Rear Diff Carrier - Series 3 or Series 4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dag19 · 08-23-2020, 10:34 PM

I have a leaf spring 12 bolt truck rearend that I would like to put 3:73's in. I am changing out the axles to a 30 spline 5 on 5 pattern. The pickup has a Gen III 6.0 LS with a 4l80e transmission.

What series of carrier would be best for the 3:73's? A 3 series or a 4 series? I ask because when I was perusing Summit and Richmond Gears, I see they offer 3:73's in both series. Also I intend to go with a Detroit TrueTrac.

08-23-2020, 10:34 PM	#1
dag19 Registered User Join Date: Apr 2010 Location: Austin TX Posts: 135	Rear Diff Carrier - Series 3 or Series 4 I have a leaf spring 12 bolt truck rearend that I would like to put 3:73's in. I am changing out the axles to a 30 spline 5 on 5 pattern. The pickup has a Gen III 6.0 LS with a 4l80e transmission. What series of carrier would be best for the 3:73's? A 3 series or a 4 series? I ask because when I was perusing Summit and Richmond Gears, I see they offer 3:73's in both series. Also I intend to go with a Detroit TrueTrac. Last edited by dag19; 08-23-2020 at 10:42 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.