2026 GMC Sierra 1500 SLT Towing 2015 Forest River RV Rockwood Signature Ultra Lite 8289ws
This build shows the 2026 GMC Sierra 1500 SLT (13,100 lb towing capacity) paired with the 2015 Forest River RV Rockwood Signature Ultra Lite 8289ws (8,082 lbs dry weight). With 97 lbs of cargo, this combination is within the 80% safe towing guideline.
Half-Ton Pickup
2026 GMC
Sierra 1500 SLT
5.3L V8 · 4WD
Vehicle image
coming soon
coming soon
Travel Trailer
2015 Forest
River RV Rockwood Signature Ultra Lite 8289ws
31' 11" Length · Sleeps 4
Towing Capacity
13,100 lbs
Max Towing Capacity
8,388 lbs
Total Tow Weight (RV + Cargo)
4,712 lbs
Remaining Capacity
Tow Weight Breakdown
Total: 8,388 lbs
RV Dry Weight
8,082 lbs
Base trailer weight
Fresh Water
167 lbs
50% of 40 gal tank
Propane
42 lbs
100% capacity
RV Cargo
97 lbs
Gear inside trailer
Payload Capacity (Weight ON Truck)
Truck Capacity: 1,960 lbs
Using: 1,850 lbs
Tongue Weight
1,337 lbs
Actual hitch weight
Passengers
410 lbs
3 people in truck
Truck Bed Cargo
103 lbs
Hitch equipment
Gear & Cargo
In Truck: 53 lbs
In Trailer: 97 lbs
Fresh Water
50% (167 lbs)
Propane
100% (42 lbs)
In Truck Bed
53 lbs
Ice
20 lbs
Adds to payload capacity
Estimated Fuel Economy
17
Solo MPG
13.4
Towing MPG
-21%
$26.12
Per 100 Miles
@ $3.50/gal
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Create Your BuildVehicle Specs
Full Specs →2026 GMC Sierra 1500 SLT
Max Towing
13,100 lbs
80% Guideline
10,480 lbs
Payload
1,960 lbs
MPG
17 combined
Engine
5.3L V8
RV Specs
Full Specs →2015 Forest River RV Rockwood Signature Ultra Lite 8289ws
Dry Weight
8,082 lbs
GVWR
9,350 lbs
Length
31' 11"
Sleeps
4
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