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Author Topic: Driveline offset  (Read 297 times)
68snewpy
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Driveline offset
« on: April 24, 2008, 05:39:27 PM »

I'm scrapping the 7 1/4 rear in my Duster in favour of a Ferd 8.8 from and explorer.  Now, before you get all pissey on me I can't find anything mopar around here at a decent price and this rear has 3.73 gears and limited slip already.  The pinion is offset about 2.5" to the right.  I may have to narrow the long side and install another short side axle (this results in stock a-body width).  I am hoping to install as is and was wondering what the problems might be.  I can live with the extra width and I know that the drive line is offset to the right in a-bodies anyway but not sure how much.  Any predictions of insight would be appreciated.
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mopowers
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Re: Driveline offset
« Reply #1 on: April 24, 2008, 07:01:30 PM »

I cut my Dana 60 down to have a 1 5/16" pinion offset.  I bet anywhere from 1 1/4" to 1 1/2" will be fine.
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74duster383
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Re: Driveline offset
« Reply #2 on: April 25, 2008, 09:03:30 AM »

When I installed my engine and tranny last year using a motor plate I had to research this as well so I knew how far to off set it.  If I remember correctly the engine is offset to the right (passenger side) 2 1/2 inches.
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Re: Driveline offset
« Reply #3 on: April 25, 2008, 09:38:39 AM »

Having an offset is important to the life of the u-joints. If it was a perfect straight line thru the driveline from the harmonic balancer to the rear end all the stress would be on a few needle bearings as there would be no movement at the u-joints.
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IF YOU CAN'T FIX IT WITH A HAMMER YOU HAVE AN ELECTRICAL PROBLEM.
Nitrous340dart
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Re: Driveline offset
« Reply #4 on: April 26, 2008, 11:23:30 PM »

When I was narrowing my D60 i talked with Chris Alston chassie works and Strange, they said that having the pinion centered in the rear end would be ok as long as I had pinion angle off set a few degrees.  I dont plan on putting a lot of miles on the car.  But if I was build a street car I would probably had the pinion off set a little.
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illfish
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Re: Driveline offset
« Reply #5 on: April 27, 2008, 11:00:01 AM »

I think the Ford 8.8 is a great way to go.  Real tough rear end.
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abqdart
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Re: Driveline offset
« Reply #6 on: April 28, 2008, 01:23:08 AM »

 agree I almost did the same swap! Cant really go wrong. When you get it in take a shit load of pics and post.....let us know how it goes.
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