Chevrolet Suburban
2000–06 1500
Factory gearing, tires, angles and brakes for the Suburban, 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
1500 LS/LT 4x4 (16-inch), 3.73s, from P265/70R16| Tire | Height | Under the diffs | Speedo at 65 | RPM at 65 | Gears for daily | Open |
|---|---|---|---|---|---|---|
| 265/75R16 | 31.6 in | +0.5 in | 63 mph | 1,802 | Keep 3.73s | Open → |
| 285/75R16 | 32.8 in | +1.1 in | 61 mph | 1,738 | 4.1 | Open → |
| 33x10.50R16 | 33.0 in | +1.2 in | 60 mph | 1,729 | 4.1 | Open → |
| 255/85R16 | 33.1 in | +1.2 in | 60 mph | 1,725 | 4.1 | Open → |
| 315/75R16 | 34.6 in | +2.0 in | 57 mph | 1,649 | 4.56 | Open → |
| 35x12.50R16 | 35.0 in | +2.2 in | 57 mph | 1,630 | 4.56 | Open → |
Stock turns 1,864 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.
Size
- Wheelbase
- 130 in
- Front overhang
- 37 in
- Rear overhang
- 52.4 in
- Height
- 76 in
- Body
- SUV
- Stock tires
- P265/70R16, P265/70R17
Transmissions and low range
- 4-speed automatic (4L60-E)
- 3.06 · 1.63 · 1 · 0.7
- 4-speed automatic (4L80-E)
- 2.48 · 1.48 · 1 · 0.75
- Low range, nv246
- 2.72:1
- Low range, nv263
- 2.72:1
Axles
- Front
- 1500: GM 8.25 in IFS; 2500: GM 9.25 in IFS
- Rear
- 1500: GM 8.6 in; 2500: GM 14-bolt 10.5 in full-float
- 3.73 ratio
- 1500 LS/LT 4x4 (16-inch), 1500 Z71 (17-inch)
- 4.1 ratio
- 1500 LS/LT 4x4 (16-inch), 1500 Z71 (17-inch)
- Ratios made for it
- 4.1 · 4.56 · 4.88
Brakes
- Front rotor
- 12.00 in, 305 mm
- Front caliper piston
- 51.0 mm
- Rear rotor
- 12.80 in, 325 mm
- Rear
- disc (vented, 325 x 20 mm)
Suspension
- Front
- double wishbone IFS, torsion bars
- Rear
- 5-link (4 links plus track bar), coil springs, Autoride air-assist optional
- Rear layout
- Factory 4-link
Fuel economy
- EPA highway
- 17 mpg
- Rated years
- 2000–2006, 4WD
Frame
- Rail top at the rear axle
- 28.5 in off the ground
- Measured on
- P245/75R16
Brake upgrades
What bigger tires need →- Baer 6T front brake kit 4301682B-2 (GM 1500 trucks 1999-on, SUVs 2000-on)+15% brake torque12.0 → 13.5 in rotor · 6-piston · 17 in wheels or bigger · $1,900Baer list price (black calipers).
Aftermarket bumpers
6 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 Suburban sees how it does on their tires and lift.
Front 5
- Chassis Unlimited 1999-2002 Chevy 1500 & 2000-2006 TAHOE/SUBURBAN Octane Front Winch Bumper$1,907 · winch ready
- Frontier Truck Gear Frontier 300-29-9005 Chevy Suburban 2000-2006 Original Front Bumper$1,761
- Iron Bull Bumpers 2000-2006 Chevrolet Tahoe /Suburban (5 OR 6 LUG ONLY) Front Bumper$1,700
- Ranch Hand FSC99HBL1 2000-2006 Chevy Suburban 1500 and Tahoe Front Bumper$1,868
- TrailReady 10301B Chevy Silverado 1500 1999-2002 Extreme Duty Front Bumper Winch Ready Base$3,654 · winch ready
Every calculator, set up for the Suburban
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.