[VB] Transmission Rebuild

[Chris Dreike]

Hi Tom,
I have fuel injection on my 1776. Works fairly well but I really should go
to a dyno shop for a proper tuning. With My custom tune I can get 28mpg at
60mph. Pretty good! Was crazy driving out to Buses By the Bridge with a
bunch of other buses. I had a half tank of fuel in my 15g tank
when everyone else was empty on their 10g tanks.
If you have dual carbs and dual port on a 1600 I think you could pull the
3.875 R&P. Don't go to a 3.44 unless you have a larger motor like a 1910.
If you have the 4.375 that is about 6% lower gear ratio than a 4.125. I
used to have 4.125 and the .82. Could easily go 65 even 70 with a 1600 DP
and a weber progressive carb.

Chris

On Tue, Mar 23, 2021 at 5:46 PM Avocado Tom Tarka <avocadotom at gmail.com>
wrote:

> Chris,
>
> You’re totally correct: it does have the 0.82 already.  (I’m getting
> confused thinking of certain Bay Window transmissions).
>
> I will probably start with a single port 1600 but I may move to a 1776 in
> the future.
>
> It’s great to hear about your experience with the 3.875.  I’d kinda like
> to go with the 3.875, or at least a 4.125 (I think 4.375 is stock in the
> 67, but it was 4.125 earlier in the 60s?) if I could get away with it.
> Cruising below 3500 at 65 is desirable, I just need to still be able to
> tackle the hills out here.
>
> What carb setup are you using on your 1776?
>
> Cheers,
>     Tom
>
> On Mar 23, 2021, at 8:18 PM, Chris Dreike <cdreike at gmail.com> wrote:
>
> 
> Hi Tom,
> What size motor do you have? I think that the stock transmission had the
> .82 gear.
> If your motor is larger than 1600 I would go with the .82 4th gear. That
> is an 8% increase in gear ratio over the .89. resulting in freeway rpms
> being 8% lower.  Less scream from the motor. At 65mph you should see about
> 3600rpm if you have stock sized tires.
> I have a rancho rebuild with a 3.875 R&P and the .82 4th. I see about 3350
> rpm at 65mph. My motor is a 1776 in my splitty. I have power enough to go
> easily 70 on the hwy. Don't like to go faster.
> Let us know what you do.
> YMMV!!
>
> Chris
> 64 DD Kamper Kit
> 71 Sunroof
>
>
> On Tue, Mar 23, 2021 at 1:52 PM Avocado Tom Tarka <avocadotom at gmail.com>
> wrote:
>
>> Greetings Volks!
>>
>> It would seem that the transmission on my ‘67 is finally at the end of
>> its life.
>>
>> I’m about to pull it for a rebuild, but that raises three questions:
>>
>> 1. should I have the reduction boxes rebuilt? (I rebuilt them myself
>> maybe 30,000 miles ago and I guess I could also refresh the bearings myself
>> this time too)
>>
>> 2. Should I go with a 0.82 4th gear or the stock 0.89?
>>
>> 3. Should I have my local shop do it, or go with Rancho?
>>
>> Interested to hear your thoughts...
>>
>> Cheers!
>>     Tom
>>
>> —
>> “You can lead a horse to water, but you can’t cure stupid.” -T. Tarka
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>