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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Apr 2005 Posts: 8 Member | | Member Joined: Apr 2005 Posts: 8 | hey guys i wanted to see if some of you could help me with this one i need to find out what gears i have in my rear axel ,thx donavan | | | | | Joined: Apr 2000 Posts: 499 'Bolter | | 'Bolter Joined: Apr 2000 Posts: 499 | The best, easiest and most accurate way to check rear gear ratios is to jack the truck up. With both tires just clearing the ground, put a piece of tape on the inside of both tires. Put a piece of tape on the ground next to each of the tire tapes. Put a piece of tape somewhere on the driveshaft or yoke so that it hangs straight down and is easy to see. Get a helper on the other tire and turn both tires in the same direction, at the same time. Count the number of turns on the drive shaft, until the tires are back to the tape marks and have made one revolution. If you should happen to have posi, both tires will turn together in the same direction. If the drive shaft turns past 3 turns and ends up on top, it has 3.50:1 gears. If it turns just shy of 4 turns it has 3.90 gears, or just past 4 turns, it's 4.11
'67 GMC 3/4 292 4spd
| | | | | Joined: Dec 2002 Posts: 3,445 Moderator - The Electrical Bay | | Moderator - The Electrical Bay Joined: Dec 2002 Posts: 3,445 | Or you can take your AXLE apart and see if the ratio is on the ring gear.
Another quality post.
Real Trucks Rattle
HELP! The Paranoids are after me!
| | | | | Joined: Oct 2002 Posts: 4,066 Bolter | | Bolter Joined: Oct 2002 Posts: 4,066 | and some might be stamped on top of the rear housing,,
Redryder pixMy HotrodA veteran - whether active duty, retired, national guard, or reserve - is someone who, at one point in his or her life, wrote a blank check made payable to The 'United States of America', for an amount of "up to and including my life."I am fighting cancer and I am winning the fight | Pain is part of life; misery is an option. | | |
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