After looking at difference (as opposed to Silverado/Sierra) in overall length, wheelbase, and mostly turning circle, the barches are slowly but surely being won over to the Avalanche as our next tow vehicle. Please don't hesitate to share your trailering observations.HenryJ wrote:I pulled a fair size trailer back in a headwind and it dropped to 13.6 mpg. Maintained 55-75 mph , right at speed limits both ways.
I am pretty happy with that.
That's exactly why we're leaning toward the Avalanche. The price tag is a bit intimidating at first glance but when comparing to a comparably equipped Silverado/Sierra Crew Cab there's very little difference (and might actually be a little cheaper).The comfort and convenience level is a HUGE difference. Lots of room for everyone. Power to spare. Smooth comfortable ride. Heated seats, leather, Bose audio system, sunroof, auto climate control, etc.
Wow. I had no idea there was such a difference. That probably explains my difficulty cutting into a tight parking lots now and then? Maybe it is the strut front suspension on the newer models? That could be where the difference lies. The NNBS Avalanche went to struts where the NBS had a-arms like the Silverado. Maybe not. I just checked and the 2005 Avalanche is listed as having a 43.3 turning circle.barch97 wrote:Edmunds claims over four feet difference in turning circle. 2012 Avalanche LT = 43.0 ft. 2012 Silverado Crew Cab LT = 47.2 ft. (2004 = 46.6 ft.) Not that I'd ever measure it but I suspect that every inch will make a noticeable difference when backing a travel trailer into a tight spot.
The avalanche has tool boxes and a cover that would have to be added with aftermarket parts. You are right that you could add them, but the integrated stuff sure is nice. Durability better too I believe.barch97 wrote:...The price tag is a bit intimidating at first glance but when comparing to a comparably equipped Silverado/Sierra Crew Cab there's very little difference (and might actually be a little cheaper).
Also very encouraging seeing so many for sale with +/- 200,000 miles. Now to find the one that's just right for us.
Here is what I did.
I used a ramp. I pulled my left front tire up on the ramp and took measurements at all four fenders. This was done stock. Then with the sway bar disconnected and with polyurethane bushings installed. The difference from side to side was subtracted, then the difference was added to the rear. The percentages were calculated from there. The percentages did closely mirror the front alone. I wanted to add the rear measurements to allow for some frame twist. It didn't amount to much since the front alone was virtually the same percentages.
If we call disconnected our baseline the stock bushings decreased body roll by 6%. Poly bushings decreased body roll by 23%.
What does this mean? Well, having the sway bar disconnected and running the stock bushings , the body is tipped 6% less than with the bar attached. Once I added the poly bushings this percentage really increases and the body will tip with the frontend 23% more than it would with the bar disconnected. The bar being disconnected then makes a big difference.
This stuff isn't getting any simpler, Brule.HenryJ wrote:......................... If I find a spare bar, I may do some playing?
Sounds good, thanks. I wonder how difficult it would be to add an aftermarket cooler in the future if needed.HenryJ wrote:That said, mine does pretty good with the stock internal cooler. I have been watching trans temps and don't see a need yet.
Could that be as easy to prevent as our CC transfer case vacuum switch fix?Occasional problems on this vehicle are failures of the Front Axle Seals and Transfer Case Encoder Motor. Failure of the Front Axle Seals and Transfer Case Encoder Motor apply to (Four Wheel Drive (4WD) vehicles) only.
It is, although more expensive. The axle seals are pretty easy to change and cheap. No big deal there. You will get lots of warning and have lots of time. The encoder is an easier swap. You do have to pull the front driveshaft, but then three bolts and no leakage later you're done.barch97 wrote:...I'm also a little concerned about edmunds reliability review:Could that be as easy to prevent as our CC transfer case vacuum switch fix?Occasional problems on this vehicle are failures of the Front Axle Seals and Transfer Case Encoder Motor. Failure of the Front Axle Seals and Transfer Case Encoder Motor apply to (Four Wheel Drive (4WD) vehicles) only.
Dexcool problems disappeared with the engine and cooling system redesign on this engine. No worries about that now.
Getting a little nervous as it's an '04 I'm looking at and I'm not as familiar with known issues in these. I suspect it won't be hard to tell if it's got dexcool related trouble but beyond that I'm in the dark.
GT4 - 3.73:1 rear axle gear ratio
G80 - Limited slip differential
K68 - 105 amp alternator
NZZ - Offroad skip plates
VR4- Trailer hitch weight distribution platform
Z71 - Offroad package
Z82 - Trailer Provisions Special Equipment, H.D.
I think, with a few upgrades (brake controller, tow mirrors, air-lift coil helper, etc), this'll do a fine job towing our travel trailer. May need to upgrade the gears as well but, we'll see how it goes. I don't want to sacrifice mpg when not towing without giving it a chance first. I'm going to take a closer look soon.
I'm hoping the leaf springs will eliminate the need for airbags. Maybe helper springs instead if I get too much sag with the trailer attached.HenryJ wrote:They are much the same. The Avalanche (Suburban, Tahoe) ride a little smoother with the rear coil suspension. Airbags are easier to install too.
Is there an easy way for owners to check which recalls have been performed?HenryJ wrote:2004-2006 had some instrument cluster recalls for the stepper motor failures. Also a problem with brittle wiring in the engine harness leading to reduced engine power limp mode operation.
Yup, got that too.HenryJ wrote:Make darn sure it has the G80 diff. The open diff had soft side gears and was a real problem.
I was just looking under the hood for the trailer relay and noticed "DR44G" alternator although the RPO says 105 amp. Maybe that plastic bushing already failed and someone saved me the trouble of upgrading.HenryJ wrote:Next is to go to the 145 amp DR44G alternator. the 105amp has plastic bushings supporting the bearing. A problem that will surface
Sounds like the good onebarch97 wrote:...I was just looking under the hood for the trailer relay and noticed "DR44G" alternator although the RPO says 105 amp. Maybe that plastic bushing already failed and someone saved me the trouble of upgrading.
Sounds like the dummy. Probably need to replace it with a Maxi-fuse. That is all you need to provide the trailer house batteries with power.In any case, I've got a red "B+" in "stud 1", Is that just a dummy to fill the opening or has this already been done for me as well? I'm hoping that since it's got all the RPOs for trailering and towing that previous owner plugged in the factory relay. If only he had left his brake controller, I'd be ready for camping.
I appreciate the offer but it's just as easy for me to back the truck up to the trailer and see if there's power. I'm pretty sure you're right. After seeing some pics online, the red one is likely the dummy place holder. I need the green 40amp B+.HenryJ wrote:All this stuff is a little fuzzy , as it was done a very long time ago. I can run out and look if you think I am wrong. or need further clarification
Good plan. Ours is 100% LED house lighting now. I have done what I can to reduce our power consumption.barch97 wrote:... I'll never hit the road without a self contained power source again.
I am right there with ya. A little shocked to be trying something else. It has bee a while since I have tried a different tire on my personal rig. Way back to the Yokohama AT and MT days.blaz wrote:WoW! I never thought you would try a different tire. So many new options out these days and lesser price doesn't always mean lesser quality. I look forward to the pics and reviews.
HenryJ wrote:Spent the better part of the day dialing in the speedometer. Long story, but the Bullydog needed an update and that presented all sorts of issues. Ended up starting from scratch and pulling eight fuses everytime I had to make a change. LONG DAY...
It is close enough now.
Perhaps a little Angry OrchardF9K9 wrote:What do you drink that isn't "screw off"? Holding out on me??
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