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 strong is a Chevy 10-bolt rear end?
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.
What is a #10-bolt?
Hex bolts have hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.
How can you tell a 12-bolt?
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.
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.
What is the strongest rear end?
Dana 60 Rear End Assemblies
If you want a big brute of a rear end under your car, look no further than a Dana 60. Even in the heyday of muscle cars, Dana 60 rear differentials were renowned for their strength, along with their difficulty to locate.
How much horsepower can a 8.2 10-bolt handle?
Roughly 550 to 600 HP total. No slicks, drag radials. No problems with the 8.2 at all. I used the stock diff., the Auburn would be better.
Is Posi the same as limited slip?
Registered. Posi and limited slip are both the same thing. Standard rear end “Peg leg”, both back wheels always propel the car but the power goes to the wheel that spins the fastest. So if one side spins out, all the power goes to that wheel..
Will a Tahoe rear end fit a Silverado?
No. You shouldn’t try fitting a Silverado differential into a Chevy Tahoe.
What’s a 10 bolt rear end?
The 8.5-inch 10-bolt rearends have ten 3/4-inch hex head bolts with 7/16-20-inch left-hand thread bolts that hold the ring gear to the carrier. The pinion shaft diameter is 1.625 inches and will have either 28 or 30 splines. Like the 8.2-inch 10-bolt, the 8.5 10-bolts use C-clips to retain the axles.
What is a GM 10 bolt?
The GM 10-Bolt semi-floating rear axle has been in use for over 40 years. It’s been used in passenger cars, and light duty pickups and SUVs over the decades.
What is a GM 10 bolt front axle?
The GM 10 Bolt front axle was used on Chevy and GMC 1/2 ton and 3/4 ton 4×4 pickups from 1977 to 1987 and on Blazer/Jimmy, and Suburban SUVs from 1977 through 1991. Identify a GM 10 Bolt Front Axle: Type: Iron beam 4×4 Front Drive Axle Front…
How do I know what rear end my s10 is?
How to Identify an S-10 Rear End
- Look under the rear of the vehicle. The rear end is centrally located between the rear wheels.
- Match the shape of the differential cover on the back of the rear end housing to the gasket shape chart found on Roadkill Customs Differential Identification page.
What gear ratio is a 12 bolt rear end?
A wide variety of aftermarket gear ratios are available and Strange carries many GM 12 Bolt 8.875 gears in stock.
What rear end came in a 57 Chevy?
Automatic 57 cars (both 6 and V8) came with 14inch tires and 3:36 rear gears. Stick shift 57 cars came with 14 inch tires and 3:55 gears.
Are all 12-bolt rear ends the same?
A different 12-bolt differential was used for light truck applications, but those 12-bolt units are not directly interchangeable. You can identify a truck differential by the smaller, 1.438-inch diameter pinion shaft and the size of the rear cover, measuring 10.875 inches by 10.875 inches.
What does a 12-bolt rear end mean?
The GM 12-bolt rear axle assembly receives its name due to having 12 bolts on the rear cover of the housing. This rear axle was available in GM’s high-performance intermediate cars, full-size vehicles and light-duty trucks.
How do I know my Chevy ring gear size?
The ring gear diameter is measured across the face of the gear. To obtain the ring gear diameter, simply place a tape measurer across the gear. This can be tricky if the ring gear &
carrier are still in the housing. In some cases, a differential can be identified by the number of cover bolts is has.
How much horsepower can a 9-inch rear end handle?
“They’re good only to 400hp max,” says Tom at Tom’s Differentials. “Anything above that should use today’s beefed-up, redesigned, nodular-iron aftermarket cases. They’re good to 800 hp, if built properly.
What’s the best rear end for drag racing?
Ford 9″– The Ford 9″ is definitely the most popular of the rear ends in drag racing. It offers good strength characteristics and the largest variety of gear choices. The thirdmember type center section allows a racer to have multiple gear ratios available and is much easier to change than a rear loading type rear end.
What is a good gear ratio for a street car?
If we have a daily driver, 2.55 to 3.25 gear ratios typically work best, whereas a street/strip application we would usually use a 3.42 to a 3.90 gear ratio, and race applications most commonly use a 4.10 and above gear ratios.
How do you narrow a GM 10 Bolt?
Dave, You can narrow a 10 bolt by getting a donor rear (8 3/4 Mopar works good) and narrow the donor axles and put the chevy spline on the end. Then use the donor axle housing ends, brakes, etc and you have a much stronger rear and bigger brakes.
How do I identify my GM rear end?
Locate the GM manufactured rear-end casting date on the housing. It is located at the base of the housing, on a flat surface facing upwards. It consists of a letter and three numbers, i.e., A141. The first position, “A” represents the month of manufacture, in this case, January.
Is Posi Trac better?
In a positraction differential, the unit senses which wheel has the greatest traction, when one tire is slipping or stuck, and sends power to that wheel. Power to the other wheel continues until equal control is returned to both tires. Positraction is beneficial when road conditions are wet or muddy.
Which is better limited slip or locking differential?
Limited slip differentials provide your vehicle with the best traction around. Locking differentials might give you good traction too, but the traction that you will experience with limited slip differentials is better. For starters, they will make it easier to turn on roads which are slippery and wet.
How do I know if I have rear end Positraction?
If you can turn the wheel on your side while the other wheel is held still, the rear differential is not a Positraction unit. If you cannot turn the wheel on your side while the other person is holding their wheel in place, then the axle is a Positraction.
Are Yukon and Tahoe parts interchangeable?
The exterior carries the most difference in the two models, while the interior design is almost identical. That is a big disappointment for both the Yukon and Tahoe buyers. We assume GM wants to save the manufacturing and design cost on those parts, so most of the interior parts are interchangeable.
What year Tahoes are compatible?
The safest Tahoe year models to purchase are 1995 – 1998, 2000, 2006, 2010, 2012, 2013, 2014, and 2017 – 2020. There’s very little to worry about with all of these year models, as all have garnered very few complaints over the years.
How do I find the axle ratio on my Silverado?
To find the axle gear ratio of any GM vehicle, locate the RPO sticker (typically located in the glove box) and write down any codes starting with F, G, or H.