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#49801 08/31/2005 9:55 PM | Joined: Jan 2002 Posts: 38 New Guy | | New Guy Joined: Jan 2002 Posts: 38 | How can I determine the rearend ratio in my truck.
Is there a method/trick to find out?
I don't have any documentation, I don't want to open the pumpkin,
I was wondering if I could jack up one wheel and spin the drive shaft........ or something like that.
any help would be greatly appreciated.
thanks all
brian :confused:
"So many trucks, so little time!"
Vehicle list:
down to 2 now.
1 - 1967 Chevy 3/4 ton LWB 4x4
2 - do I dare say it??? a 61 Ford Unibody
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#49802 08/31/2005 10:35 PM | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | Yes, you can do it that way. Make two complete revolutions and count the rotation of the drive shaft. The wheel opposite the wheel you turn should rotate the other direction unless it's a locking differential. | | |
#49803 09/01/2005 12:51 AM | Joined: Jan 2002 Posts: 38 New Guy | | New Guy Joined: Jan 2002 Posts: 38 | if I left one wheel on the ground, and it's not a locking differential, would I get double the ratio?
"So many trucks, so little time!"
Vehicle list:
down to 2 now.
1 - 1967 Chevy 3/4 ton LWB 4x4
2 - do I dare say it??? a 61 Ford Unibody
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#49804 09/01/2005 3:14 AM | Joined: Nov 2003 Posts: 53 Member | | Member Joined: Nov 2003 Posts: 53 | In other words, with one wheel on the ground (can't turn), turn the other wheel (the one that is jacked up) exactly two revolutions. Your ratio is the number of times the driveshaft turns during two rotations of one wheel. | | |
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