R&C swap. Could someone please take two measurements for me?

I do not trust my "rear bumper bolt holes" as a point of reference. The outer one is not round, and the inner one is not centered in the outer one (two layers of metal there).

I am eyeballing that, but my holes do not appear to be even.

But, I seem to be 19-3/4" from the front edge of the frame rail to the front of the outer bracket, and 12-3/4" from the rear edge of the outer bracket and the "firewall" at the back of the wheel well (not the actual firewall but the vertical piece of metal in the wheel well at the very back.

Could someone verify these measurements for me?

The bracket is exactly 9" long.

 

For further confusion, on my part, when I place the items there, one is half an inch closer to the part of the frame rail that begins its downward turn, where it begins to get thicker.

I am assuming the framerails are symmetrical, but apparently, they are not.

But the front of the framerail and that vertical "firewall" ARE equal and symmetrical points of reference, for me.

 

What holes are the talking about? The later cars have 4 spots to mount the bumper shock.

 

Yep. A bunch of holes.

The ones I am measuring from are the ones that both big and small bumpers share.

The one directly above the bolt hole. See how odd shaped it is?

I would rather use a more reliable measuring point.

 

measure...inner and outer on both sides and get an average...I'm sure there is a + - margin of error...

 

That's because on a big bumpered car, that's just a hole, not a mount.
Here's what it looked like on my 73, before the swap.

 

Yep! Just a hole, nothing to mount to.

Doesn't measure from the two front holes with the threads in them. If so, no problem.

So, could someone measure from front of rail, to center of that rear most big hole for me?

Or should I just my measurements? I am WAY more comfortable using my penciled in measurements, and they still fall dead nuts on an even 1/4" mark on my tape, and still line up pretty close to those rear bolt holes within 1/16" or so.

 

yep...

trust me...the whole car is probably 1/2" out...

 

Symmetry on a maverick? Only if you build it into your car your self Scott. Are you trying to find the axle center line for the front wheels or the center line to mount the cross member to. What do you need this dimension for specifically??? I have my gutted mav project in the garage here (Its a 72 ) I could take a few measurments for you monday evening. Or you can pm me a number to reach you at, and we can go over the cars on the phone at the same time if it will help.

 

Centerline of the crossmember, before I weld it in. I think I will just use the penciled in numbers, in my picture above. That should put me within 1/8 or less of where R&C tell me to be, and I doubt that I will be able to install it cockeyed...it fits between the framerails pretty tight, and I doubt I could move one side forward or back 1/16 compared to the other side.

If someone has already installed theirs, and could run a tape measure from the front of the welded plate of the crossmember to the front edge of the frame rail, and could verify that it is 19-3/4 then I am ready to go.

 

I'm thinking the crossmember just centers the wheels in the fender opening...
I would...error...to the front of the car...more oilpan clearance...

 

the...transmission crossmember location (bolt holes are slotted) and length of driveshaft (has up to 1" forgiveness)...are the only things affected by this measurement...

 

I'm on the way out to check mine...

 

I'm back...let's see if we can do this another way being my car is together...
I measured...on top of the rail...front tip of rail (behind radiator support) back to the crossmember...18.5"
does this help?