Land Rover Discovery
Series I, 1989–98
Factory gearing, tires, angles and brakes for the Discovery, and what the usual upgrades do to it. Every number is from the maker's own figures unless the calculators say otherwise. A few figures here are still waiting on a factory document; the calculators mark them.
Tire upgrades, worked out
3.9 V8 manual (US 1994-98), 3.54s, from 235/70R16| Tire | Height | Under the diffs | Speedo at 65 | RPM at 65 | Gears for daily | Open |
|---|---|---|---|---|---|---|
| 265/75R16 | 31.6 in | +1.3 in | 59 mph | 1,789 | 4.11 | Open → |
| 285/75R16 | 32.8 in | +1.9 in | 57 mph | 1,724 | 4.11 | Open → |
| 33x10.50R16 | 33.0 in | +2.0 in | 57 mph | 1,716 | 4.11 | Open → |
| 255/85R16 | 33.1 in | +2.1 in | 57 mph | 1,712 | 4.11 | Open → |
| 315/75R16 | 34.6 in | +2.8 in | 54 mph | 1,636 | 4.75 | Open → |
| 35x12.50R16 | 35.0 in | +3.0 in | 54 mph | 1,618 | 4.75 | Open → |
Stock turns 1,955 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.
Trims
5 we have figures for| Trim | Tire | Transmission | Axle | Angles | Clearance | Open |
|---|---|---|---|---|---|---|
| 3.9 V8 manual (US 1994-98) | 235/70R16 | R380 5-speed | 3.54 | 35 · 33 · 29 | 8.1 in | Use → |
| 3.9/4.0 V8 automatic (US 1994-96) | 235/70R16 | ZF 4HP22 4-speed automatic | 3.54 | 39 · 33 · 29 | 8.1 in | Use → |
| 4.0 V8 automatic (US 1997-98, brochure tyre) | 235/75R16 | ZF 4HP22 4-speed automatic | 3.54 | 35 · 33 · 29 | 8.1 in | Use → |
| 200Tdi manual (1989-94, RoW) (205R16 tires) | 29.2 | LT77 5-speed | 3.54 | 39 · 33 · 29 | 8.3 in | Use → |
| 300Tdi manual (1994-98, RoW) | 235/70R16 | R380 5-speed | 3.54 | 39 · 33 · 29 | 8.3 in | Use → |
Size
- Wheelbase
- 100 in
- Front overhang
- 32.4 in
- Rear overhang
- 46.3 in
- Height
- 77 in
- Body
- Short wheelbase SUV
- Stock tires
- 235/70R16, 235/75R16, 29.2
Transmissions and low range
- LT77 5-speed (200Tdi)
- 3.692 · 2.132 · 1.397 · 1 · 0.77
- R380 5-speed (3.9 V8, 1994-98)
- 3.321 · 2.132 · 1.397 · 1 · 0.732
- R380 5-speed (300Tdi)
- 3.692 · 2.132 · 1.397 · 1 · 0.77
- ZF 4HP22 4-speed automatic
- 2.48 · 1.48 · 1 · 0.728
- Low range, lt230
- 3.32:1
Axles
- Front
- Rover 3.54 spiral bevel, enclosed CV (10-spline, 24-spline from 1994)
- Rear
- Rover 3.54
- 3.54 ratio
- All trims
- Ratios made for it
- 3.75 · 4.11 · 4.75
Brakes
- Front rotor
- 11.73 in, 298 mm
- Front caliper piston
- 41.0 mm
- Rear rotor
- 11.42 in, 290 mm
- Rear
- disc (solid)
Suspension
- Front
- radius arms with panhard rod, coil springs
- Rear
- two trailing links plus upper A-frame, coil springs
- Rear layout
- Factory 3-link
Fuel economy
- EPA highway, automatic
- 15 mpg
- EPA highway, manual
- 15 mpg
- Rated years
- 1994–1998, 4WD
Aftermarket bumpers
4 listedMakers almost never publish angles, bottom heights or how far a bumper tucks, so these fill in as owners measure them. Measured yours? Add it on the rig page and every owner of this Discovery sees how it does on their tires and lift.
Front 3
- ARB Deluxe Winch Bull Bar, 1994-1998 Discovery I (no SRS)$1,646 · winch ready
- Fabryka 4x4 Front Bumper Land Rover Discovery Iwinch ready
- Terrafirma Winch Bumper for Discovery 1winch ready
Every calculator, set up for the Discovery
Source: auto-brochures.com.
Use at your own risk. These calculators are here to help you plan and to inform your decisions, not to sign off on a build. Many numbers are estimates worked out from factory figures, and some factory figures are not yet confirmed. Check every number against your own truck, its manuals and a qualified shop before you buy parts, cut, weld, lift, regear or drive on it. Long Range Desert Tools is not liable for anything you do based on these calculators or their results. The full terms are in our policies.