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General Information

Year
2007
Make
GMC
Model
Sierra Classic 2500HD SLT CC SB
Color
White
Packages
All
History
This vehicle was purchased because we couldn't find a half-ton towable travel trailer that met our criteria for quality and load capacity. By default, we were forced into moving up to a fifth wheel trailer, 15,500# GVWR, and trading our much liked Nissan Titan on a HD pick-up.

By adding Air Lift 5000 auxiliary springs, upsizing the tires to 265/75 QR16, the OE size for the 3500HD, and spec'ing the optional (for gassers) 4.10:1 gears, we achieved a greater tow capacity than 3500HD DuraMax with a much smoother ride when solo.

We are now looking to move up to a heavier 5W trailer so must either buy a new Ram HD or swap a Cummins 6.7 CR for the BigBlock 8.1L.

We like the latter alternative if it can be done profssionally and for a reasonable cost.
2007 GMC Sierra Classic 2500HD SLT CC SB (White)

Modifications

Drivetrain
Volant Powercore CAI, NGK Iridium Gapped @.045,
Interior
Tekonsha P3 Trailer Brake Control, Garmin 305 GPS w/ % Grade & Altimeter,
Exterior
PullRite SuperGlide slider 5W Hitch, , Tow/RVTire Monitor, Line-X, Retrax Tonneau w/ Electric Lock, Electric Tailgate Lock, EZ Down Tailgate Dampener, SS Hood Deflector, Bushwacker Rail & Tailgate Caps, Husky Molded Spash Guards, Westin Molded Step Boards w/ Lights
Suspension
Airlift 5000 Assist Springs w/ Auto Leveller,
Wheel and Tire
Michelin LTX M&S LT265R16E RWL,

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