Performance mods for 37s

[Silver_rado]

I have a 2018 Silverado 5.3 on a 9in Mcgaughys lift with 26x14 on 37s. Im trying to decide if a tune will get me by for now or should I regear  to 4.56 or 4.10s. I dont do any offroading just normal driving.

[H-town Silver Bullet]

Sounds mighty damn aggressive!!!

Mind sharing a pic or two?!?

 

I have ZERO recommendations; I just appreciate everyone's unique taste [emoji2379]

 

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[ullose272]

Regear to at least 4.56

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[Silver_rado]

[Frankielozano214]

8 minutes ago, Silver_rado said:

Badass bro 

[CamGTP]

4.88's for 37's. 4.56's if that is not an option. You've already spent like 1/6th the trucks value on rims/tire so what's another $2,500 to fix the gearing.

 

A tune won't do crap to help when it has no mechanical advantage left. Those tires need to be tuned for anyway to correct the speedo but I kinda suspect that if someone plugged 37in tires into the calibration it will throw ABS/SC codes like the older models did.

 

 

[Silver_rado]

I wish it was $2500 I been told like 4 grand from a couple places but im still looking.

[CamGTP]

That seems insane. I haven't priced out parts in a long time but if you bought the parts themselves it should be under $1,500 for a new rear locker, new rear gear set and bearing kit. Then a new front gear set/bearing kit.

 

Are some of these places thinking it takes 25 hours at $100+ an hour to do this stuff?

 

I don't have a labor time handy but it can't be anywhere near that long for R&R.

[Silver_rado]

Yea thats what i don't understand i have read thats guys have been paying less than 3 grand

[Silver_rado]

^

[Silver_rado]

Update just found out Yukon doesnt make a 4:56 for a 9.76 rear end

[CamGTP]

What about 4.88's?

[Jacoby]

Are you sure you got the 9.76”?

[Silver_rado]

I ran my VIN through the dealership I have the 9.5. Think the guy thought i had 6.2 with a 12 bolt. Im going with 4:56 due to both highway and city driving. Also gonna install a Detroit truetrac 

[Silver_rado]

Update got the gears installed 2 months ago and went with 4.88s. Honestly not impressed and regret it