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  1. B

    T87 Swaps

    @kidturbo im going to be down in Logan on Monday 19th. If you want to get together and get some live data.
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    T87 Swaps

    33000-1004 is the molex mating terminal I’ve been using.
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    T87 Swaps

    Yeah seemed kinda odd to me why Molex would use a Yazaki terminal and seal but they are sister companies so best guess as to why.
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    T87 Swaps

    The two corner pins for power and ground are Yazaki #7116-4152-02 and the seals are #7158-3113-40. The rest of the pins Molex #34736-0028 which only seem to come in a reel or cut strip through Mouser but I haven’t checked with anywhere else yet and those cavities have a built in seal. The cavity...
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    T87 Swaps

    I actually have all the part numbers for the plugs both left and right hand, plug covers, the pins, cavity plugs, and pin seals for the power and ground terminals. I have them all coming to have in stock. No sense in searching bone yards that will let you cut out plugs when it really doesn’t...
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    T87 Swaps

    So I found it. The t87 plug number for the LML would be 34822-0013 And for the lmm 2010 and older trucks since the module goes up and down vs side to side we would want to use plug number 34822-0023 This swings the latch the opposite direction and exits the wire the other way as well but the...
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    T87 Swaps

    Took a second to set the t87 into the bracket and onto the lmm fan shroud. I did notice the wire exit is going toward the fan lm the lmm where on the lml fan shroud it’s going down because the tcm is turned 90 degrees but shouldn’t be an issue and I have to do some looking but I’m pretty certain...
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    T87 Swaps

    The way I did this one it bottoms out to the same depth as the original sensor parts. That goes all the way down and bottoms out on an oring when you thread it in. While at Hicksville Auto we went to their rebuild area where they do the transfer cases and checked the sensor distance between a...
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    T87 Swaps

    Not really. That sensor is the wrong thread and as far as I could find it’s a vr sensor and not a Hall effect sensor. No different than what we currently have in there. It’s just the older 3/4” thread version for the 88-2000ish vehicles. I see your concern though. My other thought was when I...
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    T87 Swaps

    Alright. I’m guessing the 09-10 trucks with 4 wheel abs and stabilitrac may be less of a problem than the ones with out and 06-08. I need to drive my 10 down so you can get some data from it. On another note I was able to trim down the vss sensor like I had hoped without damaging it. Actually...
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    T87 Swaps

    @kidturbo just curious but have you tried a 15.5-16 t87 and LML calibration instead of a t87a and l5p calibration? I’ve been curious because of a few module changes in the LML trucks. In 14 they went to the new bcm that they used up through 19 I believe but all other modules besides the abs...
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    T87 Swaps

    The end of it is a smaller diameter. I didn’t have the other style thread in vss handy for measurements and didn’t feel like running to the shop last night. Going to run to Hicksville auto recyclers today and see if they have a junk 2016 tcase laying around that I can burrow for case measurements
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    T87 Swaps

    It is a M22x1.5 just a hair smaller than 7/8-18. That is where I have ran into a few issues with making an adapter. Luckily I have a rear transfer case half that was cracked laying in my scrap pile to play with. Problem is #1 the new sensor small end is the same size as the inside diameter of...
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    T87 Swaps

    Without going back and rereading a lot, are all the canbus messages to and from the tcm needing converted or just certain ones? I starting to think I just need to go from a drive that way and let you plug into my truck and do some testing. Need to run to Logan to Bazzel and get some race fuel...
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    T87 Swaps

    You are right. I just looked through testing and diag and the t87 protocol is testing against voltage vs testing resistance. Honestly didn’t realize they changed. Not very often you deal with a short to power or short to ground situation, usually it’s a sensor performance or broken wiring...
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    T87 Swaps

    It is looking for a specific resistance but it will still read even if resistance is high or low. We can disable resistance checking easy enough. Using a converter the only thing we would want active would be circuit performance. That would just be in case the converter ever started messing up.
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    T87 Swaps

    That is true but seeing where they are heading with the a40/50/t14 modules becoming obsolete and already in short supply and heavily over priced used and even worse new going for as much as $3000 even though they are $700 through gm if you can ever get one. I ordered a replacement a50/t14 back...
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    T87 Swaps

    @Cougar281 @Cougar281 I don’t think that will be much of an issue. The 07-10 Allison still has the PCS1 mainline solenoid. But they changed its design for 2011. Before it was more of an on and off and in 2011 they changed the valving and used the other style solenoid so it could use pwm to...
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    T87 Swaps

    @kidturbo where are at anyways? I can send you that new vss and pigtail if you want to do some testing with it. I tested it on my t87 and directly wired to the tcm it reads speed as expected. But the battery in my 440 scope crapped out so testing is a little limited at the moment til the new...
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    T87 Swaps

    So just to make sure I have this correct…. The ecm tos is accepting the same square Hall effect signal that the t87 uses as the output shaft speed sensor input in 5v form? So if this is the case then we can change the turbine sensor to the new one and leave the original vss alone and use a vr to...
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