfer case, battery, winch, radiator, limit straps, steering reservoir and accelerator

You supply / not included

  • LS platform engine
  • 4L80e or TH400 transmission
  • SCS transfer case
  • Gearworks HP10 rear 3rd
  • 2.5 coilovers and bump stops
  • 3.5 front and 4.0 rear bypasses
  • Tyres (up to 42")

Inclusions as listed by Dialed Off-Road. Pricing and options on enquiry.

Davimac Motorsports

Ultra4 chassis and IFS components, designed and machined in Australia.

Enquire

Builds and sales through Dialed Off-Road.

© 2026 Davimac MotorsportsPrivacy policy