How strong is a 12-bolt rear end?
Chances are your truck has a 12-bolt rearend, but if not, it’s fairly easy to get your hands on one. Not only are they common, but they can also be pretty solid when built correctly. In fact, they can stand up to around 800 hp, which is perfect for a street truck with some performance mods under the hood.
Are 10 bolt and 12-bolt axles the same?
First, the 10-bolt’s pinion shaft diameter is 1.438 (25 splines) while the 12-bolt is 1.625 (30 splines) which makes the 12-bolt 13 percent larger in diameter and therefore stronger. The 8.2 uses a 28-spline axle (1.20 inches in diameter) while the 12-bolt uses a 30-spline axle (1.625 inches in diameter).
Are all GM 12 bolts the same?
They are not interchangeable. That doesn’t mean the truck rearend is not capable of receiving performance upgrades. To the contrary, aftermarket 30-spline differentials and axles are available. GM car and truck 12-bolt rearends are easily distinguishable by the cover shape.
How much does it cost to narrow a 12-bolt rear end?
It should cost about 150-200 to shorten the housing. You should get the housing narowed before you order axles so you get the correct length.
Are 12 bolt rear ends good?
When the 12-bolt rearend is properly assembled, it’s the strongest passenger-vehicle rearend Chevy ever produced. GM engineers designed the 12-bolt to be a durable piece that could handle the torque output of its big displacement engines.
How much horsepower can a GM 10 Bolt handle?
Here’s what I’ve been lead to believe: 7.5” 10 bolt GM rear: It will take up to about 450 HP IF the axle tubes are welded to the housing and either a differential cover with preload bolts is installed or straps are installed over the carrier bearing caps along with longer bolts.
What size is a GM 12 bolt rear end?
8.875-inch
12-Bolts to Glory The GM 12-bolt debuted in 1965 and was mass-produced until 1972. It features an 8.875-inch ring-gear carrier held in place with two internal main caps. The pinion gearshaft measures 1.625 inches in diameter and is shimmed to achieve the proper pinion depth.
Is a GM 12 bolt rear end good?
How much does it cost to have an axle narrowed?
prices. A newer 60 with 1.6″ id spindles would be $100, narrow it $250, axles because they can’t be resplined are $325, if you cut it down to fit 2 short side 70 axles then they $20ea, a locker $450-650, gears $180, instal kit $100, R&P setup $150-250, brakes $250, spring pads $20.
How much does it cost to Respline an axle?
Around here the cost to respline stock axles is about 150.00 – 200.00. You can get axles from Dutchman for just a little more than that and son’t have to worry about your local machinist screwing it up. If you do it yourself remember that the pinion is offset so you’ll have to make one side longer than the other.
What is the strongest rear end?
The 9-inch Ford Rearend is the Strongest Rearend Out There—It’s All Due to “Hypoid Distance” 1] The 9-inch Ford has no differential case gear-ratio range restrictions; one differential accepts all gear ratios from the 2s through the 6s.