Locker or LSD? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**truckster** · 12-17-2023, 05:28 PM

I know it's a tired subject, but I've searched and I'm not sure I've found the right answer yet.

My Blazer originally had a gov-lock differential, until it blew up and took the housing with it. I replaced it with an open 12 bolt, but I'd like to upgrade it. I'd like to keep the cost down. I don't do much offroad driving, but I do drive in the snow. My Blazer has a warmed-up L31 Vortec and TH350 transmission. The gear ratio is 3.73:1 and I'm running 33x12.5 BFG All-terrain tires.

I'm leaning toward the Yukon Gear YDGGM12T-4-30-1.

Your advice is appreciated.

12-17-2023, 05:28 PM	#1
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,954	Locker or LSD? I know it's a tired subject, but I've searched and I'm not sure I've found the right answer yet. My Blazer originally had a gov-lock differential, until it blew up and took the housing with it. I replaced it with an open 12 bolt, but I'd like to upgrade it. I'd like to keep the cost down. I don't do much offroad driving, but I do drive in the snow. My Blazer has a warmed-up L31 Vortec and TH350 transmission. The gear ratio is 3.73:1 and I'm running 33x12.5 BFG All-terrain tires. I'm leaning toward the Yukon Gear YDGGM12T-4-30-1. Your advice is appreciated. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson



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