[Fot] TR Drive Shaft

Robert Lang lang at isis.mit.edu
Tue Mar 3 16:27:21 MST 2009


On Tue, 3 Mar 2009, Randall wrote:

>> I'm thinking of making up a fixed lenth shaft without the sliding
>> pline. With the diff fixed i see no reason to have the spline .
>
> Just my uninformed opinion, but it seems to me that the transmission and
> differential both move on their mounts enough to matter, not to mention the
> frame itself flexing.  Transmitting all that force to ball bearings not
> designed for side loading seems like a bad idea to me.
>
> But YMMV and all that.  Might be OK for a race car that only has to last a
> few hundred miles.

No, you're spot on. You want/need u-joints or CV joints at both end of the 
driveshaft.

Aluminum is good if you want to reduce rotatating mass which helps 
acceleration in 1st gear and diminishing as you move up in speed.

> Randall

rml
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