Gears & Axles - Can anyone tell me....

So last week i posted a thread about drive shaft's since I blew my stock one into 3 pieces at the track lol. Well my question is can anyone give me the measurments for the drive shaft? i am going to have one made from a place here in Denver and i dont exactly get how to measure one after reading a how to on how to do it. Plus the cars sitting in the rocks and i got new ink on my back so year slightly painful haha. The car is a stock 10 bolt with a M6 tranny. So can anyone help me out with the proper measurments?

Thanks

After doing some reasearch i drive shaft. It looks like from the center of the u-joint to the center of the u-joint is 40.5". Is this correct?

Or brute speed shows this for the PST Drag Racing 3" .083 Wall DOM Steel Shaft w/Slip Yoke (10 bolt/12 bolt 44-1/4" or 9 inch 45-1/4") seal to center PG1350 1350 UPGRADED SLIP YOKE PG Forged.
Can you explain this to me please?

Which number is correct?

After doing some reasearch i drive shaft. It looks like from the center of the u-joint to the center of the u-joint is 40.5". Is this correct?

Or brute speed shows this for the PST Drag Racing 3" .083 Wall DOM Steel Shaft w/Slip Yoke (10 bolt/12 bolt 44-1/4" or 9 inch 45-1/4") seal to center PG1350 1350 UPGRADED SLIP YOKE PG Forged.
Can you explain this to me please?

Which number is correct?

http://www.pstds.com/Images/driveshaft_measure_sm.gif
Dimension X is what our measurements are based off of. Bob

Can anyone please just tell me the measurement so I can get this ordered. I don't have access to my car and would love to get this made today. 10 bolt with a M6 tranny. Please and thank you!

tell them you need it made 44.25 from tailshaft seal to center of rear u joint. Bob

Thanks Bob!