Our Community is 940,000 Strong. Join Us.


engine and tranny swap


bad pontiac
10-15-2007, 08:20 PM
:uhoh: hi everybody! i've got a 1984 parisienne and i swaped the old 305 and th-350 for a beeffy 350 and a th-400 the only problem that i have is the old cross member wont fit the th-400 (tranny mount not a the same place 6 inches further back)any suggestions?

MrPbody
10-16-2007, 09:38 AM
It's a common "swap". Move the crossmember back and drill new holes in the frame to bolt it down. Shorten the driveshaft the appropriate amount, and iunstall the TH-400 slip-yoke.... Shift linkage and the electric kick-down switch can be an adventure!

If there's not enough "room" for the crossmember, you may need to "notch" it, and move only the section that the mount bolts to. A good fabricator may be called for.

Jim

bad pontiac
10-16-2007, 06:03 PM
Thanks Jim for the reply, i might go with a custom made crossmember from g-force. looks like these guys have the part that i need. preciated your help.
Luke

Add your comment to this topic!