I'm looking to mod a 6.2 for some light mudding. I say light cause it still needs to be able to go drive down the highway as much as 400 miles to each event. Performance doesn't concern me as much as durability. I would like some input on what I should do. BTW, I'm new to offroading, so I don't know what mods will help.

Sounds like what I'm tryin' to get out of mine, what rig you puttin' yours into?
mine's goin'into my sig rig.

My blazer does fair offroad in stock trim. Stock tire size(31x10.50x15LT), stock gears(3.08s), A/T pattern. Can it get better, but of course, but the few times i've had it off road it's been ok. I only managed to get it stuck once in hub high clay like mud, but i was able to back out of that on my own, the truck just wouldn't go forward in it.

The warn manual locking hubs are probably a really good idea. My auto-locks were nice since i didn't' have to get out and lock them , but other than that they sucked big time. Drop the truck in 4x4 and the entire truck would slam around when the hubs locked i since you have to roll forward with the t-ase in 4x4 for them to engage. Can't be good for the drivetrain. The Warn's i can lock them when we are excepting bad weather and leave the t-case in 2-hi and i notice no difference in driving, not even any added noise.

I do have the SM465 as well, which does help get more of the 6.2 "power" to the wheels versus the auto(700R4) so that probably helps a little.

Other than that, if you want bigger tires you'll have to get 3/4 ton or 1 ton axles if your project has 1/2 ton running gear. the 10 bolts really do not take well to larger tires. Ask Aces about the 1/2 ton axles. ):h

Not to turn this into a "blazer" thread, but I really like mine on road and off, driven evrey thing from a nissan husler to a 20' bobtail, and my K5 has the tightest turning ratio I've ever driven.

tight turning oh ya. i can drive in one door of my garage and turn inside and drive out the other side lol

Nice! get a vid of that when she's all together!

even my truck with 31's is pretty badass out in the mud and snow and slop and other random crap. dont even get my started on those paper thin 10 bolt crap. ive popped about 4 axle joints on my front axle since ive gotten the truck. and 2 of those were with the stock all season tires. so theyre not what id call a good axle for anything except for a 200lb gokart. get some real axles if you plan on playing and spinning the tires in the mud. i had autohubs too. and like dave said loved em but that bang and the fact that they stopped locking sometimes was a major downfall(that and the buggers would lock while driving down the road and start some terrible vibrations). my warn hubs are damn strong. i seen the inside of a mile marker hub and only half of the teeth engauge when the hub is locked. on my warns all of the teeth engauge so theres lots of beef in there.

spicer hubs are better, i've sheared warn's right off. auto hubs are junk. i've never had a problem with axle joints in a 10 bolt, so there must be another issue there brent. i did blow a spider gear, and that started blowing stuff. i just opened up a front 10 bolt with about 400 k km on it. looks like new inside, nothing damaged.

yea but you dont go into a mud hole pedal mashed in 4lo overdrive really slinging shtuff around lol. i could probably put a dana60 on the edge of its life if you give me a 454 and a 205 Tcase.

Sounds like what I'm tryin' to get out of mine, what rig you puttin' yours into?
mine's goin'into my sig rig.

Hopefully a '86 K10. Still waiting for the owner to come down on his price.

even my truck with 31's is pretty badass out in the mud and snow and slop and other random crap. dont even get my started on those paper thin 10 bolt crap. ive popped about 4 axle joints on my front axle since ive gotten the truck. and 2 of those were with the stock all season tires. so theyre not what id call a good axle for anything except for a 200lb gokart. get some real axles if you plan on playing and spinning the tires in the mud. i had autohubs too. and like dave said loved em but that bang and the fact that they stopped locking sometimes was a major downfall(that and the buggers would lock while driving down the road and start some terrible vibrations). my warn hubs are damn strong. i seen the inside of a mile marker hub and only half of the teeth engauge when the hub is locked. on my warns all of the teeth engauge so theres lots of beef in there.

Yeah I know not to get mile markers. Saw that on youtube. Which model hub do you run? I think warn has acouple for these trucks.

I personally don't think that my 82 k10 is anything at all to brag about off road or on icy roads. I got bfg mud terrains because I was tired of having to use 4x4 on wet grass. If you want a tough vehicle for off road you need to get an international scout.
my .02

Any suggestions for a transmission. I was thinking either a 700r4 or a manual overdrive trans. If I go with the 700-R4 I'll probably rebuild it with upgraded clutchpacks. Did see a older 4 speed manual with overdrive that was a good price, but not sure if its strong enough for mudding.

Wow never heard ANYONE say anything poor about the K series. Lots of guys I know drive the snots out of them and they hold up real well.
By the way don't rely on 4x4 on icy roads. Helps you move, doesn't help you stop.

Oh, I dunno...lock up the brakes so that you can throw it in reverse, then floor it in reverse....you'll stop.

I love my k5 offroad with 33 bfg all terrains. I would keep it na for offroad, once the turbo spools all the tires just spin :P

Oh ok sorry forgot about that manouver. That's the one to try just before throwing the anchor out the window I guess

Wow never heard ANYONE say anything poor about the K series. Lots of guys I know drive the snots out of them and they hold up real well.
By the way don't rely on 4x4 on icy roads. Helps you move, doesn't help you stop.

I was talking about the going part on snowy/icy roads....stoping is all in how the person drives the vehicle (i.e. not riding people's ass or driving retarded fast)... I suppose all that I do with it, it does fairly well, but i also have an international scout 2 (1979 to be exact). I also live on a farm so I have used both quite hard and I must say that the scout comes way out on top. Its hard to beat a vehicle that comes stock with a chrysler 727, limited slip differentials front and rear, dana 44's front and rear, and weighs more than my k10 does. sorry I need to focus on the chevy since this is the 6.2 forum... sorry about hijacking this thread.
robert

"stoping is all in how the person drives the vehicle (i.e. not riding people's ass or driving retarded fast)...

That's right I just hate it when I see 4x4 trucks blasting down the road in a snow or ice storm thinking they're invincible. Ususally see them in the ditch a few miles down the road

Exactly, that's when I stop and ask if they have a chain so that I can pull them out. It's great the look on their face b/c they never have one since they never thought that they would get stuck b/c it's a "big" 4x4.
robert

I agee with smackzed. My '91 sub does ok on ice. Drove down I-90 about a year ago during a ice storm in 2wd. Only going about 20 MPH(at best) during the middle of the night, practically no one on the road. I wish I had my camera at the time. Saw a car slammed trunk first into a lamppost. Acouple flipped SUVs and a local cop stuck in the shoulder.

while not really stock, i like how mine handles off road, only 4:10 gears with 39" tires but in LO boy she really has some get up and GO!!!

Now on the superwinch hubs, not sure if they revised them or not but i had a set on my CJ7, 38.5 boggers and they held up just fine, and i was NEVER easy on that front end, broke at least 4 or 5 axle shafts and u joints on that D30, i was never worried about the lockouts though, seemed pretty tough

Scratch the k10 and buy a CUCV. You will NOT find a more baddazz truck stock for off road. My M1008 wil eat a scout and piss out a Yoda.
:D

Scratch the k10 and buy a CUCV. You will NOT find a more baddazz truck stock for off road. My M1008 wil eat a scout and piss out a Yoda.
:D

:lol::funnypost:lol:

Scratch the k10 and buy a CUCV. You will NOT find a more baddazz truck stock for off road. My M1008 wil eat a scout and piss out a Yoda.
:D
Only because its got good axles and a good trans. a M1008 is not comparable to a a k5 or k10.
Wow never heard ANYONE say anything poor about the K series. Lots of guys I know drive the snots out of them and they hold up real well.
By the way don't rely on 4x4 on icy roads. Helps you move, doesn't help you stop.
k10s really aren't the trucks to off road stock. They are too wide, don't turn tight enough and aren't built stout enough to be serious without upgrades. Anything more than a mild trail will leave you sitting (either broken or stuck). If you're looking for bang for the buck, a scout, cj5, or a SFA toyota will all do much better than a full size GM. If you swap axles and get the trans built, the full size GM's can be a decent wheeler but you still have the size and steering issues.

if it was me id get a NV4500 for a transmission. then you have a really low crawl ratio and an overdrive gear. if you go auto get a monster transmissions kit for a 700R4. and find a 700 with the big K cast on the bellhousing of it. those cases are much stronger than the earlier ones.

I hope Im not outta line here. If you want good upgrades cheap this is what I did. I have upgraded my truck with a SM465 and 205 out of a late 70's suburban ( I had a custom rear shaft made). Replaced rearend with corportate 14 bolt FF. Added a cheap 4" lift all diffs are open. But this old truck really gets around amazingly well and could handle a 255-85-16 tire. the old 4 speed cost me some MPG but not enough to matter with what we do the granny gear is really nice to have in high range. I got all the parts sans driveshaft in a trade. My end of the trade was a 6.5 gear reduction starter. Of course I would love a Dana 60 front but those are hard to come by cheap.

I used to have a couple bad ass 6.2/6.5 off road machines.
First was a 1970 K5 Blazer that I swapped a 1984 6.2 in back in 86. Took that rig over the rubicon trail with only minor damage. I had it set up with an SM465 granny 4 spd, 205 transfercase, pto winch, full floater 14 bolt rear with detroit locker, dana 60 front with detroit locker and 4.10 gears. 9 inches of total lift and 36 inch swampers rounded out the package. It was awesome off road!

Then I took all my good parts and built an 83 K-20 and added a turbo. Still a kick ass off roader. Next I added a nvg 4500 and took out the 6.2 and replaced with a 18:1 6.5 lots of fun.

Then I got bored and wanted 4 doors, so I built an 85 suburban with all the parts from the pickup. Still an awesome off roader. Got bored again and replaced the 6.5 with a cummins, then I got smart and sold it, sold my jeep and bought a Honda foreman, go figure.

Daughter still has an awesome 86 K5 running on 35's with a late model na 6.5 and 3/4 ton running gear. K5's are still king!