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Independent suspension thoughts.

cgalpha08

"Like Nothing Else"
Messages
3,713
Location
Indianapolis, IN
So this interesting thought popped into my head....seeing as the popular thing to do is put a solid axle in the front...has anybody ever thought of bringing the h3 one step closer to the H1 with putting an independent suspension in the rear of the H3 to compliment the front? I dont have a lot of mechanical know how in this matter, but i do think it would be cool to see a complete independent suspension H3. Thoughts??
 

06 H3

a.k.a. "The Jackal"
Messages
9,496
Location
Meridian, ID
I have never seen anyone really think try and pursue this before but I think independent in the rear requires just as much work as getting a solid axle in the front of an H3. Personally I think HUMMER did an awesome job on the H3 drivetrain and suspension minus strength. If I could just beef up the axles I would be happy.

I think an independent rear would be cool to do and I would definitely like to see it. If done right it could be very beneficial.
 

BW_Hummer H3

Well-Known Member
Messages
1,084
Location
Texas
This past week(You beat me to posting it:)) I've thought about doing it in a duece, because it is a little stronger. Now if it was done like bebe's, front and rear, it would be really capable. Other than that I haven't thought about much.:emb:
 
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Expendable

Well-Known Member
Messages
1,025
Location
Burbank, CA
would be cool. but would require a LOT of R&D. not sure if it's worth it.

AM General Engineers used independent suspension in conjunction with geared hubs and the fact that the body is wrapped around the drivetrain and frame not the body on top of the drivetrain and frame.

it would give you more clearance for the axle but since the Transfer case and differential aren't tucked up high the ground clearance gained will be minimal. though, in conjunction a lift up front, ground clearance can be gained all around.

even Dennis Anderson (original Grave Digger Driver) has admitted that independent suspension is better than solid axles but the engineering is years till they can get it in Monster Trucks.

you would need a differential for independent suspension, halfshafts, upper and lower control arms, ball joints, hubs, springs, shocks, etc.

just some quick thoughts
 

TrailBreaker

Well-Known Member
Messages
111
Location
Asheville, NC
I believe Trail Breaker looked into it briefly
Yes, I have thought about doing and full independent suspension. I haven't completely given up on the idea just yet either. It would require ALOT of R&D and even more down time for the truck. I have sourced enough parts to make it fairly inexpensive by usingnoff the shelf production items. one thought included using GM 2500 IFS for the front and the rear. Basically turning the front axle around and placing it in the rear of the truck. The other thought was to use all H1 parts, including the geared hubs. the H1 set up, the drivetrain is designed to rotated in the opposite direction that the stock H3 drivtrain turns in. But by reversing the front and rear diffs, to opposite locations, it should rotate correctly, at least in my mind. LOL. The cost difference between and H1 drivetrain and a GM drivetrain are close enough to call it a wash. My cost for a GM set up would be about $1000 per corner. That's upper and lower control arms, springs, shocks, CV axle, knuckle,etc. Then figure about $1500 for each axle with gears. With that you would need a new transfer case, since the 2500 is a drivers side drop not a passenger side drop. And that's just parts. Don't forget the fab time for the mounting brackets, and all the necessary hookup points for the suspension. Not to mention the computer programming needed to make it all workWhile a great idea, in my opinion. It is not an easy task. I have not abandoned the idea just yet. There is a lot of research to do before putting the truck on the lift.
 

06 H3

a.k.a. "The Jackal"
Messages
9,496
Location
Meridian, ID
Would going with an H1 type portal setup give the H3 poor on road performance?

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bebe

Moderator
Messages
1,375
Location
Dayton, NV
No, it would be very wide though, would probably need to figure a way to narrow it - or for the money you would spend on building it you could just buy an H1 :giggle:

Trailbreaker has some good info - these types of projects are done by guys with lots of sponsors and have their own shop, or have so much money they just buy what they want.

You could just buy complete axles and the only issue would be to figure out the mounting locations, bracing reinforcing etc. Tedious work is hard to convince someone to get passionate enough about it to do a good job.
 

Ron B

Well-Known Member
Messages
359
Location
Los Angeles
The names escape me, but someone made an ifs/irs competition rock crawler a few yrs back. I think it did just ok...but the bugs weren't worked out. I know there was a guy running ifs/irs + hummer portals and wheels on a jeep. Really cool set up. There are a few aftermarket companies making bolt-on portals for solid axles.
 

06 H3

a.k.a. "The Jackal"
Messages
9,496
Location
Meridian, ID
Ron two ifs crawlers I know of is Shannon campbell and Randy ellis design specializes in independent suspensions

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