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How strong can you make 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.
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 all GM 12-bolt rear ends 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 good is a 12 bolt rear end?
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.
What’s better 10 bolt or 12 bolt rear end?
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.
How do I identify a GM 12 bolt rear end?
The easiest way to identify a 12-bolt rearend is obviously by the 12 bolts holding the rear cover onto the axle housing. The pinion shaft on passenger-car differentials is 1-5/8-inch in diameter and the cover is oval, measuring 10-15/16-inches wide by 10-5/8-inches tall.
How much power can a 8.8 rear end handle?
Registered. 8.8 is fine up to 1,200hp or so. just weld the tubes, build a brace off the center section to the tubes, and weld 9in ends on it for the desired width.
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 gear ratio is a 12 bolt Chevy rear end?
Amazon.com: GM Chevy 8.875″ 12-Bolt CAR Rearend Posi, Gear, Bearing Kit Package – 3.42 Ratio : Automotive.
How do I know what GM rear end I have?
All Chevrolet rear ends can be identified by comparing the gasket shape to an identification chart similar to the one found on Drivetrain’s differential identification page (see References). A visual chart of different GM/Chevrolet rear ends is found on Ring & Pinion’s differential types web page (see References).
What rear end do I have in my Chevy truck?
You can typically find your RPO code on driver side door panel or glove box. General Motors rear end differentials are referred to by the diameter of the ring gear, i.e. 7.5 inch, 8.5 inch, 10.5 inch.
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.
How much horsepower can a 10 bolt rear end 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.
Why is the Ford 9-inch so good?
The Ford 9-inch is desirable because it has a removable carrier, which allows quick rear end changes. Many racers carry an extra carrier assembly with a different rear end ratio so they can try different combinations on the same day while at the track.
How strong is a GM 10 bolt rear end?
But there are several models in the 10-bolt line-up. The smaller 7.5- and 8.2-inch 10-bolt rear axles can’t transmit horsepower loads in excess of 400 hp. However, the 8.5- and 8.6-inch 10-bolts are extremely stout and effective rear differentials that can transmit up to 1,000 hp to the rear wheels.
Did Ford make a 10 bolt rear end?
There are two headings, one for Ford-manufactured units and a separate one for Dana/Spicer units. Ford 7.5 and 8.8-inch units both have 10 bolts, however, the cover and gasket shapes are different. Similarly, the Dana 35 and 44 models have ten bolts with different cover and gasket shapes.
Does Ford have a 10 bolt rear end?
Ford 7.5s and 8.8s have 10 bolts, the 10.25 has 12 and all Dana units have 10 bolts, but each has a different gasket shape. The chart also provides width dimensions for measurement verification. Attach a deep socket with an extension to the lower rear-end bolts.
