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Old 10-14-2017, 04:50 AM   #19
old31
Senior Member
 
Join Date: Jan 2016
Posts: 2,101
Default Re: Checking rear ratio

Quote:
Originally Posted by Synchro909 View Post
Here's the method I use:
Remove spark plugs
Jack RH rear wheel just clear of the ground and mark the tyre at 12 O'Clock ( I use a spirit level to get it as close as I can)
Set the hand brake so it is just dragging
Select 3rd gear and direct drive if you have an overdrive
Turn the engine exactly 2 turns.
Now, if the mark on the tyre stops at 11-12 O'clock, you have 4.11
12-1 O'clock, you have 3.78
1-2 O'clock, you have 3.54
Yes, but remember that I have the engine out of the car.
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