Research 1999 GMC Suburban specs for the trims available. Choose the desired trim / style from the dropdown list to see the corresponding specs.
1500
Brakes
| Rear Drum Diam x Width (in) |
11.15 x 2.75 |
| Brake Type |
Power |
| Brake ABS System |
4-Wheel |
| Brake ABS System (Second Line) |
|
| Disc - Front (Yes or ) |
Yes |
| Disc - Rear (Yes or ) |
|
| Front Brake Rotor Diam x Thickness (in) |
12.50 x 1.26 |
| Front Brake Rotor Diam x Thickness (in) |
11.57 x 1.25 |
| Rear Brake Rotor Diam x Thickness (in) |
|
| Drum - Rear (Yes or ) |
Yes |
| Rear Drum Diam x Width (in) |
13.0 x 2.5 |
Cargo Area Dimensions
| Cargo Area Length @ Floor to Seat 4 (in) |
|
| Cargo Area Length @ Floor to Seat 1 (in) |
97.7 |
| Cargo Area Length @ Floor to Seat 3 (in) |
36.0 |
| Cargo Area Length @ Floor to Seat 2 (in) |
|
| Cargo Area Length @ Floor to Seat 2 (in) |
70.9 |
| Cargo Area Length @ Floor to Seat 3 (in) |
|
| Cargo Area Length @ Floor to Console (in) |
|
| Cargo Volume to Seat 2 (ft³) |
|
| Cargo Volume to Seat 3 (ft³) |
47.5 |
| Cargo Volume to Seat 3 (ft³) |
|
| Cargo Volume to Seat 4 (ft³) |
|
| Cargo Volume to Seat 1 (ft³) |
149.5 |
| Cargo Volume to Seat 2 (ft³) |
96.6 |
| Cargo Box (Area) Height (in) |
40.8 |
| Cargo Box Width @ Wheelhousings (in) |
49.7 |
| Cargo Area Width @ Beltline (in) |
59.3 |
Cooling System
| Total Cooling System Capacity (qts) |
17.1 |
| Total Cooling System Capacity (qts) |
23.8 |
Doors
Electrical
| Cold Cranking Amps @ 0° F (Primary) |
600 |
| Maximum Alternator Capacity (amps) |
105 |
| Cold Cranking Amps @ 0° F (2nd) |
600 |
| Maximum Alternator Capacity (amps) |
140 |
| Maximum Alternator Capacity (amps) |
100 |
| Maximum Alternator Watts |
1200 |
| Cold Cranking Amps @ 0° F (2nd) |
|
| Cold Cranking Amps @ 0° F (Primary) |
770 |
Engine
| Displacement |
5.7L/350 |
| Fuel System |
Turbo-Charged EFI |
| Fuel System |
SFI |
| SAE Net Horsepower @ RPM |
290 @ 4000 |
| SAE Net Horsepower @ RPM |
195 @ 3400 |
| SAE Net Horsepower @ RPM |
255 @ 4600 |
| SAE Net Torque @ RPM |
410 @ 3200 |
| SAE Net Torque @ RPM |
430 @ 1800 |
| SAE Net Torque @ RPM |
330 @ 2800 |
| Engine Oil Cooler |
|
| Engine Oil Cooler |
Yes |
| Engine Order Code |
L29 |
| Engine Order Code |
L65 |
| Engine Order Code |
L31 |
| Engine Type |
Diesel V8 |
| Engine Type |
Gas V8 |
| Displacement |
7.4L/454 |
| Displacement |
6.5L/395 |
Exterior Dimensions
| Rear Door Opening Width (in) |
50.5 |
| Step Up Height - Side (in) |
|
| Step Up Height - Front (in) |
|
| Side Door Opening Width (in) |
|
| Side Door Opening Height (in) |
|
| Rear Door Opening Width (in) |
61.4 |
| Rear Door Opening Height (in) |
40.9 |
| Rear Door Opening Height (in) |
34.1 |
| Ground Clearance, Rear (in) |
6.6 |
| Ground Clearance, Front (in) |
7.1 |
| Ground to Top of Load Floor (in) |
29.2 |
| Overhang, Rear w/bumper (in) |
52.6 |
| Overhang, Front (in) |
35.4 |
| Height, Overall (in) |
71.3 |
| Width, Max w/o mirrors (in) |
76.7 |
| Length, Overall w/rear bumper (in) |
219.5 |
| Wheelbase (in) |
131.5 |
Frame
Fuel Tank
| Aux Fuel Tank Location |
|
| Fuel Tank Location |
Behind Rear Axle |
| Aux Fuel Tank Capacity, Approx (gal) |
|
| Fuel Tank Capacity, Approx (gal) |
42 |
Interior Dimensions
| Third Head Room (in) |
37.9 |
| Third Head Room (in) |
|
| Third Leg Room (in) |
37.2 |
| Third Leg Room (in) |
|
| Third Shoulder Room (in) |
64.3 |
| Third Shoulder Room (in) |
|
| Third Hip Room (in) |
48.5 |
| Third Hip Room (in) |
|
| Second Leg Room (in) |
36.2 |
| Second Shoulder Room (in) |
|
| Second Shoulder Room (in) |
65.0 |
| Second Leg Room (in) |
|
| Second Hip Room (in) |
60.3 |
| Second Hip Room (in) |
|
| Passenger Capacity |
8 |
| Passenger Capacity |
5 |
| Passenger Capacity |
9 |
| Passenger Capacity |
6 |
| Passenger Capacity |
3 |
| Front Head Room (in) |
39.9 |
| Front Leg Room (in) |
41.3 |
| Front Shoulder Room (in) |
65.0 |
| Front Hip Room (in) |
60.5 |
| Second Head Room (in) |
38.9 |
| Second Head Room (in) |
|
Mileage
| EPA Fuel Economy Est - City (MPG) |
14 |
| EPA Fuel Economy Est - Hwy (MPG) |
19 |
| EPA Fuel Economy Est - Hwy (MPG) |
18 |
| EPA Fuel Economy Est - City (MPG) |
15 |
Steering
| Steering Ratio (:1), At Lock |
15.6 |
| Turning Diameter - Wall to Wall (ft) |
48.1 |
| Steering Ratio (:1), On Center |
16.5 |
| Steering Type |
Speed-Sensitive Power |
| Turning Diameter - Curb to Curb (ft) |
43.7 |
Summary
| Body Style |
1500 |
| Body Code |
E55 |
| Body Code |
ZW9 |
| Vehicle Name |
GMC Suburban |
Suspension
| Spring Capacity - Front (lbs) |
3600 |
| Spring Capacity - Front (lbs) |
3800 |
| Spring Capacity - Front (lbs) |
2950 |
| Spring Capacity - Rear (lbs) |
6084 |
| Spring Capacity - Rear (lbs) |
4000 |
| Axle Type - Front |
Independent |
| Axle Type - Rear |
Full-Floating |
| Axle Type - Rear |
Semi-Floating |
| Axle Capacity - Front (lbs) |
3800 |
| Axle Capacity - Front (lbs) |
3400 |
| Axle Capacity - Rear (lbs) |
4000 |
| Axle Capacity - Rear (lbs) |
6084 |
| Axle Ratio (:1) - Front |
|
| Axle Ratio (:1) - Rear |
3.73 |
| Axle Ratio (:1) - Rear |
3.42 |
| Shock Absorber Diameter - Front (mm) |
46 |
| Shock Absorber Diameter - Front (mm) |
32 |
| Shock Absorber Diameter - Rear (mm) |
46 |
| Shock Absorber Diameter - Rear (mm) |
32 |
| Stabilizer Bar Diameter - Front (in) |
1.25 |
| Stabilizer Bar Diameter - Rear (in) |
|
| Spring Capacity - Front (lbs) |
3400 |
| Suspension Type - Rear |
2-Stage Multi-Leaf |
| Suspension Type - Front |
Indep Coil Spring |
Tires
| Front Tire Order Code |
QIZ |
| Front Tire Order Code |
QHM |
| Front Tire Order Code |
QHA |
| Rear Tire Order Code |
QHM |
| Rear Tire Order Code |
QIZ |
| Rear Tire Order Code |
QHA |
| Spare Tire Order Code |
QHM |
| Spare Tire Order Code |
QIZ |
| Spare Tire Order Code |
QHA |
| Front Tire Size |
LT245/75R16E |
| Front Tire Size |
P235/75R15 |
| Rear Tire Size |
LT245/75R16E |
| Rear Tire Size |
P235/75R15 |
| Spare Tire Size |
LT245/75R16E |
| Spare Tire Size |
P235/75R15 |
| Front Tire Capacity (lbs) |
2030 |
| Front Tire Capacity (lbs) |
1763 |
| Rear Tire Capacity (lbs) |
3042 |
| Rear Tire Capacity (lbs) |
1984 |
| Spare Tire Capacity (lbs) |
3042 |
| Spare Tire Capacity (lbs) |
1984 |
| Revolutions/Mile @ 45 mph - Front |
678 |
| Revolutions/Mile @ 45 mph - Front |
721 |
| Revolutions/Mile @ 45 mph - Rear |
678 |
| Revolutions/Mile @ 45 mph - Rear |
721 |
| Revolutions/Mile @ 45 mph - Spare |
678 |
| Revolutions/Mile @ 45 mph - Spare |
721 |
Trailering
| Fifth Wheel Hitch - Max Tongue Wt. (lbs) |
N/A |
| Dead Weight Hitch - Max Trailer Wt. (lbs) |
5000 |
| Dead Weight Hitch - Max Trailer Wt. (lbs) |
2000 |
| Dead Weight Hitch - Max Tongue Wt. (lbs) |
500 |
| Dead Weight Hitch - Max Tongue Wt. (lbs) |
200 |
| Wt Distributing Hitch - Max Trailer Wt. (lbs) |
8000 |
| Wt Distributing Hitch - Max Tongue Wt. (lbs) |
750 |
| Fifth Wheel Hitch - Max Trailer Wt. (lbs) |
N/A |
Transmission
| Trans PTO Access |
|
| Trans Power Take Off |
|
| Clutch Size (in) |
|
| Reverse Ratio (:1) |
2.29 |
| Reverse Ratio (:1) |
2.08 |
| Sixth Gear Ratio (:1) |
|
| Fifth Gear Ratio (:1) |
|
| Fourth Gear Ratio (:1) |
0.70 |
| Fourth Gear Ratio (:1) |
0.75 |
| Third Gear Ratio (:1) |
1.00 |
| Second Gear Ratio (:1) |
1.63 |
| Second Gear Ratio (:1) |
1.48 |
| First Gear Ratio (:1) |
3.06 |
| First Gear Ratio (:1) |
2.48 |
| Trans Description Cont. Again |
Electronic |
| Trans Description Cont. |
Automatic w/OD, |
| Trans Description Cont. |
HD Automatic w/OD, |
| Trans Type |
4 |
| Trans Order Code |
M30 |
| Seventh Gear Ratio (:1) |
|
| Drivetrain |
Rear Wheel Drive |
| Trans Order Code |
MT1 |
| Transfer Case Power Take Off |
|
| Transfer Case Gear Ratio (:1), Low |
|
| Transfer Case Gear Ratio (:1), High |
|
| Transfer Case Model |
|
Vehicle
| Rear Door Type |
Tailgate |
| Rear Door Type |
Panel Doors |
Weight Information
| Gross Axle Wt Rating - Rear (lbs) |
3968 |
| Gross Combined Wt Rating (lbs) |
11,000 |
| Gross Combined Wt Rating (lbs) |
14,500 |
| Gross Combined Wt Rating (lbs) |
12,000 |
| Gross Vehicle Weight Rating Cap (lbs) |
6800 |
| Gross Vehicle Weight Rating Cap (lbs) |
7700 |
| Curb Weight - Rear (lbs) |
2450 |
| Curb Weight - Front (lbs) |
2370 |
| Gross Axle Wt Rating - Rear (lbs) |
6084 |
| Gross Axle Wt Rating - Front (lbs) |
2950 |
| Gross Axle Wt Rating - Front (lbs) |
3600 |
| Gross Axle Wt Rating - Front (lbs) |
3800 |
| Gross Axle Wt Rating - Front (lbs) |
3400 |
| Gross Combined Wt Rating (lbs) |
8,800 |
Wheels
| Front Wheel Size (in) |
16 x 6.5 |
| Front Wheel Size (in) |
15 x 7.0 |
| Rear Wheel Size (in) |
16 x 6.5 |
| Rear Wheel Size (in) |
15 x 7.0 |
| Spare Wheel Size (in) |
16 x 6.5 |
| Spare Wheel Size (in) |
15 x 7.0 |
| Front Wheel Material |
Aluminum |
| Front Wheel Material |
Steel |
| Rear Wheel Material |
Aluminum |
| Spare Wheel Material |
|
| Rear Wheel Material |
Steel |
| Spare Wheel Material |
Steel |
