# What is diff ratio GU Patrol?

## What is diff ratio GU Patrol?

Nissan Patrols, as an example, have quite a few different options when it comes to diff ratios. The various engine series (TB, TD, ZD, and RD) in the GQ / GU Patrol all offered different ratios, from 3.54:1, all the way through to 4.62:1.

### How do you calculate diff ratio?

Turn the wheel TWO revolutions and count the number of driveshaft turns. The number of driveshaft rotations will help you determine your rear axle ratio. For example, if it turned 3 and a half times, it’s a 3.50:1 ratio. If it turned 4 and a quarter times, it’s a 4.25:1 ratio.

#### What do diff ratios mean?

Differential Gear Ratio determines the number of times the drive shaft (or pinion) will rotate for each turn of the wheels (or ring gear). The higher the number, the lower the ratio: a 5.29 gear has a lower ratio than a 4.10 gear.

What does a higher diff ratio mean?

Higher ratios mean the engine has to run faster to achieve a given speed. Lower ratios allow the engine to run more economically to maintain that given speed. With a gear ratio of 4.11, the driveshaft must turn 8,959 times (4.11 X 2180) per minute to maintain that speed.

What are 3.55 gears good for?

With a 3.55 being a higher numerical number, Garrison says it will put more torque to the tire, allowing for faster acceleration and better performance on hill climbs. However, the tradeoff is burning more fuel through a higher engine speed.

## What’s the diff ratio on a Nissan Patrol?

HG indicates a H233B rear diff, with a 233mm crownwheel. 39 – This indicates the diff ratio fitted at the factory. This number is rounded to 2 decimal places so is not completely accurate. In this case it is a 3.900 diff ratio. Click to expand… FS5R50B – This is the gearbox spec fitted. Common across all GU’s.

### What does 41 mean on a Nissan Patrol?

41 – Indicates the diff ratio fitted at the factory. This number is rounded to 2 decimal places so is not completely accurate. In this case it is a 4.111 diff ratio. Click to expand… HH43 i guess thats 4.3 ratio. but what does the rest mean?

#### Which is the correct formula for diff ratio?

DIFF RATIO FORMULA. Larger tyre size divided x standard tyre size. 35” divided by 31” = 1.1290 which = 12%. To calculate correct ratio – Standard diff size x 12%. example – 4.11 x 12% + = 4.6032.

How to calculate diff ratio for tyre size?

DIFF RATIO FORMULA. Larger tyre size divided x standard tyre size. 35” divided by 31” = 1.1290 which = 12%. To calculate correct ratio – Standard diff size x 12%. example – 4.11 x 12% + = 4.6032. The diff ratio required is whatever closest is available to 4.6. 