Chevrolet Suburban
2007–14 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 LT 4WD, 3.08s, from P265/70R17| Tire | Height | Under the diffs | Speedo at 65 | RPM at 65 | Gears for daily | Open |
|---|---|---|---|---|---|---|
| 285/70R17 | 32.7 in | +0.6 in | 63 mph | 1,440 | Keep 3.08s | Open → |
| 33x10.50R17 | 33.0 in | +0.7 in | 62 mph | 1,427 | Keep 3.08s | Open → |
| 33x12.50R17 | 33.0 in | +0.7 in | 62 mph | 1,427 | Keep 3.08s | Open → |
| 255/80R17 | 33.1 in | +0.7 in | 62 mph | 1,425 | Keep 3.08s | Open → |
| 285/75R17 | 33.8 in | +1.1 in | 61 mph | 1,392 | 3.73 | Open → |
| 315/70R17 | 34.4 in | +1.4 in | 60 mph | 1,371 | 3.73 | Open → |
| 35x11.50R17 | 35.0 in | +1.7 in | 59 mph | 1,346 | 3.73 | Open → |
| 35x12.50R17 | 35.0 in | +1.7 in | 59 mph | 1,346 | 3.73 | Open → |
| 37x11.50R17 | 37.0 in | +2.7 in | 56 mph | 1,273 | 3.73 | Open → |
| 37x12.50R17 | 37.0 in | +2.7 in | 56 mph | 1,273 | 3.73 | Open → |
Stock turns 1,490 rpm at 65 in top gear. Flotation sizes are nominal; most measure a little short mounted.
Trims
2 we have figures for| Trim | Tire | Transmission | Axle | Angles | Clearance | Open |
|---|---|---|---|---|---|---|
| 1500 LT 4WD | P265/70R17 | 4-speed automatic, 6-speed automatic | 3.08 / 3.42 | 16.7 · ~20.3 · 20.9 | 9.0 in | Use → |
| 1500 LT Z71 | P265/65R18 | 4-speed automatic, 6-speed automatic | 3.08 / 3.42 | 16.74 · ~20.7 · 20.93 | 9.2 in | Use → |
~ Estimated from the wheelbase and ground clearance. No maker has published it for this truck yet.
Size
- Wheelbase
- 130 in
- Front overhang
- 39.4 in
- Rear overhang
- 53.1 in
- Height
- 76 in
- Body
- SUV
- Stock tires
- P265/65R18, P265/70R17
Transmissions and low range
- 4-speed automatic (4L60-E)
- 3.06 · 1.63 · 1 · 0.7
- 6-speed automatic (6L80)
- 4.03 · 2.36 · 1.53 · 1.15 · 0.85 · 0.67
- 6-speed automatic (6L90)
- 4.03 · 2.36 · 1.53 · 1.15 · 0.85 · 0.67
- Low range, at2
- 2.72:1
- Low range, at2hd
- 2.72:1
Axles
- Front
- 1500: GM 8.25 in IFS; 2500: GM 9.25 in IFS
- Rear
- 1500: GM 8.6 or 9.76 in; 2500: AAM 11.5 in or GM 14-bolt
- 3.08 ratio
- 1500 LT 4WD, 1500 LT Z71
- 3.42 ratio
- 1500 LT 4WD, 1500 LT Z71
- Ratios made for it
- 3.73 · 4.1 · 4.56
Brakes
- Front rotor
- 12.99 in, 330 mm
- Front caliper piston
- 51.0 mm
- Rear rotor
- 13.58 in, 345 mm
- Rear
- disc (vented, 345 x 20 mm)
Suspension
- Front
- double wishbone IFS, coilovers
- Rear
- 5-link (4 links plus track bar), coil springs, Autoride air-assist optional
- Rear layout
- Factory 4-link
Fuel economy
- EPA highway
- 20 mpg
- Rated years
- 2007–2014, 4WD
Brake upgrades
What bigger tires need →- Baer 6T front brake kit 4301682B-2 (GM 1500 trucks 1999-on, SUVs 2000-on)+5% brake torque13.0 → 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 4
- Buckstop C6CLS Chevy Tahoe 1500 and Suburban 2500 2007-2014 Classic 1 Front Bumper Winch Ready with Tow Hooks$3,772 · winch ready
- Chassis Unlimited 2007-2014 Chevy TAHOE/SUBURBAN/AVALANCHE/YUKON Octane Front Winch Bumper$1,907 · winch ready
- Iron Bull Bumpers 2007-2014 Chevrolet Tahoe / Suburban 1500 Front Bumper$1,700
- TrailReady 10650B Chevy Avalanche 2007-2014 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.