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| | | | Joined: Jun 2006 Posts: 8 Junior Member | | Junior Member Joined: Jun 2006 Posts: 8 | How do I determine the differential gear ratio of my recently acquired 1940 Chevy 3/4 ton pickup? Also, were there multiple "rear ends" in the early years? If it makes a difference, the original 216 was replaced with a "56" 235ci quite some time ago.
Jerboe
Fallbrook, Ca.
| | | | | Joined: Mar 2006 Posts: 76 Wrench Fetcher | | Wrench Fetcher Joined: Mar 2006 Posts: 76 | The way I was tought is to count the teeth on the ring and pinion gear and divide them, that will give you your ratio. Jeremy
1961 k-10
86 c-20
02 duramax
| | | | | Joined: Nov 2005 Posts: 266 Shop Shark | | Shop Shark Joined: Nov 2005 Posts: 266 | There was a post on this in the Engine and Driveline Shop just a few days ago that dealt with torque tube gear ratios.
Drew | | |
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