Well, you figured out that
1) a Second gear of 3.55 x 1.92=6.92 is a good second, and
2) that 1.67 x 3.55=5.93 is a terrible Second, and
3) that 2.66 x 3.55=9.44 is a lazy First, but,
4) 3.09 x 3.55= 10.97 is a Good First gear.
So what you want is the 10.97 First with the 6.92 second .... Right?
Well, that combo actually exists and it's called a Commando. The gears are
3.09-1.92-1.40-1.00, with splits of; .62-.73-.71 Very Nice; I love mine.
The key here is that you like the 6.92 Second gear.
If you were to use
the A833od, you'd need a rear gear of 6.92/1.67= 4.14 which rounds to 4.10
But Low gear with the od box, becomes 3.09 x 4.10= 12.77,
and so with a 4000rpm redline, and
24.7" tires, that shift comes at just 23mph, and then, at the shift, you're stuck at 23mph= 2170 in Second. Therefore, you may need to rev First a lil higher, just to get into Second at a lil higher rpm, so the doggone thing doesn't fall on it's face.
Lets say you revved first to
4800@27.6mph, then in Second, that would be 2600rpm. That would be a lil better.
Now
Lets say you installed that
Commando Box AND then went back to the 3.55s.
Now you only need to rev First to
4200@28.1mph, and the 1>2 shift gets you 2600 That's pretty good right?
With this Box, 4000 in 4th gets you 82.7mph with 3.55s and 65=3140.
Whereas the od-box gets you 65= 2230, also with 3.55s
IMHO, I would not use the A833overdrive for this application. Second gear is just too far away.
I think the slanty would be happy with the Commando/3.55s. But,
Ideally, she really needs a 5 speed.
Or an automatic with a 2600/2800stall.
BTW; This is for a streeter.
