URGENT!!! PLEASE HELP!!!!????
 

I ordered a 9" rear end from Currie with a Traction-Lok center section with 3.70 gears and 31-spline heavy duty axles/housings. I have the stock 8" open rear end with 3.00 gears in it right now with the stock driveshaft. My question is: Can I use my original driveshaft with the new rear end? Or what all will I have to do to make them work together? I'm in a state of urgency because it is going to be here any time along with my new heavy duty leaf springs! Please help! Thanks in advance!!!

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'69 Coupe with 351W
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Edelbrock RPM intake, Edelbrock RPM cam, Edelbrock 750 cfm carb, Edelbrock lifters, Edelbrock double roller timing chain, Edelbrock valve springs, Accel coil, Moroso Blue-Max wires, Hedman headers, 2 1/2" pipe, glasspacks, Flex fan, Lakewood traction bars, C4, 9" Currie on order, 290hp-stock heads
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The Surgeon General didn't say anything about smoking your azz!!

does anyone know what I'm going to need to do to make this all work?

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'69 Coupe with 351W
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Edelbrock RPM intake, Edelbrock RPM cam, Edelbrock 750 cfm carb, Edelbrock lifters, Edelbrock double roller timing chain, Edelbrock valve springs, Accel coil, Moroso Blue-Max wires, Hedman headers, 2 1/2" pipe, glasspacks, Flex fan, Lakewood traction bars, C4, 9" Currie on order, 290hp-stock heads
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The Surgeon General didn't say anything about smoking your azz!!

Sorry, I don't really know. Just didn't want to leave you hanging. Is it a specific replacement for a mustang? Most race car stuff is all fabricated, meaning welding and cutting. I think it should go straight in. If the leaf spring mounts are in the stock location, it should bolt right up. The stock driveshaft will probably not work. If I remember right the 9 inch pumpkin sticks out further. Shortening or lengthening the driveshaft is no problem for any drivetrain specialist. You might want to put up a post in the Classic mustang section of this website. I don't think anyone here has much experience with 9 inch rear ends, cause the 8.8's can take a beating. Good Luck! Anyone else know?

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92 GT, 4:10 gears, centerforce clutch, 6# powerdyne blower, bbk h-pipe, flowmasters