How do I find my Silverado axle ratio?
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.
Can you tell axle ratio by Vin?
Your vin tells you what gear ratio came with the truck. Your axle will have a tag that agrees, IF its original and not removed.
How do I tell what gear ratio my Chevy rear end has?
One full rotation. And all you’re gonna. Do is watch the yoke there on the uh the rear. End and however many times that goes around that’s your gear. Ratio.
How do I know my axle ratio?
Divide the number of the ring gear’s teeth by the number of the pinion’s teeth. This will give you the axle ratio.
How do I find the axle gear ratio on my truck?
I you just use some blue tape. And then turn your wheel one time while you’re turning it one time count the number of rotations on your drive shaft that will determine your gear ratio.
How do I identify my Chevy differential?
How to Identify Your Differential & Axle Type – YouTube
How can I tell what gear ratio I have without pulling cover?
With the transmission in neutral, rotate the rear driveshaft by hand. Count the number of driveshaft revolutions required for one revolution of the tire. If the driveshaft turns approximately 3-1/2 times, you have a 3.54 ratio, etc.
How do I know what rear end gear ratio My VIN GMC?
Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the placard labeled “Service Parts Identification” inside the drivers door panel or glove box.
How do I identify my Chevy rear differential?
If the ID tag or stamp is missing or unreadable, differentials can be identified by the number of cover bolts, the distinctive shape of the cover, the number of ring gear bolts, and ring gear diameter. They can also be identified by whether the center section is an integral or dropout design.
What rear end does my Silverado have?
To determine the type of rear-end your Chevy has, you need to check the number of the cover bolts, the cover, and the gasket. Then locate the rear end casting date.
How do you tell if you have a 8.5 or 8.6 rear end?
While the 8.5-inch rearend was used on vehicles up to 1999, The 8.6-inch (8.625) was used on 2000 and later-year trucks. The easiest way to tell the difference is by looking at the brakes. All 8.6-inch rears have disc brakes, and 8.5-inch units have drum brakes.
How do I tell what rear end is in my truck?
Stamped Number on the Axle
To figure out exactly what axle you have, you can look for the Dana stamped bill of materials number. This stamped number can usually be found on the righthand side or on the longer axletube on the same side of the tube as the differential cover, facing the rear of the truck.
How do I identify my GM rear differential?
Information about Differentials in GM vehicles can usually be obtained by looking at the RPO or “Regular Production Option” codes contained in the Service Parts Identification tag in the glovebox. Whenever possible, reference the tag numbers when ordering parts for your Differential.
What rear end is in my truck?
What is a 3.42 gear ratio?
Axle ratios may be expressed in notation as something along the lines of “3.42:1,” or a “3.42 rear axle.” In either case, it essentially means the drive shaft and pinion need to rotate 3.42 times in order to rotate the axle shafts once.
How do you tell if you have a 7.5 or 8.5 rear end?
The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. You will also notice the large, flat, cast-in protrusions at the five and seven o’clock positions. These protrusions are larger than those on the 7.5 rearend.
Are GM 8.5 and 8.6 the same?
The easiest way to tell the difference is by looking at the brakes. All 8.6″ axles have disc brakes and 8.5″ have drums. Both axles use the same ring and pinion gears so that means a ring and pinion set from a present-day 8.6″ will install into a 1980’s 8.5″ and vice-versa.
How do I identify my 8.5 gm rear end?
GM 8.2 10 Bolt vs 8.5 how to tell the difference – YouTube
Are 3.73 or 4.10 gears better?
4.10s are going to accelerate faster and decelerate faster on lift. However the trade off is greater fuel consumption per mile driven and higher engine speed per given road speed. In basic terms the 4.10s will feel quicker and 3.73 will feel faster.
How can you tell if you have 3.73 gears?
Rotate the marked tire one revolution while counting how many times the driveshaft rotates. eg, If your driveshaft made 3 3/4 revolutions, that would determine a 3.73 gear ratio. If you get approximately 2 3/4 revolutions, you have a 2.76 gear ratio.
How do I know what rear end I have?
How to Identify Your Differential & Axle Type | Differential Tech Tips
How do I know if I have an 8.5 or 8.6 rear end?
The easiest way to tell the difference is by looking at the brakes. All 8.6-inch rears have disc brakes, and 8.5-inch units have drum brakes.
How can you tell a 8.5/10 bolt rear end?
How do I know what size differential I have?
Is a 4.10 axle good for towing?
FACT: A 4.10 axle ratio is ideal for towing heavy loads in a mix of city and highway driving and when towing on varied or steep grades. A 4.10 axle ratio will provide improved acceleration in stop and go city traffic.