Hey, gettn ready to switch gears, literally in my pro touring themed street car. Its a 700+ hp 427ci ls, 4l80e, 65' nova.
running 18x12s w/335/35/18s outback, 18x9s upfront. Bfg rival S- 26"+ tall tires. My car was originally being built for a 900hp turbo set up. I ve now switched to NA and wanna ditch the 3.25s currently in my Fab 9 style rear for some 3.89s im thinkn. There are a ton of choices out there for ford 9" 3.89s ranging from $180-$700. Im not on a tight budget, just looking to pick the right gears for the right reasons.
Looking for strong, reliable, quiet, and most effecient. Already got a ton of power train loss with the 4l80e and ford 9". Please help out. I just wanna do it right the first time. This car will be 100% street use, and driven like an animal!

 

P.s. Im running 35 spline moser axles and a Wavetrac diff.

 

You want to use a street gear as they won't wear as fast as the more expensive and softer race gears. Hoosier, Motive and US Gear produce gear sets that are typically quieter than Richmond. https://shop.brutespeed.com/9-Inch-Gears_c1091.htm Bob

 

Thank you, i ll reach out to you shortly than.

 

You're welcome, thanks!! Bob

 

Have you looked into Stealth series gears from US Gear?

These gears are supposed to be the quietest option out there from what I read.

 

I called US Gear this AM and discussed their "Lightning series" and their "Stealth series". Lighting series is their isotropic super finishing and the stealth series is a new cut profile. Both are designed to reduce NVH and friction. I ordered both options for my 9" this AM. It'll be a while before I install it but it sounds like it is worth it to me!

 

Here's a company that gets it when it comes to quiet 9" rears.
http://www.johnsindustries.com/quiet-zone.htm

 

I’ve heard good things about US Gears Stealth series being really quiet.

 

That is encouraging. I ordered this ring & pinion in early Dec. and I am still waiting on delivery. They were supposed to have shipped everyday since Jan 3rd. No luck so far.

 

this would be my only choice

jim

 

Im still in tbe market, and havnt orderd yet. I cant find much on the lightning series. Just the sales ad. Doesnt seem to be any reviews or testimonials out there.

 

I think im gunna save up the extra money for the US GEAR set in 3 89s with the stealth/lightening series upgrades. Whats another $700 in this build,lol