7 1/4 TO 8 1/4 Swap

Dido what BW dart said...if you max out the suspension, you could hammer the yoke into the tranny. When i swapped my 7-1/4 to an 8-1/4, the driveshaft would not go into the rear u-joint at all, which made me shorten it. good thing, because if i did, it would have been a big mess!