Classic Mustangs (Tech)Technical discussions about the Mustangs of yester-year.
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The pinion on the 9" rear uses 1330 joints, your trans probably has 1310. If you want to keep your driveline you can replace the u joint at the diff with a 1310-1330 cross over joint, you can get them from a driveline shop.
Who cares how much horsepower it has, all that matters is how fast it goes!
Untested 331, lots of suspension, chewing up corners.
not always. my ford racing pumpkin uses 1310 on the yoke.
to determine to seee what u-joint you'll need you'll just have to measure the size of the new yoke in pumpkin. That is the distance betweeen the two tabs the joint sits in and the diameter of the cup that fits in there.
unfortunately the 1310 comes in 2 sizes.
1-1/8" cup dia and 1-1/16" cup dia. but both are about 3.25" long over the axis
i converted a 6banger rear to a 9" and by the time I had it all together i learned a lot about u-joints and sizes. in any case the 1330 will be stronger, but you can only mount it if the driveshaft and yoke are sized for it.
so measure the yoke in the 3rd memeber for what u-joint should go in there. if it's a new one the manufacturer can tell ya. if it's 1310 size the u-joint you had will usually fit. if you want to upgrade to 1330, you might have to change driveshaft (and yoke)
302ci, Edelbrock RPM heads, xe268h, 650 speed demon, Hooker Long Tube headers and Flowmaster 40s
Quick Performance Racing 9" rear, Moser axles, 3.5:1 trac-loc from FRPP and T5 transmission.
CSRP disc brakes front and FRPP discs back. http://www.gascc.ie
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