bad angle on both drive lines
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Junior User
Joined: Dec 2003
Posts: 83
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From: hillsboro OR
bad angle on both drive lines
I have a 1975 ford f250 and both drivelines have bad angles. the front driveline angels down below the front axle and the back one comes in to high about the rear axle and easy way to fix this. thanks for the help
Laughing Gas
Joined: Jul 1999
Posts: 1,047
Likes: 22
From: Lacey, WA
Muddford,
Jeremy is correct concerning "how" to change the angle but there is more to it than just rotating the axle. You must insure that the angle at the U-joint at the differential is equal to the angle at the U-joint near the transfercase. This requires shiming the transfer case's angle along with rotating the axle. (The nice way around this is to replace the U-joints with CV joints.) Anyway, this drive line alignment is refered to as "phasing". Not getting the phasing correct will result in viberation and premature U-joint failure.
Take care,
Lee
Jeremy is correct concerning "how" to change the angle but there is more to it than just rotating the axle. You must insure that the angle at the U-joint at the differential is equal to the angle at the U-joint near the transfercase. This requires shiming the transfer case's angle along with rotating the axle. (The nice way around this is to replace the U-joints with CV joints.) Anyway, this drive line alignment is refered to as "phasing". Not getting the phasing correct will result in viberation and premature U-joint failure.
Take care,
Lee
Posting Guru
Joined: Jun 2003
Posts: 1,823
Likes: 0
From: Houston, Texas
Originally Posted by lee
Muddford,
Jeremy is correct concerning "how" to change the angle but there is more to it than just rotating the axle. You must insure that the angle at the U-joint at the differential is equal to the angle at the U-joint near the transfercase. This requires shiming the transfer case's angle along with rotating the axle. (The nice way around this is to replace the U-joints with CV joints.) Anyway, this drive line alignment is refered to as "phasing". Not getting the phasing correct will result in viberation and premature U-joint failure.
Take care,
Lee
Jeremy is correct concerning "how" to change the angle but there is more to it than just rotating the axle. You must insure that the angle at the U-joint at the differential is equal to the angle at the U-joint near the transfercase. This requires shiming the transfer case's angle along with rotating the axle. (The nice way around this is to replace the U-joints with CV joints.) Anyway, this drive line alignment is refered to as "phasing". Not getting the phasing correct will result in viberation and premature U-joint failure.
Take care,
Lee
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Senior User
Joined: Dec 2003
Posts: 330
Likes: 0
From: Newhall,CA
Originally Posted by JeremyH
Correct. And if he has any body lift on the truck, then he can remove the radiator drop brackets and install spacers under his motor mounts....this will also help the driveline angle.
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Elder User
Joined: Dec 2000
Posts: 581
Likes: 2
From: Somerset, Pa
Every stock Highboy that I have seen (including my 71 f-250 4x4) has the front axle pinion pointing down from the axle. This is due to the t-case yoke onthe front pointing slighly upward.
if you don't have vibrations or you are not eating u-joint I owuld leave it alone.
if you don't have vibrations or you are not eating u-joint I owuld leave it alone.
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