I'm rebuilding my 69's gearbox, my parts list includes a 6 puck sprung hub clutch disc, aluminum flywheel and pressure plate. unfortunately my car needs both a dragster and a daily driver. You can see the performance specs below, im looking for a quick drag time, high top speed, and driveability.

 

I would go with 4.10, just stay off of the freeway.

 

Your best bet would be a transmission with close ratios (2.20:1 first) and overdrive, and some fat rear end gears to get you rolling. The close ratios will keep the engine in the sweet range, and the overdrive will make things more tolerable for street use. 4.11, 4.56, 4.88, 5.12; depending if you are running 1/8 or 1/4 mile, and how much freeway driving you plan to do. Make sure the chassis is set up to handle the power you intend to make.

 

thanks for the help Z28, i'll look into it

 

why dose it matter if u drive in the free way ??? just curious

 

With a 4.10s that engine is going to whine like a '****'!

 

ohhhhhhhhh one other question . . i want to upgrade my rear end . .it hums nasty . . do u know the web link for rear ends . . i have a rs .

 

What do you mean by upgrade? Like a 12 bolt or 9 inch rear?

 

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my bad im new to this . . I mean is there a different gear ratio something better than the ratio that came stock ? . . Dose that make any sense