Source for H2 rear springs

[p nut]

I just picked up a cherry 2005 Yukon XL. 180k, G80, 3.42. Very excited to get this build going.

I picked up some new (take off) Colorado WT steel wheels (17”) that I’ll put 285/70/17 KO2/3’s on. I just love these steel wheels.

Up front, I’ll probably go with RC 2” keys. 5100 shocks all around.

I wanted to try out H2 springs in the rear. But I can’t seem to find any OEM springs. I’m not sure I trust aftermarket springs. Anyone know where I can get some?

And do I need longer endlinks?

 

[ThundahBeagle]

Good question and I dont know the answer. But if I am not wrong, the H2 was built on the k2500 platform, so if you did need longer links, I'm wondering if he links for the H2 would work?

 

[ThundahBeagle]

I hated the GMT800 platform when it first came out, mainly because it was the first platform not to have a 2 door big blazer/ tahoe option.

Once I got over my own hangups about that, I could see the 800's were overall great vehicles. Do you have a thread about it

 

[p nut]

Hey @ThundahBeagle I ended up buying some H2 springs on Amazon. They’re not OEM since they (GMC) stopped making them years ago. But they seem to work fine and gave a 2” lift. I also went with RC keys and 5100’s all around. And new 33” KO3’s. It rides so nice now.
Some time in the future, I’ll swap in some 4.10’s. Maybe next year.
I don’t have a thread since it’s a very mild build. I have a Jeep for hardcore stuff. This is for backcountry exploration with the family. I think with this current set up, it’ll be perfect.
My fav body style is the square body Burb’s. But they’re too old now and I don’t have the time to keep up on them. I think the GMT800 is a sweet spot (for me) in terms of reliability, parts availability, and “old tech” (ie no AFM).

 

[ThundahBeagle]

Hey @ThundahBeagle I ended up buying some H2 springs on Amazon. They’re not OEM since they (GMC) stopped making them years ago. But they seem to work fine and gave a 2” lift. I also went with RC keys and 5100’s all around. And new 33” KO3’s. It rides so nice now.
Some time in the future, I’ll swap in some 4.10’s. Maybe next year.
I don’t have a thread since it’s a very mild build. I have a Jeep for hardcore stuff. This is for backcountry exploration with the family. I think with this current set up, it’ll be perfect.
My fav body style is the square body Burb’s. But they’re too old now and I don’t have the time to keep up on them. I think the GMT800 is a sweet spot (for me) in terms of reliability, parts availability, and “old tech” (ie no AFM).

@p nut

Those old square body Blazers and 'Burbs were what was being produced when I was growing up, and oddly, those were called round body when they came out. Compared to the ones before, the corners, especially the rear, were more rounded. I Have a soft spot in my heart for them always, but, yeah, good luck finding a decent specimen that wont break the bank.

The GMT 400's were available just as I was getting out of school and I liked them right away. Had a simple 6 foot bed truck, and two full size Balzers from the GMT 400 line - think original Tahoe but in 2 door. The roof didnt come off but it was that much more sturdy. Wish I still had all of those.

Glad you found your springs. What did you do for sway bar links?

My K2 is on Bil 5100's on 33 BFG's (okay, 32.8"). I never swapped the UCAs when I lifted so I always have to be careful with the front outer edge. Sounds like the RC keys help you prevent that and help prevent the stiffer ride of just cranking on the existing keys

 

[p nut]

@p nut

Those old square body Blazers and 'Burbs were what was being produced when I was growing up, and oddly, those were called round body when they came out. Compared to the ones before, the corners, especially the rear, were more rounded. I Have a soft spot in my heart for them always, but, yeah, good luck finding a decent specimen that wont break the bank.

The GMT 400's were available just as I was getting out of school and I liked them right away. Had a simple 6 foot bed truck, and two full size Balzers from the GMT 400 line - think original Tahoe but in 2 door. The roof didnt come off but it was that much more sturdy. Wish I still had all of those.

Glad you found your springs. What did you do for sway bar links?

My K2 is on Bil 5100's on 33 BFG's (okay, 32.8"). I never swapped the UCAs when I lifted so I always have to be careful with the front outer edge. Sounds like the RC keys help you prevent that and help prevent the stiffer ride of just cranking on the existing keys

For the springs, I found some off-brand on Amazon. Hopefully they will not have sagging issues. Time will tell.
I stuck with the stock swaybar links. The sway bar looked fairly level after the spring install so I’m hoping they will be ok.

Yeah, I’m loving the “33” inch BFG’s and Bil 5100’s. The ride is smoooth. Just got back from a 600 mile trip.

I had 2” wheel spacers but they looked terrible with the tires poking out so far. So I took them off and it looks much better.

 

[2025 deleted member]

Nice!

 

[Overlandtowater]

I picked mine up from rock auto. They are conversion springs the H2 had air bags.

 

[p nut]

I picked mine up from rock auto. They are conversion springs the H2 had air bags.

I think the air ride suspension was an option. I believe some came with coils from the factory.

 

[Heavyhoe02]

For the springs, I found some off-brand on Amazon. Hopefully they will not have sagging issues. Time will tell.
I stuck with the stock swaybar links. The sway bar looked fairly level after the spring install so I’m hoping they will be ok.

Yeah, I’m loving the “33” inch BFG’s and Bil 5100’s. The ride is smoooth. Just got back from a 600 mile trip.

I had 2” wheel spacers but they looked terrible with the tires poking out so far. So I took them off and it looks much better.

ive been running the h2 springs from amazon for 3 years with loaded rear sleep deck and heavy rear bumper with tire swing out, no sag to date

 

[p nut]

ive been running the h2 springs from amazon for 3 years with loaded rear sleep deck and heavy rear bumper with tire swing out, no sag to date

That’s great to hear! I was worried since it’s sitting fairly level with the 2” keys up front. I’d hope not to resort to lowering the keys.