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Diff Question.
https://slantsix.org/forum/viewtopic.php?t=40671		 Page 1 of 1
Author:  Brussell [ Wed Jun 16, 2010 11:00 pm ]
Post subject:  Diff Question.
So found out I can get 4.11 diff gears (or it was 4.55 not entirely sure). for around $300 and I was told that i can just swap them straight into what i already have.

I have a 1967 VC Val and it's stock as far as the diff is concerned. can I just swap this new ring and pinion in?

And the other big question is

Is this still street able? Or will I find it to jerky and bad with acceleration...?

Thanks a lot I am still pretty new to this stuff!
Author:  Fopar [ Wed Jun 16, 2010 11:09 pm ]
Post subject: 
4.11 will not be fun for road speeds due to higher engine RPM's, 4.55's much worse.
What size (type) of rear axle housing?
Author:  DusterIdiot [ Thu Jun 17, 2010 5:29 am ]
Post subject:  Lol...
Quote:
4.11 will not be fun for road speeds due to higher engine RPM's, 4.55's much worse.
Only if you have an automatic or 3 speed...it isn't bad if you are using an overdrive transmission... :wink:
Author:  Brussell [ Thu Jun 17, 2010 5:52 am ]
Post subject: 
Ok, Sorry massive newbie at this.

So I think I've got this right;

Is it the engine rotates 4.11 times every wheel revolution?
Meaning Higher RPM and more acceleration.

However a lower gear means better top end (Not exactly sure what this means) and slower acceleration but higher speed?

So then having a higher ratio (for a streeter car) will mean I have a higher RPM all of the time?
Author:  Brussell [ Thu Jun 17, 2010 5:53 am ]
Post subject: 
just to add yeah I have the 3 speed auto 904tf
Author:  Fopar [ Thu Jun 17, 2010 7:24 am ]
Post subject: 
Yes, the number of engine RPM's to wheel RPM's are what the numbers indicate. The closer you get to 1 to 1 the more it is like starting out like you had a stick shift and left it in high gear.
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