72 and 73 body differances

[Z dreams]

Hello everyone,

I have a 73 body and a 72 parts car. After removing the engine and trans from the 72,I found that the bell-crank pivot is about 3/4 of an inch shorter in the 73 will a 73 bell-crank work?

Also the hole in the fire wall is larger on the 73, and no mount for the clutch slave plumping. Any other changes that I may need to know?

Thanks, John

[zKars]

The clutch slave plumbing bracket absence indicates that chassis was likely a automatic originally. Not a required item, but should fab up something similar to prevent flexing of the hardline at that connection point.

The flat top carbs on 73 have a slightly different pivot as you found and the mating bracket that pivots is correspondingly different but does the same job, other than that same-same, nothing important.

Only body difference other than internal strengthening in the doors and such is the front bumper mounts on a 73 are much larger and different and attach differently. 72 don't have the same frame holes to mout the 73 brackets, and the ends of the 72 brackets won't mount to the 73 bumpers, different position and spacing of the two holes. 73 does have the same holes to mount 72 brackets, so use the 72 bumpers if you can. Look better, fit closer. Nothing a little fab can't fix.

The wiring harnesses are quite different, at least in the connector plugs under the pass. dash.

[tamo3]

I think the distance between brake booster mount hole and crutch hole on firewall is different. '73 is wider than '72.

[Diseazd]

http://www.classiczcars.com/forums/thread40158.html

I did the swap a year or so ago.....this will answer most of your questions. It's a fairly easy swap. Guy

[Z dreams]

Thanks Guys,

I'll cut the slave bracket from the 72 and weld to the 73. My 73 is a bare bones body that came with few extra parts, so 72 dash =no harness problem I hope! I have not checked the brake master clutch spacing yet but will soon. Bumper brackets I knew were different, I have one from. the 73. I think I'll also weld in the smaller 72 harness fire wall hole.

Thanks again, John