Question on aftermarket parts and fitment

[beerthirty]

Is there a list of aftermarket parts that fit on the drivetrain and suspension?

I most likely snapped my rear half shafts last night (or worse) when I buried my m998 up past the doors in snow. (Bad idea fairy was strong). I am mechanically inclined, just never done much on the hmmwvs before. I have a 91 M998 soft top.
Wondering if anyone has put in beefier T case, aftermarket hubs (greased vs the oil bath), pretty much anything dealing with suspension, drive train etc.

I'd assume spec wise, if I can find half shafts that are same specs but higher rating there wouldn't be a issue same with much of the rest.

 

[Bulldogger]

Try the Hummer Knowledge Base for aftermarket cross-references. As far as Half Shafts, many have had good experience with those from Advance Auto / Autozone. They are the 10K versions with ABS sensor ring, which is not needed typically and some remove it.
BDGR

 

[Action]

Don't hit the brakes while a wheel is spinning and you are not moving.

 

[beerthirty]

Don't hit the brakes while a wheel is spinning and you are not moving.

That's definitely what likely happened.

 

[Coug]

The hubs work just fine as is, and I've never heard of anyone breaking one no matter how stupid they were being. The oil bath system works fine, provided you actually check fluid level once in a while to make sure it's still filled to the correct level. I've never actually heard of aftermarket hubs for these.

Halfshafts are the weak point. This is actually a good thing, because they are relatively easy to access and easy to replace.

The autozone shafts are imports, chinese made. For the price and lifetime warranty you can't go wrong if you don't mind chinese made parts, otherwise stick to one of the main parts distributors like MacMotors, Kaskar, HPG, or the AM General website.

Other than that, if you want to start swapping out transfer cases and differentials and such, deep pockets and good fabricating skills are kind of a necessity.

 

[Ajax MD]

That's definitely what likely happened.

To prevent this from happening in the future, read up on BTM: Brake Throttle Modulation. While common in the off-roading world, it's an essential technique for HMMWV operation:

Driving Techniques

I've seen two recent instances of folks with broken half axles. Several folks have stated that this could have been prevented with proper driving techniques specific to the HMMWV, such as brake-throttle modulation (BTM). I got no such specialized training with Mother Navy when I learned how to...

www.steelsoldiers.com

 

[Retiredwarhorses]

sh*t breaks for 3 reasons...
-old Fatigued part
-part pushed past its limitations
-improper driving

no.3 is the no.1 reason for parts failure on this truck

 

[Ajax MD]

If that's true, our truck will last forever!

You might also add:
- Failure to perform PMCS

 

[beerthirty]

Firstly, we definitely were not driving properly. I got it fully knowing offroading/driving through my cornfield etc was going to likely break shit.

Finally got time to look at it. And at the moment it looks like it'll be some knuckle busting fun as the V belts are all out of their grooves and way worn out (1 was completely broke) grabbing some tomorrow and hopefully the guys are done hooking up the vehicle lift so we can start looking at the underside to figure out what we broke in that area.

 

[beerthirty]

To prevent this from happening in the future, read up on BTM: Brake Throttle Modulation. While common in the off-roading world, it's an essential technique for HMMWV operation:

Driving Techniques

I've seen two recent instances of folks with broken half axles. Several folks have stated that this could have been prevented with proper driving techniques specific to the HMMWV, such as brake-throttle modulation (BTM). I got no such specialized training with Mother Navy when I learned how to...

www.steelsoldiers.com

Thanks for the post definitely worth the read. Drove hmmwvs for 10 years in the military never once was told this. Probably should've been common sense but I'm not exactly a rocket scientist when it comes to 4x4 type stuff

 

[Action]

Why does it look like the belts are on inside out?

 

[beerthirty]

Why does it look like the belts are on inside out?

Because they jumped off when we were being idiots apparently. Had to order the alternator belts. Got it all put back together.

Started it up sans alternator belts and putting it into R or any drive theres a loud clunk after a few minutes and the front is the only ones spinning. Back end tires move when we towed it a few feet to push snow but otherwise only the front end spins.

 

[TOBASH]

Engine works so worse cast scenario is a new transfer case or driveshaft or differential.

Maybe a little less beer and a little more behaving older than 30 in the future?

 

[beerthirty]

If I can figure out how to upload videos on imgur or what not I'll upload tonight.
Messing around for a few minutes, the minute the front tires meet resistance it seems like the transfer case pops out

 

[TOBASH]

If I can figure out how to upload videos on imgur or what not I'll upload tonight.
Messing around for a few minutes, the minute the front tires meet resistance it seems like the transfer case pops out

it might be as simple as the cable needs adjustment.

it might also need a replacement or rebuild.

 

[beerthirty]

Videos

http://imgur.com/a/GGMugxe

The one outside of the vehicle is in R & HL.

 

[Milcommoguy]

it might be as simple as the cable needs adjustment.

it might also need a replacement or rebuild.

What cable? Tow cable maybe, CAMO

 

[beerthirty]

Engine works so worse cast scenario is a new transfer case or driveshaft or differential.

Maybe a little less beer and a little more behaving older than 30 in the future?

I was sober when we went out. That's the worse part lol you'd think my common sense would be not to drop off into a non maintained road lol

 

[TOBASH]

What cable? Tow cable maybe, CAMO

The X-fer case shifter mechanism cable/rod/thingy/doo-dad

Surprised you don’t know that TM lingo. You need to search the index and appendix better.

 

[Retiredwarhorses]

There is no cable to adjust...

im Not even sure what your current problem actually is...