I recently bought a used '04.5 GMC LLY and plan on using it mainly to tow an Arctic Fox 5th wheel, about 10K# loaded. I'm hoping this truck will last longer than I do. The last GM diesel I owned was one of the ill-fated 350 gas conversions from the late 70s. Swore I'd never buy another GM diesel product, but I think the Isuzu/Allison combo is hard to beat. I'm hoping this forum will help in the proper care & feeding of my "new" truck. Even though opinions are like.....well, you know.... I welcome any and all ideas on keeping it running forever.
__________________ 2004.5 GMC SLT 4X4 crew cab long bed LLY Ally 5 speed K&N stock ride height stock wheels, generic 265/75-16s, Ride Rite air bags, TT accordion mirrors, leather, DVD, dual 10 way butt warmers (basic ol' man truck) 39K miles so far, LBZ turbo inlet mod, stock tune so far, B&W turnover, B&W Companion, so far, I haven't created any problems SO FAR...........
Used as a dog taxi and to tow our Arctic Fox 24 5N 5th wheel
My other car is a 1963 Studebaker R2 supercharged Hawk. My other, OTHER car is an '08 Honda Civic Hybrid...
Welcome, I live over in Madras. For what you want to do, a few basic things will greatly help your truck both in performance, longivity, mpg. First, do the LBZ mouth piece mod, it will make a world of difference in the truck's performance. Put on an after market exhaust, I'd get rid of the cat too but it's a personal preference. Add a exhaust temp gauge. Very important to see what the exhaust temps are, even on a stock truck. Since you are not going to do too much to your truck, I'd get a good tuner, one that will add some power but increase you fuel economy, it's been along time since I ran a tuner, (I use EFI live) so someone who has the lastest knowledge of them will have to chime in. With these mods your truck will run cooler, fan won't come on near as often and you will be much happier. I did these mods to a friends truck, (he also drives like a little old lady) and he gets up to 14mpg towing his 34' Montana 5th wheel. Good luck
__________________ 06 Chev LBZ EC/SB 4x4 White Out Big MPI twins, full built motor, ATP Tuned my daily driver
02 GMC RC 2x4 WT, this winter's Prostreet project
02 GMC RC 4x4 Maxed Out Racing Prostreet/Superstreet race truck, Current NHRDA Superstreet Record holder, 10.03, 138.44, 2009 NHRDA Region I Prostreet & Superstreet Champion, 2009 NHRDA Western Regional Prostreet Champion and Super Street Co-Champion. best to date 9.801, 140.38 Boise, 10/10/09
Idaho Rob driving Max'd Out Racing Subman, MPI, ATP
Ick... the dreaded 5.7 diesel. What a waste of perfectly good iron that was eh? Glad to see you've reconsidered, as most everyone around will agree with you about the Duramax/Allison combo.
__________________ - Kevin 2003 Sierra 2500HD LB7
SuperChips Flashpaq
Straight-piped and resonator plugged When I sit in my truck, does that make it MODded??
Got questions? Help us all out by filling out your signature with your ride's year, make model, and any modifications you've made.
__________________ James
TyreBoyz Pulling Team
Pulling Truck called Late Nights
Puller/DD=04 LLY Reg Cab 2500HD,EFILive'd,Built Tranny and a fe fuel upgrades!
Business Truck
06 LBZ 2500 CC SB SRW,EFILive'd and a Built Tranny
DD/Beat Around
03 5.3L 1500 EC SB,Hypertech,Upgraded Tranny,Exhaust and CAI
Economy Saver
02 VW Jetta TDI,Stock for now but looking at a Chip,Nozzles and CAI!
tricycles = teaching childern from a early age that front wheel drive sucks
__________________ Jim
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2003 Chevy 2500hd crew cab 4x4, D/A
Ready Lift Torsion keys up Front, and SuperLift Add-A-Leaf in the rear
285/65-18's Hankook's on 18" Predator rims
4" Magnaflow Exhaust
Autometer Pyro/Boost Gauge in overhead mount
Modified factory air box
Ported Turbo Horn
EFI LIVE V2 www.performancetruckproducts.com
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