Thread: Another driveshaft question. Side to side angles?

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The 1941 Ford I am building is good from the sideview, my problem is when you are looking at it from the top, my engine and trans are centered in the frame, my 9" rearend is centered so it puts an angle on my rear driveshaft, is that normal and I just haven't noticed it before?

Yes its normal.
Here are some facts to help you.

-The working angle of the ujoint should not be more than 5 degrees and not less than 1 or 2.
-The driveshaft doesnt care if the angle is up and down or side to side.
-If the rearend used 2 axles the same legnth, the pinion will be offset and if the pinion is centered your axles are different legnth.
-The angle of the tailshaft (or crankshaft centerline) and the pinion angle must be the same but on different planes, or parellel, (creating the working angle of the ujoints)

Hope this helps.

I was just looking at alot of hot rod chassis that when you look at it from the front the driveshaft is straight, I don't think I would have 5 degrees side to side but I bet it would have beterrn 2-3 degrees. all I am worried about basically is vibration at highway speeds.

You wont have vibration if the working angles are 2 or 3 degres. That is very good. Do a google search on this question and you will get lots of explainations with diagrams and pictures.

Some station wagons centered the pinion in the car to keep a smaller tunnel. You might find one of those housings and un equel axles. Swapping the guts out is easy.

Sorry, I cant spell in the morning, .... or afternoon, or anytime actually, but I type fast.

We had this conversation a few days ago on another site. Maybe there's some info. here you can use.

http://drr.infopop.cc/eve/forums/a/t...2/m/1921015304

WOW, that link that pro70z28 sent is some very good reading,

I think I have it set up ok now,, thanks for everybodys input