bellhousing pattern/rear engine

[my8950]

Is there anywhere known that may have the pattern for the bellhousing to engine face/drawing dimension that someone here may know of?
If I want to make a flange to mount a different trans, or use different engine with the original Scorpio trans?

[brokencase]

I have scanned images of the bell housing for A4LD. No detailed drawings.

[andyofcolumbusmerkur]

Rear engine? Is this a typo or something?

[my8950]

Rear engine? Is this a typo or something?

rear of the engine? where the bellhousing mounts to the engine in the Scorpio as far as I know.
I haven't seen an engine where the bellhousing mounts to the front of the engine, front engine drawing, dimensioned.

[andyofcolumbusmerkur]

Rear engine would mean engine mounted in rear correct? So you want the shape of the bellhousing. As it attaches to the engine itself. For a second I thought you were actually changing fwd to rwd. Hey I have seen the fwd to rwd and awd conversions so anything is possible.

[brokencase]

Here is what I got...
FYI - early Ford Ranger 2.9L bellhousing is different than Scorpio. The Ranger had a different starter.

A4LD had swappable bellhousings. For example a Vulcan V6 (aka Taurus SHO) could be fitted by swapping to a Vulcan A4LD bellhousing from an Aerostar. There will be other mods involved, like adapting torque converter and flex-plate, and starter. Not to mention many other mods associated with such a swap.

Likewise the the 2.3L could be fitted to the A4LD. You could also swap the entire engine and manual T9 from XR4ti into the Scorpio easily. (This has been done)

The 4.0L OHV could also be fitted.

But if you are going for more power then you will probably need to have the A4LD rebuilt with suitable upgrades. There are trans rebuilders that will do this. Figure around $3k.

Manual transmissions are another story. If you want a V8 with a 5 speed then you are into shifter, driveshaft and trans mount modifications.

a4ldScorpio.jpg (83.68 KiB) Viewed 18865 times

[brokencase]

DXF... I make no claims as to the accuracy or fitness. It was vectorized from this photo:

https://www.burtonpower.com/engine-to-b ... v1280.html

the result then scaled such the the top two holes are 3.75 inches spaced.

The file units are millimeters

[andyofcolumbusmerkur]

That doesn't sound correct. I had a sel (not a sho) and it had the vulcan. The sho (and later other trims like the sel as an option) had the dohc not the sohc. On my older gen sho it was also not the vulcan it was the Yamaha/Ford version. The check the bellhousing pattern for early v6 ranger (cologne).

[brokencase]

I was talking about the early SHO with the Yamaha motor
https://shoforum.com/threads/3-0-and-3- ... rn.130339/

You can fit the SHO to the A4LD.
A T5 can be fitted with some additional adaptation http://www.britishv8.org/Other/NormanRest.htm
However, a manual trans Aerostar bellhousing is probably a rare bird.

You have to cut and MIG the SHO oil pan and re-route the oil pickup to clear the front cross member on the Scorpio.
You also have to flip the SHO intake 180 degrees. On a positive note, the a/c compressor is same as Scorpio.

But the earlier posts are for the 2.9L pattern

[andyofcolumbusmerkur]

Vulcan not aka sho.

[brokencase]

Vulcan bellhousing bolt pattern same as SHO bellhousing bolt pattern.

Here is an SHO motor bolted to an AL4D

100_6128.jpg (167.92 KiB) Viewed 18519 times

Here is a shot of the transmission before attached above.

100_0369.jpg (174.36 KiB) Viewed 18519 times

Here is the bell housing..

4LD19C.jpg (90.28 KiB) Viewed 18519 times

[andyofcolumbusmerkur]

I see what your are saying now, that the bellhousing is the same.

[andyofcolumbusmerkur]

Is there anywhere known that may have the pattern for the bellhousing to engine face/drawing dimension that someone here may know of?
If I want to make a flange to mount a different trans, or use different engine with the original Scorpio trans?

Seems like you wouldn't need to make any special adapter or "flange" to do what you are considering.

[brokencase]

Correction - I previously said AOD or A4LD. It's just the A4LD.

I was reading the article below, but the article is wrong. I checked and 93' Aerostars never came with an AOD trans.

But it bears mentioning that the Aerostar A4LD's have some upgrades vs. the A4LD in the Scorpio. Mainly because the Aerostar was heavier and could be had with the 4.0L V6, not to mention what was learned from the failures of the earlier A4LD's.

I don't think a later A4LD is a drop in for the Scorpio. Around this time Ford was starting to have the ECM control certain aspects of the automatic transmissions. However many of the mechanical upgrades are swappable into the earlier A4LDs. In addition, parts from the later 5R55E transmission (like that on the later 210hp SOHC 4.0L) are also swappable into the A4LD. There are also aftermarket improvements for the clutch packs.

This is why you should send the trans out to an A4LD specialist like PATC:
https://transmissioncenter.net/product- ... a4ld-ford/

It is also worth mentioning that the Scorpio A4LD has it's own unique tail housing.

transplant1.jpg (155.64 KiB) Viewed 18483 times

transplant2.jpg (119.66 KiB) Viewed 18483 times

transplant3.jpg (96.33 KiB) Viewed 18483 times

[my8950]

Is there anywhere known that may have the pattern for the bellhousing to engine face/drawing dimension that someone here may know of?
If I want to make a flange to mount a different trans, or use different engine with the original Scorpio trans?

Seems like you wouldn't need to make any special adapter or "flange" to do what you are considering.

How do you figure?