'87 Chevy Blazer
Oh yeah! A locked GM 1 1/2-ton military rear holding 6.17 gears replaced the wimpy 10-bolt. Check out the ladder-type traction bars that extend past the transfer case. They keep the rear springs from turning into an “S” when the pedal is stomped. The disc brake on the driveshaft replaces the factory drums at the wheels and is much less susceptible to mud intrusion.
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