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Chevrolet Avalanche 2500 vs GMC Sierra 1500

Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.

Vehicles

Chevrolet logo

2006 Chevrolet Avalanche 2500

GMC logo

2026 GMC Sierra 1500

Overview

SpecChevrolet Avalanche 25002500 LSGMC Sierra 1500Pro
Selected trim2500 LSPro
Body styleTruck (Crew Cab)Truck (Regular Cab)
Drivetrainfour wheel driverear wheel drive
Fuel typeregular unleadedregular unleaded
Transmission4-speed automatic8-speed shiftable automatic
Engine typegasgas
Model year20062026

Pricing & market

SpecChevrolet Avalanche 25002500 LSGMC Sierra 1500Pro
MSRP$38,320$38,300 (best)
Lowest listing price—$30,489 (best)
Median listing price—$67,273 (best)
Highest listing price—$89,945 (best)
For sale now040 (best)

Fuel economy & range

SpecChevrolet Avalanche 25002500 LSGMC Sierra 1500Pro
Combined MPG—20 MPG (best)
City MPG—18 MPG (best)
Highway MPG—21 MPG (best)
Fuel tank37 gal (best)24 gal

Performance

SpecChevrolet Avalanche 25002500 LSGMC Sierra 1500Pro
Horsepower325 hp (best)310 hp
Torque447 lb-ft (best)430 lb-ft
Engine size8.1 L (best)2.7 L
CylindersV8I4

Size & capability

SpecChevrolet Avalanche 25002500 LSGMC Sierra 1500Pro
Seating6 seats (best)3 seats
Doors4 (best)2
Towing capacity12,000 lbs (best)9,000 lbs
Payload2,072 lbs2,230 lbs (best)
Curb weight6,528 lbs4,440 lbs (best)
Ground clearance8.6 in (best)7.9 in
Wheelbase130 in (best)126 in
Length221.6 in (best)211 in
Width79.8 in81.2 in (best)
Height73.6 in75.7 in (best)

Safety & recalls

SpecChevrolet Avalanche 25002500 LSGMC Sierra 1500Pro
NHTSA overall—5 / 5 ★ (best)
Frontal crash (driver)—5 / 5 ★ (best)
Frontal crash (passenger)—5 / 5 ★ (best)
Side crash (driver)—5 / 5 ★ (best)
Side crash (passenger)—Not Rated
Side pole—5 / 5 ★ (best)
Rollover—4 / 5 ★ (best)
Open recalls (YMM scope)None reported (best)2

Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.

Trim overview

All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.

TrimChevrolet Avalanche 2500GMC Sierra 1500
1

2500 LS

$38,320 MSRP(Currently comparing)

Pro

$38,300 MSRP(Currently comparing)

2—

Pro

$38,500 MSRP

3—

Pro

$41,600 MSRP

4—

Pro

$44,200 MSRP

5—

Pro

$42,900 MSRP

6—

Pro

$43,100 MSRP

7—

Pro

$44,900 MSRP

8—

Pro

$47,500 MSRP

9—

Pro

$47,800 MSRP

10—

SLE

$48,700 MSRP

11—

SLE

$51,300 MSRP

12—

SLE

$52,000 MSRP

13—

SLE

$54,600 MSRP

14—

SLE

$54,900 MSRP

15—

Elevation

$50,500 MSRP

16—

Elevation

$53,300 MSRP

17—

Elevation

$50,800 MSRP

18—

Elevation

$53,600 MSRP

19—

Elevation

$53,800 MSRP

20—

Elevation

$56,600 MSRP

21—

Elevation

$56,900 MSRP

22—

SLT

$55,100 MSRP

23—

SLT

$58,200 MSRP

24—

SLT

$58,900 MSRP

25—

Denali

$66,100 MSRP

26—

Denali

$69,400 MSRP

27—

Denali

$69,900 MSRP

28—

AT4

$67,000 MSRP

29—

AT4

$67,500 MSRP

30—

AT4X

$79,600 MSRP

31—

Denali Ultimate

$84,400 MSRP

Live inventory

Chevrolet Avalanche 2500 vs GMC Sierra 1500 FAQ

Which is better: 2006 Chevrolet Avalanche 2500 or 2026 GMC Sierra 1500?
It depends on priorities. OpenDealer compares 2006 Chevrolet Avalanche 2500 vs 2026 GMC Sierra 1500 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
Which costs less: 2006 Chevrolet Avalanche 2500 or 2026 GMC Sierra 1500?
Based on starting MSRP, the 2026 GMC Sierra 1500 starts lower at $38,300. Live GMC Sierra 1500 listings start at $30,489.
Which has better startingMsrp: 2006 Chevrolet Avalanche 2500 or 2026 GMC Sierra 1500?
The 2026 GMC Sierra 1500 leads on startingMsrp in this comparison (38,300).
Which has better combinedMpg: 2006 Chevrolet Avalanche 2500 or 2026 GMC Sierra 1500?
The 2026 GMC Sierra 1500 leads on combinedMpg in this comparison (23).
Which has better horsepower: 2006 Chevrolet Avalanche 2500 or 2026 GMC Sierra 1500?
The 2026 GMC Sierra 1500 leads on horsepower in this comparison (420).
Which has better maxTowingLbs: 2006 Chevrolet Avalanche 2500 or 2026 GMC Sierra 1500?
The 2026 GMC Sierra 1500 leads on maxTowingLbs in this comparison (13,300).
How do the NHTSA safety ratings compare for 2006 Chevrolet Avalanche 2500 vs 2026 GMC Sierra 1500?
NHTSA overall crash-test ratings in this comparison: GMC Sierra 1500 (5/5 NHTSA overall).