9" rear end off-center?
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Joined: Jan 2005
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From: WA
9" rear end off-center?
Ok - I have been trying to determine if I need to off-set my engine to be inline with my 9" rear end. I've read that it is not needed and then someone posted a link to some guys site saying it did need to be off-set.
I don't think I will have any issues with the steering/etc - going with power steering.
So, I have installed Mustang II IFS and will be installing a 390 in it. I have a Ford 9" 3.5 gearing....
I know the engine needs to be parallel with the frame and the trans angle and pinion angle need to line up.....
Any help would be great.
Thanks,
Dave F.
I don't think I will have any issues with the steering/etc - going with power steering.
So, I have installed Mustang II IFS and will be installing a 390 in it. I have a Ford 9" 3.5 gearing....
I know the engine needs to be parallel with the frame and the trans angle and pinion angle need to line up.....
Any help would be great.
Thanks,
Dave F.
old and in the way
Joined: Jul 1997
Posts: 5,921
Likes: 1,052
From: Lovely Hueytown Alabama
dwarf..
Dick told you true... no offset is needed just to keep the c/l in line...
this might help you visualize it..
DRIVE LINE PHASING
later
John
Dick told you true... no offset is needed just to keep the c/l in line...
this might help you visualize it..
DRIVE LINE PHASING
later
John
Elder User
Joined: Jan 2007
Posts: 831
Likes: 1
From: San Antonio, Texas
That's true with the rear end, however I have read many post where it was necessary to off set the engine a little for the headers, exhaust manifold to clear the powersteering gear box. If you are sure there is no problems there, then as stated, no offset is required.
Gil
Gil
old and in the way
Joined: Jul 1997
Posts: 5,921
Likes: 1,052
From: Lovely Hueytown Alabama
crooked won't work.... the crankshaft center line and the pinion center line MUST be parallel... they can be offset a reasonable amount (to the limits of the universal joints ) but they have to be parallel... My 460 was offset 2" to the passengers side... but it was parallel with the frame rails and the pinion center line
john
john
Cargo Master
Joined: Apr 2007
Posts: 2,063
Likes: 38
From: Valley Center, California
Keep in mind that Ford offset the 3rd member to allow the needle bearings to rotate. I think Chrysler offset theirs in the up/down direction.
A perfectly centered drivelive is not what they had in mind. There are a lot of illustrations regarding driveshift alignment on the Net.
A perfectly centered drivelive is not what they had in mind. There are a lot of illustrations regarding driveshift alignment on the Net.
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GM did up and down, chrysler offset the engine. there HAS to be some degree of offset, otherwise the Ujoints will wear out in no time.
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