Finally decided on a trans-maybe

[Joey120373]

Jay, I would 100% buy an adapter kit from you if you made one, the 6R80 is the trans I decided on to put behind the FE in my 72 F250, and from what I have read, that trans can be built to handle a lot of power with just a set of clutches. HD shafts are available as well.

[gregaba]

Hi Jay
They said the trans was from a F150 5.0. They said their adapter would work on the Coyote 5.0 the 5.2, the 5.4 or any of the Mod motors.
Thanks for the sizes. I will get the measurements off my C6 in the shop and compare.
Greg

[gregaba]

Hi Jay
Here are the measurements from my C6.
I took them in the same order you did.
1-35 inches with long tailshaft
2-19 3/4
3-13 1/2
4-18 1/2
5-14 1/2
6-10 wide by 5 1/2
I took this with a measuring tape and the trans is on a cart so I couldn't turn it over to get exact sizes and I could not find my large caliper so these figures are not exact but very close.
This trans is for a 71 Ranchero 429 CJ. My FE trans is in another shop if it makes a difference.
Greg

[jayb]

Jay, I would 100% buy an adapter kit from you if you made one, the 6R80 is the trans I decided on to put behind the FE in my 72 F250, and from what I have read, that trans can be built to handle a lot of power with just a set of clutches. HD shafts are available as well.

Thanks Joe, but if that Bendtsen one works, I don't know why I would build a different one, unless an SFI flywheel wasn't available for their kit or something.  But if I do, I'll post it here.

[jayb]

Hi Jay
They said the trans was from a F150 5.0. They said their adapter would work on the Coyote 5.0 the 5.2, the 5.4 or any of the Mod motors.
Thanks for the sizes. I will get the measurements off my C6 in the shop and compare.
Greg

Right, in your original post you said you were looking for a V6 transmission, which is why I posted that info.  Looks like the V8 trans is what you would need.

[gregaba]

I did in fact but the other forum I found info about this  said the only trans that they made an adapter for was the v6 engine so that was what I was looking for.
I found the Bendtsen adpator by mistake while searching for the V6 adapter.
Went to their site and found the videos.
The reviews were good and even if there is no difference in the internals I would rather have a V8 trans.
Sorry for the misunderstanding.
Greg

[jayb]

Hi Jay
Here are the measurements from my C6.
I took them in the same order you did.
1-35 inches with long tailshaft
2-19 3/4
3-13 1/2
4-18 1/2
5-14 1/2
6-10 wide by 5 1/2
I took this with a measuring tape and the trans is on a cart so I couldn't turn it over to get exact sizes and I could not find my large caliper so these figures are not exact but very close.
This trans is for a 71 Ranchero 429 CJ. My FE trans is in another shop if it makes a difference.
Greg

I just pulled out an FE C6 and measured it; at the centerline of the shaft, the C6 is only about 8" wide, where the 6R80 is quite a bit thicker, and thicker for a longer distance.  Here they are side by side.  I think you'd need to cut the floor...

[gregaba]

thanks Jay
That picture is exactly what I needed.
I don't mind cutting the floor. It has all ways been a race car so it will never be a concours restoration. I don't think I will have to cut to much and hope the console will hide it.
I can fab a floor to fit it fairly easy.
I guess I need to start ordering parts and the trans so I can mock up the unit and see exactly what it will take to make it work.
If there is any interest in the conversion I can post some pictures when I start.
It will probably be in Oct. before I will be able to get on it.
Greg

[jayb]

I would love to see some pictures when you get around to doing it...

[gregaba]

No Problem.
I will document the whole install step by step.
I enjoy doing things like that.
Greg

[TomP]

I looked at adapting a T45 5 speed from a 99 Mustang to an FE, bellhousing is integral on those too.The Mod Motor pattern looks like it could fit the starter with a modified nose on a Ford Mini starter. Perhaps the Mod Motor starter?  Also using a 164 tooth ring gear on a cut down FE flywheel.
 Here is an FE and Mod Motor block plate overlay. Maybe if the tranny was rotated counter clockwise a little?

[ROBSREDFORD]

Jay fwiw I’m headed towards 6r80 for my FE

Spoke with these folks

Bendtsen's Speed Gems
806H S. Division St.           Waunakee, WI 53597
PHONE: (763) 767-4480

Guy I spoke with said no cutting on block

Give them call see if tell you the same

Rob

[jayb]

I saw their video and it is clear that the block does not need to be cut for their adapter setup.  Links to their videos are below.  First video is for installation of the adapter, which apparently works with several different transmissions, and the second video is 6R80 specific.

https://www.youtube.com/watch?v=_9f3BfZ9Le4

https://www.youtube.com/watch?v=hGvpTQiEJZM

[machoneman]

Wow, near as I've found, a brand new 6R80 tranny is over $7,600 right from the manufacturer. And I don't believe that includes a convertor. Throw in the FE adaptor and its gotta be closer to $8,500.

Mighty steep, I say!

[gregaba]

I have found 6R80's on the net from F-150's with converter for $585 shipped.
They all have about 100,000 miles on them.
I would prefer one from a Mustang GT and believe I can find a good low mileage one for about $800.
That makes the swap reasonable.
Greg