...Maybe at least SOME of the bolts can be ID'd. 2011 Impala LS

Transmission was taken out from the bottom by removing subframe and cradle. The mobile mechanic I had doing to work DESERTED ME and I had the car sitting too long at my complex and had to have it towed to a family members property...

Anyway the new guy I have willing to put in my replacement transmission gets ready to start the job and and ask where the bolts are for the bell housing to mount the tranny to the engine and I dont believe they are there 5either...also looked for torque converter bolts (-likely now found) buts stores closed early on me (Christmas eve) so the 26th we'll likely get some from the yard.

Are any the bell housing (should be 6 total? all identical?)? labels 3,6 and 8 appear to be the same length making 6 total with 4 identical and 2 unique ones, could these be my bell housing bolts im looking for? Although I heard on someone's removal video that they were 15 mm. these are all 18mm heads

TLDR,

everything necessary to remove transmission from the bottom was done by now missing mechanic, including but not limited to: air box, brakes (control arm and hub and rotors still attached to removed sub-frame), Sub-frame. Please identify any of the pictured bolts if possible.


must be the torque convertor bolts, they match the length of the one I purchase from parts store



notice the angled edges of these 4 nuts

 

As you know you're screwed but having been there many times I'll throw in a few clues. Keep in mind I haven't done anything newer than 2006 so this may not be 100%. You're on the right track matching bolts by length to form a set. The diameter will mean they could only go in certain places. As for length they usually screw in about 3/4" on bolts that are the size of your little finger. More for larger, less for smaller. The starter would be the exception, they are longer. Shove bolts through the starter until you find the 2 that sick out the other side about 1 1/2".
Bolts like your #9 (usually at least 2 of them) get torqued down and then they have a bracket or something on them with a nut to secure it so one of the nuts goes with each of those. I would expect it to be for the bell housing, up high on the drivers side where you can't reach, with a mount for the fuel lines on it. #1 would be your 3 torque converter bolts. They have to be installed before the starter. #18 nuts are just stamped out of tin so they aren't made to hold much. Commonly used on a piece of insulation or plastic splash shield.
Praying for you.

 

Thank you so much for replying. After a trip to the yard (may need another) I was able to confirm my bell housing/starter bolts 3, 6 and 9 = starter), subframe bolts/bushings configuration.

Now by biggest issue I believe is some wires, grounds maybe, going to the starter and transmission. I took a not so good pic at the yard but my wires are different but they all are two pairs of black with white stripe (1st pic)

There are a few other spots like what's shown in pix 2 and 3 below. Probably can get it with some trial and error.

BUT WHATS REALLY HOLDING ME UP atm is getting the RACK AND PINION back into the subframe (last pic

)




seems like one set of these should go to the bellhousing bolt that holds the starter on the bellhousing side (#9). Then then the other set onto the bolts sticking out of the transmission with a bracket on it (dead center of pic)