heres some food for thought... when I swapped my 258 for a 360 I used the mounts that were on the 360...which came out of a CJ...I cut the studs off of the mount...bolted them to the block, bolted up the trans...and set it on the x-member...then I leveled the motor...marked the center holes in the x-member on the mounts...pulled them off and drilled a 3/8" hole though them...ran to the ACE and got some 3/8" x 3.5" Grade 8 bolts...knocked them though the rubber in the mounts...put a nut on the back side and used an impact to run'em down...never had a single problem outta them...and people still don't believe it was like that... if you look in the pics section my car is in there...Bart put up pics of the motor and some of it in the car...that is how both of those motors were in the car...and I ran it into the 13.80's that way... the only reason why I changed was cause I was swappin motors so much and I wanted to see the difference from how I had it to how it was supposed to be...