transmission mounting hardware

[JJK]

I am planning to drop in the BPE 347 w/TKX transmission in the next few days and am unsure of the specific hardware to use. I received four 7/16"x1.25" and two 1/2"x1.25" bolts in a hardware bag in the same box as the engine mounts. I assume the four 7/16" bolts are to attach the engine mounts to the engine and the two 1/2" bolts are for the transmission mount, specifically to mount the transmission mount to the A frame. From what others have reported, I may need to increase these 1/2" bolts to 2" long and shim accordingly to get the proper angle. But, the question has to do with the transmission A frame mount and its hardware. The only thing that was with the A frame was the TKO/TKX mounting adapter bracket.
1. Although the book shows this adapter bracket with a drawing for a 4.6L/Coyote powerplant, I believe this is also needed for my setup. Correct?
2. Can someone please tell me what are the necessary bolts and spacers/shims used to attach the adapter together and to the transmission. There were none with the transmission mount or the A frame and these are not specified in the manual. Picture from book attached:

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3. What hardware is used to mount the transmission A frame to the car frame? Are these in my big box of random bolts, as they were not shipped in the same box as the A frame and are not noted in the manual. Picture from book attached:

182453

In summary, I do not know the hardware to put together the transmission mount (with laser cut adapter), attach this mount to the transmission, or attach the A frame to the car frame. As always, thank you in advance, you guys are so tremendously helpful.
JJ

[mmklaxer]

1. Not sure, as I'm installing a coyote, but the rationale for the bracket is because the coyote is shorter than a SBF. Worst case, you prop up the tail of the transmission and swap it in or out if necessary. My money is on NOT necessary. I just installed the part on my transmission, and saw lots of pictures of it NOT installed on SBF.

2. The polyurethane mount is attached with 1/2" x 13 bolts 1.25" and lock nuts that come in your fastener box. The part that mounts to your transmission (the slotted openings) use 1/2" x 13 1.5" bolts. You'll want a washer under the head of the bolt. ALso - many need some spacers to raise the transmission. Because of that I ended up buying 2" grade 8 bolts to go with the 3/4" spacers that almost everyone I've heard needs for my set up.

3. Havne't gotten that far, but will be watching for responses.

[phileas_fogg]

Sorry I don't have any answers to your questions, but test fit the transmission A-frame to make sure it fits the way you want between the 4" tubes. I had to grind a bit off the mounting tabs to get the A-frame into position. Better to find this out BEFORE the engine-transmission are hanging in the air.

Also, there are two schools of thought about the sequence of installing the A-frame. I installed it before the engine-transmission, and liked that a helper could lift the tail up onto it. Others prefer to install the A-frame after the engine-transmission is in place. Honestly, I don't think it matters a whole lot which sequence you choose, so pick the one that makes sense to you.


John

[JJK]

Thanks for the comments. Tech support from FFR said to use the adapter bracket if needed (no definitive answer) and to use the bolts that came with the A frame (which were not included). So, I guess I will find some from the big box of random bolts, or go pick up some grade 8 just to be safe.

[rich grsc]

Absolutely no need for grade 8 bolts

[CodeBrown]

JJK, did you ever decide which bolts worked for your A-Frame attachment? I have the same engine/tans combo with the same story and question at the moment. Thanks!

For what it's worth, I ended up just now using 3/8-16 x1.25 socket head up front and 1/2-13 x1.25 in back... It seems to fit and just above the 4" tubes for clearance - I am not sure if this leaves me a few bolts shy at the end, but we shall see!

[JJK]

not entirely sure of your question, but I ended up using 2" bolts instead of the 1.25" and spaced the tail of the transmission up by 0.75" to get a proper pinion angle