How do I identify a Holden 10 Bolt diff?
How do I identify a Holden 10 Bolt diff?
The easiest way to tell if a 10-bolt is an 8.5-inch or 7.5-inch version is to measure the distance between the very bottom bolt cover and the next adjacent bolt. On an 8.5-inch, the distance will be 3¾ inches, while, on a 7.5-inch, it will be 3¼ inches.
What is a GU4 axle?
GU4 is Holden production code to describe your rear axle fitted on the line. which equals 3.08. and GV4 = 3.36:1. GU8 = 3.90:1. etc etc.
What is an open Centre diff?
Open differentials are the most common differential found on passenger vehicles and allow the wheels to rotate at different speeds while the vehicle is turning a corner.
What’s a 12 bolt rear end?
The 12-bolt integral design features a carrier case and pinion support that are part of the rearend housing, while the 9-inch employs a drop-out third member that takes advantage of an independent carrier case and pinion support that bolts into the rearend housing.
What is GU4 RPO code?
GM RPO Codes – Factory Identification Labels and Interpretation
| RPO Code | Description | Ratio |
|---|---|---|
| GU4 | Axle Rear | 3.08 |
| GU5 | Axle Rear | 3.23 |
| GU6 | Axle Rear | 3.42 |
| GU7 | Axle Rear | 2.77 |
What do the numbers on a differential mean?
The term refers to the gears in the truck’s differential, which is a mechanical device that links the rear axle to the driveshaft and then the engine. Technically, the number should be expressed as a ratio, such as 3.55:1, meaning the drive shaft turns 3.55 times for each turn of a wheel.
How do I find my axle code?
Step 1 – Locate the axle code
- Locate the Safety Compliance Certification Label on the driver’s side front or rear door panel.
- Find the word AXLE under the bar code.
- Find the two-digit code under AXLE.
