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Anyone know if a H2 rear sway-bar will fit an HD?

Haulin' 8.1

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Haulin' 8.1 Enthusiast

Haulin' 8.1

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I've seen them mounted behind the axle and have heard they share the chassis with the HD's so could it be a salvage yard bolt on for my 01 2500 HD 4x4?

 

Vernon

Jacqson Enthusiast

Jacqson

Posted
Posted
I've seen them mounted behind the axle and have heard they share the chassis with the HD's so could it be a salvage yard bolt on for my 01 2500 HD 4x4?

 

Vernon

 

 

 

 

Well, The H2 uses a 14 Bolt SF rear axle and the HD uses either a 14 Bolt FF(10.5" Ring gear) or the AAM 1150(11.5" Ring Gear) depending on the engine, transmission combo. If the sway bar on the H2 bolts to the axle shaft tubes then I would say that it may not fit because the axle shaft tubes on the FF are larger than the SF. The H2 is also built on the SUV type chassis and not the HD which is a little different. The only thing the H1 and H2 have in common is the name. Take some measurements of the sway bar on the H2 and see if it will fit on your HD, you may be able to modify it. :jester:

Haulin' 8.1 Enthusiast

Haulin' 8.1

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hey vernon. i don't think the chassis is the same. i thought the h2 chassis is the same as a tahoe. you can get a rear swaybar through hellwig suspension but if you have an oversized exhaust (ie 4") it will hit. thats what happened to me.

Heathen

 

Thanks for your replys and you guys are very good at guesstimating. This board has got to be one of the best there is.

 

I had just spotted a set on Ebay and was hoping to get a quick answer before the auction ended. Well that didn't happen so I bought them before I knew, dang it, :jester: .

 

It so happened that the very next day on of my customers at the auto garage showed up to check on his Vette in his new H2. So I slid under neath with a pad and tape measure and took some notes.

 

First off, it's not a bolt on but the bar will fit around the rear end nicely. The main problem will be attaching the sway bar brackets to the axle tubes. The H2 uses the SUV style control arm set up with coil springs while the truck uses the leaf springs. The H2 sway-bar brackets are about 36" center to center and they bolt straight up in a conventional sway bar saddle bracket slightly to the rear of the axle tubes, against the bottom of the control arm brackets. On the truck rear end the shock brackets are 36" center to center. The P/S is in front of the axle and out of the way but the D/S is behind the axle and therefore it's bottom bracket is a factor in mounting this bar. The way this would be fitted is with some pre-fabbed leaf spring to axle tube mounting brackets. I've seen some that will fit the HD axle tubes on a Jeep DIY suspension parts web-site before. By welding or bolting leaf spring brackets flat side down in the spots where the sway bar saddles need to be you could use them as mounts, bolting them directly to the new brackets.

 

The end links are close (I don't have my notes here right now) to 9-10 wider. They bolt to the frame in standard ear brackets with a through bolt in the link. The frame widths are similar. This would be easy to adapt to the truck with some simple fabricated brackets either bolted or welded to the frame. It looks as if it would clear my spare at 265/75 and the custom 3" dual tail pipes.

 

This is all speculation at the moment, if I get to it I'll post the results.

 

Vernon

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