[urq] Diff Lock Question

[Mike Sylvester]

David,

I would not recommend doing that.

An open diff can have unequal rotation but has a 50/50 torque split all
the time.
A locked diff has locked rotation and can have a 100/0 torque split
which means one wheel will loose traction and be forced to do so in
tight corners.

How did you turn around in a parking lot?  I'm surprised you didn't
break something driving 10k miles that way.

Mike

> -------- Original Message --------
> Subject: Re: [urq] Diff Lock Question
> From: "Schaible, David" <David.Schaible at jrspharma.com>
> Date: Tue, July 01, 2014 9:30 am
> To: 'Paul Ahvenainen' <pahven at gmail.com>, "urq at audifans.com"
> <urq at audifans.com>
> 
> 
> Probably good advice thinking about $ and parts availability to repair, however I don't know that I've heard of anyone in 15 years who has had any issues with center or rear diffs.  I broke the actuator arm on my 200q20v rear diff in the lock position and drove it locked almost 10k miles before I replaced the diff.   You can feel it and it will scrub your tires down faster but as far as it being dangerous.....I don't agree.  Many people say the old setup, mechanical diff in center and rear is more predictable than the torsion.
> 
> David Schaible
> 
> JRS PHARMA LP | 2981 Route 22, Suite 1 | Patterson, NY 12563
> (P) 845.878.8343 | www.highfunctionalityexcipients.com | www.jrspharma.com
>  
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> 
> -----Original Message-----
> From: urq [mailto:urq-bounces at audifans.com] On Behalf Of Paul Ahvenainen
> Sent: Monday, June 30, 2014 10:17 PM
> To: urq at audifans.com
> Subject: [urq] Diff Lock Question
> 
> I had 2Bennett do some work on my 83 urq last week. It's very nice to work with a team that understands these cars and actually keeps parts on hand.
> 
> Any way, when I picked up the car, they gave me some advice about the differential locking mechanism. Basically, they said don't use it for anything other than getting out of a ditch.  They said it should only be used at low speed, in a straight line, otherwise the handling will be dangerous and the repairs will be expensive. According to the owners manual the system is recommended for use for low traction conditions, like rain. 
> 
> I'm curious about experiences that other early urq owners have had. My car has the single stage activation that locks both the center and rear diff at the same time. 
> 
> Thanks. Paul
> 
> Sent from my iPad
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