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Re: 4K tranny - .75 or .80 5th??



On Tue, 23 Jan 2001 02:16:54 -0500 "RoccoPhil" <roccophil@mindspring.com>
writes:
> I have heard some rebuilders (Stu from BSI for one) that the .71/.75 
> is a too huge a drop for a 3.67 (course I am talking about the 9A
here).  
> So for an AGB or equivalent 3.67 I was considering going with a .80 5th

> gear.
The .71 is a bit much with a 3.67 final gear ratio...

> My question - if I spring for a 4k instead, is it advisable to do 
> the .75 as opposed to the .80 due to the 3.94 final?
Yes, I'd even think about a .71 5th gear.
I think the 4K is 3.89:1, though...

Ask yourself, do I want an overdrive 5th (.71), or a closer ratio 5th,
(.75).

I'm deciding between .71 and .75 for my 3.94:1 2H, and I'm leaning
towards the .71 5th gear, out of my RIP '81 S.

With 3.67:1, I'd use the .75 or .80 5th gear.
With 3.89 and 3.94:1, I'd use a .71 or .75 5th gear.
...Depending on if I want an overdrive 5th gear or not.

Peter
'79 Scirocco 16V project car
'83 GTI "Caged Rabbit" 
'84 Scirocco, RD/FF
'80, '88 Scirocco rollers

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