Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
DinkADunk

GMC Sierra Suspension

9 posts in this topic

I'm in the market for a new truck and am looking at the 2500HD diesel (new body style). Anyhow, I'm not able to find a truck configured exactly the way I want but have found a couple that come close. I'm interested in the Z71 Off-Road Package (Z71 suspension, HD locking rear diff, and skid plate package) but did find a truck with the HD locking rear diff and the skid plate package but the stock heavy duty suspension. So the question is what is in the Z71 suspension kit that isn't in the heavy duty/trailering suspension? It looks to be a difference in shocks and something called a bounce jumpers. I'm wondering if I go with the stock and don't like it if I can add the parts later or if it's more extensive than that.

I'm considering towing a 5th wheel and boat (maybe) but know that I'll be towing a small RV trailer (w/ a more rugged suspension) for extended fly fishing trips in Montana, Colorado, and Wyoming.

Share this post


Link to post
Share on other sites

The Z71 option is new with the new body style in the HD. I have an 02 durmax that is just the regular suspension. I don't know what the real cost difference it you will probably get a smoother ride with the Z71 suspension as mine does ride like a 3/4 ton. I personally don't think that the Z71 is necessary as most people don't off road enough to require it.

I looked at a new one just last week but with the 46,000 price tag I guess I will wait and enjoy the one I have.

Share this post


Link to post
Share on other sites

Thanks, the Z71 option include the Z71 suspension, skid plate, and Eaton locking dif $600. The skid plate and Eaton locking dif total 400 and change so the suspension part of the deal is only $200 - I'm figuring shocks. Anyhow, the one I'm looking at is around $54K which is a fairly major wallet biopsy but the GM employee pricing gets it down a lot.

Share this post


Link to post
Share on other sites

No suspension info, but diesel engine info. Check the under-hood emission sticker to find out what year the engine is. There are many diesel 07s with 06 engines. I would not recommend an 07 Ultra-low emission engine. The government emission mandates for 07 ultra-low emission engines have caused all the engine manufacturers to use some patches to meet the requirements that many-many-many people feel are a very bad fix. This applies to all highway diesel engines, automotive, pickup all the way through class 8 OTR (over-the-road) semis.

There are way too many unknowns as to the maintenance and dependability of them.

A couple of the things on them: A Catalytic-converter / exhaust-particulate-filter with multiple sensors all tied to the computer - definitely not removable.

30% cooled EGR. (2002-2006 under 10% hot EGR.)

The engine oil - you must use CJ-4, more expensive and because of the additive chemistry limits on it not as good an oil as the older CI-4+ for 2002-06 requirements. (If you use CI-4+ it will poison the catalyst/epf system.)

Fuel economy - I have heard some report much lower fuel economy on 07s compared to similar 06 engines.

Me? I drive an 06 Sprinter diesel, and would not have an 07!

Share this post


Link to post
Share on other sites

Aftermarket exhausts are already becoming available to remove the factory exhaust that has the particulate filters and catalytic converters. It was only a matter of time. grin.gif

I agree though, I picked up a 2006 because I didn't care for the looks of the 2007 new gen Chevy's or GMC's and their excessive exhaust components. Obviously it'll only be a matter of time before we can't escape it, but at least I got one of the last "good ones". wink.gif

BTW, GM recently announced that by 2009-ish they are coming out with a 4.5L diesel that will fit in any GM vehicle that currently has a gasser V8....that could mean Impalas, Corvettes, the upcoming Camaro, and of course the 1/2 ton pickups where it will typically be found. 310 HP and 520 lb-ft of torque! That's how much my 2003 Duramax had in a 3/4 ton package. Should make those 1/2 tons scoot pretty good.

Share this post


Link to post
Share on other sites

I don't think the 4.5 's are going to have that many hps or torque. There is a big diffence in a 6.6 and a 4.5. frown.giffrown.gif

Share this post


Link to post
Share on other sites

That's what the press release said. Might be in a different RPM range, but it still should be a mover.

The factory ratings don't mean much anyway since there will be aftermarket chips and programmers to take it over 400HP and 700 lb-ft of torque with ease. Gotta love diesels over gas just for that alone. I know I do. grin.gif

Share this post


Link to post
Share on other sites

The early half ton Z-71's seemed to have softer springs and more travel in the shocks. The suspension travel seems 'smoother'.

Share this post


Link to post
Share on other sites

Quote:

I got one of the last "good ones".
wink.gif

BTW, GM recently announced that by 2009-ish they are coming out with a 4.5L diesel that will fit in any GM vehicle that currently has a gasser V8....that could mean Impalas, Corvettes, the upcoming Camaro, and of course the 1/2 ton pickups where it will typically be found. 310 HP and 520 lb-ft of torque! That's how much my 2003 Duramax had in a 3/4 ton package. Should make those 1/2 tons scoot pretty good.


I have one of the good ones the LB7 is still the best fuel mileage series of durmax they have turned out from everyone that I have talked to. Everyone that I know that had a LB7 and now has one of the new ones said they would rather have their LB7 back. Guess that is why I am in no hurry to change. After all mine only has 158K on it it is just getting broke in grin.gif. Except for that transfer case and wheel bearing assembly frown.gif.

All I know is that if they had a 1/2 ton crew cab with a 6.5' box that is what I would rather have but until that happens I will stay with my HD I love the truck.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • guideman
      Maybe you need some new spots. Raised 9 fish last night in 3 hours. Hooked two boated one.   "Ace" "It's just fishing man"
    • ANYFISH2
      7/19 Day 5   Day 5 was spent celebrating my Isaacs 11th birthday!  Lots of cake and catering to him.  The exciting typical swimmimg and paddling ruled the day.  Grandma and grandpa DeZurik came up to celebrate his birthday as well.  Always nice to get both sets of grandparents together at the same time.   Fishing continued slow even more.  Still a successful night though. The birthday boy conceded his seat in the boat so grandma and grandpa cpuld join me for the evening fish trip.  My folks in all truth haven't been fishing for 2 years or more.  It was just nice to get them in the boat.   I struggled as the acting to put them on a consistent bite.  Mom as able to scratch out the biggest walleye at 17".  Dad brought home the honors of most fish caught landing a 14" and 15" walleye, 8.5" bluegill, and 2 perch as big aa his leech! I mustered up 1 small pumpkinseed.
    • ANYFISH2
      no doubt aboit the hooks, they are lottle stickers.
    • DLD24
      I like drifting with them and snap jigging them with a controlled fall...Almost every time you'll feel that tick just as it's hitting bottom... Last time I was on mille lacs that's all I could get them to go on. As far as colors I'd just match the forage Tullies in the lake use blue,purples,silvers....Perch use perch colors.. I think the jiggin rap is my new favorite way to fish, but it gets scary with them little hooks when you got a big eye on lol.
    • DLD24
      Fished Big Sandy from 8-2 today and got 10 eyes (no keepers) keeper crappie and perch.... Marked tons of fish, but it was tough to get them to go, Lindy rig with a half crawler was the best by far. I tried leeches,jigging rap, jig n plastic. Points and reefs were the spots, later in the day a lot of fish were off the edges of the reefs... Just one day this year I'd like a happy medium weather wise, either I'm in 4ft rollers or 90 degrees with zero wind haha.
    • Garmandu
      According to Al Linder you can do it all with them...on his video that I watched a while back he was in deeper water throwing into 15 feet and working it back to the boat.  I have not tried it yet but will have to sometime this year.  Sand or gravel bottom would be the best.
    • ANYFISH2
      Just started playing with these this week as a friend has been have goos luck all summer with them on the Cass lake chain. I have not any success yet but not real sure on the best way to use them with my set this week.  My friend searches pods of fish out with electronics then spot locks and vertical jigs. I have no electronics or spot lock so I have been control drifting and jigging.   My questions...   Is there a depth they work better in, shallow vs. deeper?   Better vertically jigged vs trolled vs casted and jigged?   prime colors? of course my be lake dependent.   typically, aggressive jigging vs subtle jigging?   Thanks for tips
    • Perchy
      Yes, insured. I will ask the adjuster, thanks.
    • Captain Acorn
      Thanks cliff and lb I have actually had better luck with the puppet minnows from northland but I have mainly jigged them vertically definently is a fun way to fish 
    • LBerquist
      I've been trolling at about .5mph while using a jigging rap. This way one guy can still drag a lindy. I keep the front hook intact but my boat has contributed about half a dozen to the lake so far this summer. Im still working on getting the hang of it. If I know I'm in a rough area I will attempt to keep the jig from hitting bottom which still seems to be effective. I did pick up a couple off brands that don't have a front hook that I want to try. This is just what I have been toying around with, I'm definitely not an expert at it.