Best rear springs for 4-5" drop carrying huge stereo

[TheAutumnWind]

View attachment 252553
amazon. 20 bucks. Cut the studs off with a dremel, fits perfectly into the factory Jouncestop location. Rides way better too.

check out this thread
https://www.tahoeyukonforum.com/thr...bump-stops-for-those-lowered-with-keys.71905/

I ran em on my old Denali. Worked great.

 

[TheAutumnWind]

the truck doesn’t sit quite as low as I’d like, however after exploring Lower ride heights, I learned where it’s at now is as low as I can go “comfortably”

around town, truck drives decent. Potholes / series of dips or bumps cause a lot of bumpsteer. Large potholes are violent. Feels like a bend a rim every time. Doesn’t slam the frame but it takes bumps very harsh.

on the highway. 50-60mph is fine, pretty smooth. 70-80 I develop a sway or “looseness” especially over bumps or changes in the road. The bumps cause the truck to go up and down almost float. Reminds me of riding in a 1990’s Lincoln towncar. Sloppy, airy feeling. Feels “looser” than I’d prefer.

Sounds underdamped and/or undersprung. Probably why you liked cut stock springs better than aftermarket springs which are not really built to have a bunch of weight on them. Cut springs have a higher spring rate than uncut springs. I ran z78/tow springs cut down on my denali with air ride delete and that rode much better than stock springs.

 

[BADRIDES]

Those are probably shorter than the 4923 by 1”

my 4923 belltech fit perfect with keys and decranked torsion bars. Light pressure touching when the truck is sitting level. I’ll try and snap a picture today.

I bought and tried these and they were way too tall to work. I even trimmed one round off and they still were raising my Tahoe up.
https://www.amazon.com/gp/product/B07G3QBP5P/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1

 

[Colby_e32]

Sounds underdamped and/or undersprung. Probably why you liked cut stock springs better than aftermarket springs which are not really built to have a bunch of weight on them. Cut springs have a higher spring rate than uncut springs. I ran z78/tow springs cut down on my denali with air ride delete and that rode much better than stock springs.

I considered going to the junkyard, grabbing a set of coils from a 2500 Suburban, or Z71 tahoe, and cutting them down and seeing how they ride.

Any idea if those coils are any stiffer than a 1500 tahoe Coil?

 

[TheAutumnWind]

I bought and tried these and they were way too tall to work. I even trimmed one round off and they still were raising my Tahoe up.
https://www.amazon.com/gp/product/B07G3QBP5P/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1

Those appear to be similar to the OEM in that picture.

 

[TheAutumnWind]

I considered going to the junkyard, grabbing a set of coils from a 2500 Suburban, or Z71 tahoe, and cutting them down and seeing how they ride.

Any idea if those coils are any stiffer than a 1500 tahoe Coil?

1500 tahoe non z28 or autoride?

Edit z71...

 

[Colby_e32]

1500 tahoe non z28 or autoride?

Yes my truck is an LT, non auto ride or z28. It does have a tow hitch but that doesn’t mean anything I don’t think..

 

[TheAutumnWind]

Yes my truck is an LT, non auto ride or z28. It does have a tow hitch but that doesn’t mean anything I don’t think..

Tow package/z71 springs are taller and stiffer

 

[BADRIDES]

Those appear to be similar to the OEM in that picture.

I need shorter than OEM since my torsion bars are turned down.

 

[Colby_e32]

Tow package/z71 springs are taller and stiffer

so if my truck has a factory hitch, switching to a z71 spring would do nothing?

I’m wondering if a 2500 Burban has a stiffer spring than a 1500 tahoe. Seems like it would have to..

 

[BADRIDES]

so if my truck has a factory hitch, switching to a z71 spring would do nothing?

I’m wondering if a 2500 Burban has a stiffer spring than a 1500 tahoe. Seems like it would have to..

Try and get me a pic of that jounce stop if you can. Thanks, Jason

 

[TheAutumnWind]

I need shorter than OEM since my torsion bars are turned down.

yes you do. those belltech ones are available in 2 sizes and fit in the cup erfectly once you trim off the stud

 

[BADRIDES]

yes you do. those belltech ones are available in 2 sizes and fit in the cup erfectly once you trim off the stud

Part numbers 4922 and 4923 but which one?

 

[iamdub]

the truck doesn’t sit quite as low as I’d like, however after exploring Lower ride heights, I learned where it’s at now is as low as I can go “comfortably”

around town, truck drives decent. Potholes / series of dips or bumps cause a lot of bumpsteer. Large potholes are violent. Feels like a bend a rim every time. Doesn’t slam the frame but it takes bumps very harsh.

on the highway. 50-60mph is fine, pretty smooth. 70-80 I develop a sway or “looseness” especially over bumps or changes in the road. The bumps cause the truck to go up and down almost float. Reminds me of riding in a 1990’s Lincoln towncar. Sloppy, airy feeling. Feels “looser” than I’d prefer.

The bumpsteer is from the front geometry. How is the front lowered?

Focusing on the rear, I'm thinking you need firmer shocks. What all have you tried as far as shocks?

 

[TheAutumnWind]

Part numbers 4922 and 4923 but which one?

You need me to google it for you?


Description: Foam Bump Stop - Universal Cone 2.01" Tall x 2.5" OD
Part #: 4923
UOM: Pair

BUMP STOP KIT
Description: Foam Bump Stop - Universal Cone 1.26" Tall x 2.5" OD
Part #: 4922

 

[Colby_e32]

Part numbers 4922 and 4923 but which one?

4923’s in this picture.. 31.5” ground to fender. Decranked

 

[Colby_e32]

The bumpsteer is from the front geometry. How is the front lowered?

Focusing on the rear, I'm thinking you need firmer shocks. What all have you tried as far as shocks?

Belltech street performance, stock, Monroe “heavy duty”
Now I’m looking at fox adjustable shocks from ride tech. The same shocks they use on their rear air ride kit. Not sure if I can justify 250 bucks per shock. But if it would help my problems it may be worth it..

Figured having something adjustable I can play with it some.

 

[BADRIDES]

You need me to google it for you?


Description: Foam Bump Stop - Universal Cone 2.01" Tall x 2.5" OD
Part #: 4923
UOM: Pair

BUMP STOP KIT
Description: Foam Bump Stop - Universal Cone 1.26" Tall x 2.5" OD
Part #: 4922

Thanks for the info, I found it on the website also.

 

[BADRIDES]

4923’s in this picture.. 31.5” ground to fender. Decranked View attachment 252717
View attachment 252716

Thank you

 

[Ambitious02]

It's like 31 in front and 32 in rear. U can get the coils I got on Amazon pretty cheap. It's the 4230 coils with 60748 bags. that's the same I got. the bags are not fun to get in either lol. Front I have mcgaughys spindles and 3/4 purple keys

Hey Bro Whats up? Is there any advantages to using the Belltech purple keys over the Belltech silver 3921's? Any input is appreciated!!