Zf5 crossmember
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Zf5 crossmember
Ok so I have a 94 turbo 7.3 idI which had a e40d in it I'm in the process of swapping a zf5 from a 96 powerstroke and was wondering about the crossmember, I have a crossmember from a zf5 truck and the flat part on the passenger side Matches up with a hole in the frame but the other side with the L shape to it on the drivers side had no bolt holes to be see except further back which I can't use because the transmission is shorter so do you just guess where the transmission needs to sit and drill new holes???
Logistics Pro
Joined: Sep 2007
Posts: 3,737
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From: Western Mass
Guessing is bad, if you get it sitting there crooked there is a good chance of eating u-joints or output bearings on a regular basis.
If you have one side lined up where it looks right with the transmission, measure the edge of it back (or forward) to something marked equally on both sides of the frame. Like another cross member, shock mount location, spring mount, body mount, etc.
That should get you a fixed reference point that you can measure to on both sides and get the crossmember square to the frame. Then make sure the transmission is sitting in the right place before actually drilling the holes.
If you have one side lined up where it looks right with the transmission, measure the edge of it back (or forward) to something marked equally on both sides of the frame. Like another cross member, shock mount location, spring mount, body mount, etc.
That should get you a fixed reference point that you can measure to on both sides and get the crossmember square to the frame. Then make sure the transmission is sitting in the right place before actually drilling the holes.
Cargo Master
Joined: Oct 2005
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From: NJ
I went from C6 to ZF5, using the C6 crossmember on an '86 F-350 4x4 and a C6 trans mount (thin). This crossmember is like yours, passenger side resting in the frame channel and drivers side with the L through bolted on the outside of the frame rail. Crossmember had to move a few inches, forward I think. Worked out that I could use the rear hole in the angle bracket on the pass side in the front bolt hole in the frame, and same on the drivers side L portion. I bolted those two in, center punched where the new holes needed to be using the crossmember as a template, then drilled. You may or may not get that lucky with the E4OD crossmember position.
i ain't rite
Joined: Mar 2005
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From: Marlboro Mental Hospital.
when i switched from ZF to C6 in my 88, the front ZF crossmenber holes aligned up with the rear frame holes.
then as Cory did, i center punched and drilled for new rear holes.
then as Cory did, i center punched and drilled for new rear holes.
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Well I found a gasser truck with a zf5 in it. it had a different crossmember in it, it had m50d stamped on it and it bolted right in the factory holes on my truck so I guess there's different crossmembers for zf5s?
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Ya that's what I read but it was definitely a zf5 in the truck I pulled it from, instead of having the the L on one side, the crossmember is flat on both side and had brackets attached to the top side of the frame which is exactly what I needed, it fit perfectly
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Logistics Pro
Joined: Sep 2007
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From: Western Mass
There are different designs on the sides of the crossmembers like you noticed. Some with L on one side, some with the brackets on both sides. Some cases there are two sets of holes on the crossmember for different transmissions, and you may be able to also turn the tranny mount 180° for a slightly different offset.
Ford liked to keep us guessing on that one... or kept reinventing the wheel for no apparent reason.
Ford liked to keep us guessing on that one... or kept reinventing the wheel for no apparent reason.
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May or may not be worth pointing out that it varies with 3/4 and 1 ton trucks as well. When I did my D60 swap (both 4x4, idi, zf5) 1-ton truck had the L shaped cross member and 3/4 ton had the standard flat one. So be sure to check driveshaft clearance as well if lengths change.
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