So 410 rear by the way I read that gives you an o.d. of 356.
But you still have to factor in tire dia.
Stop in for a cup of coffee
- Thread starter toolmanmike
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But you still have to factor in tire dia.
You have to up the rear gears.
You can split all your shift ranges with that unit. It's like a hi lo rear.
Nothing like an 8spd in an old goat.
They are not cheap. I've had mine for over 15 years. Raced the he'll out of it blown clutches. Sheared an axle . Never a problem with the GV.
Just be prepared for more mods.
New drive shaft. Maybe have to modify floor.
They will tell you nice folks to deal with.
Just be prepared for more mods.
New drive shaft. Maybe have to modify floor.
They will tell you nice folks to deal with.
Ddaddy
Just doing what I do
From the dept of this site sucks hard lately!!!Duplicate post....or something new from the Department of Redundancy Department?
Ddaddy
Just doing what I do
It’s all about what the step down is in OD. If you are at 3.23, the step down will kill you. If you are at 3.91 or higher, it is perfect.
Yeah. A .78 rear gear is perfect for something along the lines of 4.10.
That's the one negative I have right now. I have 3.23 suregrip for the dart but with the T56 or the TR6060, both the 5th and 6th gears are overdrive. With 6th being like .58. So it's another reason I'm considering a Dana 60 rear instead and selling the a body rear.
So a 3:23 would be 2:52 final in high gear. Too High?
Ddaddy
Just doing what I do
Yeah, that would suck driving in OD. No balls at all. It would make it awful on the Highway trying to pass or compensate for grades. I wouldn’t want to be much less than 3.06 on the highway in OD. 3.91 rear minimum.
Don't forget... tire size plays a big part in final drive too. Basically, you want the RPMs to be about 2000 to 2500 for best efficiency at the speed you want to cruise in. As well as to pass
Ddaddy
Just doing what I do
I already told you the correct rear gear ratio. For max performance with that trans for both on and off the track.
I know. I seen it after I typed that
Ddaddy
Just doing what I do
It’s not that simple. Your best cruising speed is related to the engine power band, not a random RPM.
Yeah but even given that, you don't wanna be spinning it at basically a hair above 1500 either
Very true, that's just a basis that is the common band for "most" street engines
LOL just over idle!!!
Ddaddy
Just doing what I do
You can do the math. What will the engine RPM be at various final drive ratios? How much power will that give you?
I did, very low RPM.s Might not do anything, just wondering out loud...Thanks all....
Not really. Unless you wanna swap to a t56. I mean you could go to one of the 4 speed OD autos, but I'm not a fan personally just cause you'd have to have it built up to handle the torque of that 340 you have
408 stroker not a 340. over 500 FT lbs torque...
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