97 chevy silverado rear end

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zach1999

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I am interested in swapping my 10 bolt rear end with a 12 bolt limited slip. Is there alot of fab I have to do? What would be the best truck to pull one from?
 

b454rat

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Why? 12 bolt ain't much stronger than the 10 bolt. Depending on what year the 12 bolt is, it will have the grenade lock, which isn't any better than the one in the 10 bolt. But it can be done, need to swap spring perches and shock mounts, and a conversion joint.
 

Schurkey

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12 bolt???

Do you mean 14-bolt with G80? And if so, WHICH 14 bolt? Semi-float 9.5" ring gear, or full-float 10.5, or 11.5 ring gear?

The 14-bolt, semi-float 9.5" ring gear axle practically falls right into a 1500 that used to have the horrible 10-bolt 8.5" ring gear. You need new U-bolts, a conversion U-joint for the rear of the driveshaft. Get all the mounting plates with the axle, and grab the 6-lug axle from a 2WD or a 4WD "light duty 2500" truck to match your truck--they're different.
 

DamHoodlum

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12 bolt???

Do you mean 14-bolt with G80? And if so, WHICH 14 bolt? Semi-float 9.5" ring gear, or full-float 10.5, or 11.5 ring gear?

The 14-bolt, semi-float 9.5" ring gear axle practically falls right into a 1500 that used to have the horrible 10-bolt 8.5" ring gear. You need new U-bolts, a conversion U-joint for the rear of the driveshaft. Get all the mounting plates with the axle, and grab the 6-lug axle from a 2WD or a 4WD "light duty 2500" truck to match your truck--they're different.


^^^^This ^^^^
 
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