Rear Springs - Longer Springs options for 4" lift over using spacers?

[Tozan]

I have a discontinued Rancho 4 inch lift kit on mine it does not have spacers. My kit came with taller springs Rancho Part # 673B Coil Spring. Maybe you can get some from them... To run these springs you may need most of the parts on the upper half of this photo.

 

[gmartin1215]

I have a discontinued Rancho 4 inch lift kit on mine it does not have spacers. My kit came with taller springs Rancho Part # 673B Coil Spring. Maybe you can get some from them... To run these springs you may need most of the parts on the upper half of this photo.

View attachment 371541

Thanks for the part number!
I sent Rancho a message and will see what they say.

 

[Tozan]

Please post results here so others will know..

 

[Oh Kee Pah]

Thank you @gmartin1215 & @Tozan !
I'm following. I've got the 4" Lift Kit on my '15 Tahoe LTZ w/ 3" rear option. Running a pair of OE z71 rear coils springs and the 3" BDS spacers provided w/ kit. Fox CO up front, MAYBE set a little too high.
However, I really like the idea of using a rear spring for the lift instead of the spacers. When I spoke with coilspring.com (out of Kansas if I recall) they said that +3" is the most they could do for my vehicle.
I think the pricing was around $300-400 for the pair of custom springs...

Unfortunately, I do NOT think that the '07-'14 model years' rear coils are compatible with my '15-'20 model years'. Hoping you can get these RCs to maybe work!

 

[87carl]

Thank you @gmartin1215 & @Tozan !
I'm following. I've got the 4" Lift Kit on my '15 Tahoe LTZ w/ 3" rear option. Running a pair of OE z71 rear coils springs and the 3" BDS spacers provided w/ kit. Fox CO up front, MAYBE set a little too high.
However, I really like the idea of using a rear spring for the lift instead of the spacers. When I spoke with coilspring.com (out of Kansas if I recall) they said that +3" is the most they could do for my vehicle.
I think the pricing was around $300-400 for the pair of custom springs...

Unfortunately, I do NOT think that the '07-'14 model years' rear coils are compatible with my '15-'20 model years'. Hoping you can get these RCs to maybe work!

2000-2020 are all compatible gm didn't change much of the rear suspension/frame for all 3 generations

 

[Marshall 008]

Thanks,

Do you have a lift on your Tahoe? What size springs did you end up getting from Coilsprings? WOuld you mind sharing the specs of the springs you got?

I just got these springs a few days ago. They took a few weeks to build them.
I’m running about 2.5” of lift on the front with Fox 2.5 adjustable coil overs. The rear I am using the same Moog springs with a one inch spacer as you in the rear.
I have not installed the springs as of yet b/c we are selling our house and moving to SC from FL this month.

CSS are great to deal with and very detailed on building you a set of springs to match your needs and application. I would recommend chatting with them.

 

[Marshall 008]

My spec was for an added 400lbs of weight and 1” of lift. I plan to add a Rig’d tire carrier to carry my full size 33” spare. I also mountain bike often and always carry my fold up bike rack plus tools in the rear cargo area.

 

[mrpeterclark]

Dobinson makes a 2" lift rear springs for the Suburban (C09-045) as well as a constant load version for ~700 lbs.

 

[gmartin1215]

@87carl
When you put those Skyjacker c50r springs on, what is your loaded length between the mounts (without a trailer or heavyweight in the back)?

I have the Moog 81609 springs with the BDS 3" spacer, and I am at 15.75 inches loaded length of the spring when it is mounted on the Hoe.

Everyone else...Rancho could never say that they had their springs available still or had an equivalent, so I hit a dead end there. I am looking for alternatives and considering the c50r or the BDS springs that come with their 6" kit. The c50r has a free length of 21.75" and the BDS is a 21" free length. I may still go the coilsprings.com route, but the last quote I got was near $400.

 

[gmartin1215]

@87carl ?