Andrew,
As I understand it the geometry of the ring and pinion has to be quite
accurate and each ring/pinion/carrier is slightly different. Iven if you
just change the bearings on the pinion you generally need to reshim
things, so changing to a different set of gears will probably throw things
off even farther. I had to shim one ring/pinion set years ago and it took
a fair amount of patience and trial and error, but it is not rocket
science, just time consuming. You also need to purchase more shims than
you need so you will have what you need on hand when you start!
Peace,
Pat
- Support Habitat for Humanity, A "hand up", not a "hand out" -
Pat Horne, Network Manager, Shop Supervisor, Future planner
CS Dept, University of Texas, Austin, Tx. 78712 USA
voice (512)471-9730, fax (512)471-8885, horne@cs.utexas.edu
On Tue, 12 Feb 2002, Andrew Murphy wrote:
> This was the question I put out to my tech buddies: If I purchased a posi
> spool could I just drop it into my 3.7 diff and away I go? Answers came back
> about having to install shims for backlash and other things like the fact
> that the offset on the spool varies and that some can modified with spacers.
> As far as I can tell, it's not as easy as just dropping a posi spool into
> your diff.
>
> I had originally thought a 3.7 LSD would be great as I could get my
> positraction without having to deal with high RPMS at freeway speed. Perhaps
> a 3.9 LSD would be the way to go.
>
> Andrew Murphy
> SoCalROC
>
>
> From: "Brian Hollands" <bholland@hayes.ds.adp.com>
> Reply-To: "Brian Hollands" <bholland@hayes.ds.adp.com>
> To: "Adam Bradley" <ambradley@yahoo.com>
> CC: "Datsun Roadster Mailing list" <datsun-roadsters@autox.team.net>
> Subject: RE: Race car or street car?
> Date: Tue, 12 Feb 2002 14:00:58 -0500
>
> The diff and the ring and pinion are different parts. You can put a 3.90
> ring and pinion onto a limited slip diff. I currently have one with 4.38
> gears and am looking for a 4.11 instead. The 3.90s are readily available
> used as are the 4.38's. If you want to find out what 4.38's are like on the
> highway, just leave it in 4th gear (assuming you've got a 5 spd). The
> overall ratio with 4.38's in 5th gear is 3.72 - almost exactly the same as a
> stock 2000 in 4th.
> Brian '69 2000
> Tampa, FL
> http://web.tampabay.rr.com/oilleak/
>
>
>
> -----Original Message-----
> From: Adam Bradley [mailto:ambradley@yahoo.com]
> Sent: Tuesday, February 12, 2002 1:42 PM
> To: Brian Hollands; Andrew Murphy
> Cc: Datsun Roadster Mailing list
> Subject: RE: Race car or street car?
>
> Was there a 3.9 LSD? (1600 is 3.9) Would that be a good compromise?
>
> --- Brian Hollands <bholland@hayes.ds.adp.com> wrote:
> > Sounds like you need two roadsters
> >
> > Brian '69 2000
> > Tampa, FL
> > http://web.tampabay.rr.com/oilleak/
> >
> >
> > -----Original Message-----
> > From: owner-datsun-roadsters@autox.team.net
> > [mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Andrew
> > Murphy
> > Sent: Tuesday, February 12, 2002 1:14 PM
> > To: datsun-roadsters@autox.team.net
> > Subject: Race car or street car?
> >
> > /// datsun-roadsters@autox.team.net mailing list
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> >
>
>
> =====
> Adam
> '70 1600 SPL311-28181
> http://www.picturetrail.com/abend
> Send FREE Valentine eCards with Yahoo! Greetings!
>
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>
>
>
>
> _________________________________________________________________
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