Here's the transmission mount tentatively installed. Notice that it has three mounting holes for the crossmember, and one of them is intended to line up with the factory mount hole (the center one). But at least on my truck, it didn't really line up. It was a little too low.
Thankfully the mount has provisions for two additional bolts to secure it even better to the crossmember, so that's how I plan to do it. I'll just drill a couple of new holes! It'll be even more sturdy that way, so it's not a big deal that the center factory hole didn't line up.
The fit over the crossmember was very good, and the transmission bolted right on (with a little nudging, since it had shifted some from the engine being removed and all). Since there are slots in the mount, it looks like it'd work for either a T18 or C6.
I decided to wait until the engine's in and everything's tightened up before actually drilling holes in the crossmember for the trans' mount. I figure I want to give it the opportunity of finding its ideal position before bolting it down. Do you think this is the best strategy?
Since Fordman requested less photos I'll put only one of the mount in context (above). Here are some links to more pics of the transmission mount:
http://www.robroygregg.com/Number50/IMG_8163s.JPG
http://www.robroygregg.com/Number50/IMG_8156s.JPG
http://www.robroygregg.com/Number50/IMG_8152s.JPG
http://www.robroygregg.com/Number50/IMG_8150s.JPG
http://www.robroygregg.com/Number50/IMG_8149s.JPG
Here are the installed motor mounts:
And here's a link to another motor mount photo, taken before I installed the polyurethane bushings:
http://www.robroygregg.com/Number50/IMG_8164s.JPG
Now that I've installed the motor mounts and tentatively installed the trans' mount, here are the special notes I've made:
- The motor perches use a combo of factory perch holes, other factory holes that happen to be there on the frame, and one hole that you have to drill from scratch. That's minor though because measuring for it, which would normally be the hard part, is taken care of for you--all you have to do is line it up with the other existing holes.
- The holes that are already there but weren't used by the factory for motor perches needed to be enlarged from around 1/4" to 3/8". I used a 3/8" drill bit for this and it was really easy.
- One of the holes that needed to be enlarged to 3/8" and used for the perch mount was the hole originally used by the fuel line clip. So the fuel line needs to be held down in some other way. I installed two additional frame clips holding it under the cab so I may not even need a clip under the engine. This is something to be aware of though.
- The factory trans' mount bolt hole on the crossmember didn't line up with the center hole in the Autofab mount on my truck. Perhaps it does line up on other trucks. This is minor, though, because the Autofab mount makes provisions for two additional mounting bolts. So I'll need to drill these holes with my 3/8" drill bit.
So are these mounts "bolt in?" I wouldn't call them that, but it depends on your definition. When I hear "bolt in" I think all I need to do is open the box, grab the part, and bolt it right on. Others could interpret "bolt in" as "doesn't require any welding." And these mounts certainly don't require any!
So far I'm very impressed! Of course I'll keep ya'll updated on how the mounts perform when the truck's on the road!
Thanks!
-Robroy