BIY transmission holding bracket

Discussion in 'Tools, Procedures, and Testing trouble shooting' started by Grumpy, Mar 15, 2017.

  1. Grumpy

    Grumpy The Grumpy Grease Monkey mechanical engineer. Staff Member

    EVER CONSIDER BUILDING, RATHER THAN BUYING A TRANSMISSION HOLDING FIXTURE?

    http://nastyz28.com/forum/threads/home-made-transmission-fixture.234676/
    THERE'S A GREAT DEAL OF RELATED INFO IN THESE THREAD's
    http://garage.grumpysperformance.com/index.php?threads/tbucket-200-4r-transmission-project.7230/

    http://garage.grumpysperformance.co...ience-converting-a-4l80e-to-full-manual.5579/

    http://garage.grumpysperformance.com/index.php?threads/4l80e.11645/#post-54467

    https://www.ebay.com/i/132415307603?chn=ps

    IF your planing on rebuilding a transmission, it helps a good deal to have a decent work bench AND a transmission holding fixture,
    you can buy a transmission holding bracket off ebay for between about $130-$300 but if you own a decent welder and can fabricate and weld this is certainly within the range of projects most of us could design and build


    just a bit of info, if you want a new transmission,core for spare parts,
    I called the local "U-PULL-AUTO-PARTS"
    and the salvage yard quoted me $220
    for ANY AUTO TRANSMISSION I CARE TO PULL
    and I asked again, any auto trans regardless of make/model/year?
    and was told yes..
    but that trans does not come with a warantee its looked at as a core
    so Id be looking for a car/truck, source ,that had been in an accident as it had to be running to be driving,
    if the car/truck you pull it out of,
    is undamaged it MIGHT be in the salvage yard,
    because the trans failed.
    Id also look to see if theres indications,
    the car/truck had been under water or in a fire,
    that might have damaged the transmission



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    Last edited: Jun 13, 2018
  2. Grumpy

    Grumpy The Grumpy Grease Monkey mechanical engineer. Staff Member

  3. Grumpy

    Grumpy The Grumpy Grease Monkey mechanical engineer. Staff Member

    I own a serious MILL and welder, so its not like I don,t have options or the skills to build a simple transmission holding bracket,
    but I had one of my friends over last evening and we were discussing, what materials we might need,
    to grab before we jump off the proverbial dock, head first into the project and after adding up the cost of materials
    you might be surprised to find the cost savings may or may not be as significant as you might imagine.
    obviously if you don,t have access to a MILL, drill -press, welder and know where you can purchase the materials required,
    you may be far better off simply purchasing the tools.
    you may have access to a great deal on the materials or have the basic components already in your shelf stock, in that case if you have the fabrication skills and tools its a no-brainer to build rather than buy!


    https://www.700r4transmissionhq.com/identifying-a-700r4/
    Home › Identifying a 700R4
    Identifying a 700R4
    To the untrained eye, nearly all GM automatic transmissions look the same. They are all made out of aluminum (with the exception of the very early Powerglide), they have the same bellhousing bolt patterns, and they have very similar case designs. There are some things that you can do to make sure that you are properly identifying the 700R4. It’ll look most similar to the 2004R at first glance. If you need to start from scratch, try this old article from Hot Rod.

    If you find a 4L60, you’ve found a late 700R4. They are the exact same transmission. However, the 4L60E is physically similar, but not easily substituted for it’s earlier counterpart. If you see the term MD8 stamped on the passenger side of the case, right by the bellhousing.

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    Using the pan bolt pattern, as well as the number of bolts, is the easiest way to achieve insure proper 700R4 transmission identification.

    700R4 Identification- The Easy Way
    The easiest way to identify a 700R4 underneath of the car is to look at the bolts. If you have a clear view of the transmission count the bolts. Did you count 16? If you did you have found a 700R4 or a 4L60. Remember, 4L60 was just another moniker for GM’s popular overdrive. You want to make sure that you don’t have a 4L60E on your hands though. In most cases if someone has told you that you are looking at a 700R4 and you count 16 bolts you can be reasonably sure that you have found what you were looking for. But to be sure check to see if the long “TV-Cable” is attached to the Transmission. If there is none look at the tail shaft. If the speedometer cable is mechanical than you have a 700R4. If it has wiring coming from it you are looking at a 4L60E. Sometimes when people don’t really know what they are looking for, they will search for MD8 transmission. MD8 is stamped on the passenger side of most 700R4 cases.

    700R4 Identification- With the Identification Tag:
    Lets say that you have found a transmission at a swap meet, on Craigslist, or at the salvage yard. Many people want to know exactly what year the transmission came from, and what vehicle it was in.

    The first digit of the Identification Tag will be the model number. It is not intuitive. The first units were for the 1982 model year. So you would expect the first model year ID number to be either 2(for 82) or 1, right? It’s not. It starts with a 9 and then jumps to 3.

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    You’ll find the plate right at #1 on the image.

    The model years are as follows:

    Year Manufactured:
    0=1990
    1=1991
    2=1992
    3=1983
    4=1984
    5=1985
    6=1986
    7=1987
    8=1988
    9=1989 or 1982



      • The second group of digits is the Model indicator. It’s two letters.
      • After the model the next area of the tag is the transmission type. It is one letter. In this case M is letter code for 700R4. 82-85 are missing this entirely. Try using the method above to figure it out.
      • The fourth area is the plant that the transmission was manufactured in. It is one letter.
      • The fifth line in the code is the serial number of the transmission. If the serial number is ground off it’s likely that it was rebuilt by GM at some point.
      • The sixth line is the date of manufacture.
      • The seventh line is the shift in which the 700R4 was built.

    http://www.monstertransmission.com/Identify-Your-Transmission_ep_106-1.html
    dentify Your Transmission

    GM Transmissions

    GM Power Glide
    2 Speed Transmission
    1962-1973
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    GM Turbo 200 and 200C
    3 Speed Transmission
    1976-1987
    [​IMG]

    [​IMG]

    GM Turbo 2004R
    ( 2004R Transmission)
    Overdrive Transmission
    1981-1990[​IMG]

    [​IMG]

    GM Turbo 350 and 350C
    (TH350 Transmission)
    3 Speed Transmission
    1969-1986

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    GM Turbo 400TH400 Transmission
    3 Speed Transmission
    1965 and Newer
    [​IMG]

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    GM 700R4 (4L60) not 4L60E shown below
    700R4 Transmission | 4L60E Transmission
    Overdrive Transmissions
    1982 and 1992
    (700R4 & 4L60)
    1993 and Newer (4L60E)

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    GM 4L80E
    4L80E Transmission
    Overdrive Transmission
    1991 and Newer
    [​IMG]

    [​IMG]
    https://m.roadkillcustoms.com/popular-automatic-transmission-identification-chart/

    http://www.hcdmag.com/700r4-transmission/

    https://www.700r4transmissionhq.com/


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    heres the first place I looked (below)too get basic material cost on-line,
    your almost certain to do slightly better locally,
    so if you can fabricate your looking at less than $100,
    and at most a couple hours time, too accurately measure ,cut and weld -up,/build the trans holding bracket

    http://www.onlinemetals.com/basket.cfm
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    Ive seen advertised that these basic transmission holders, cost up to $400 PLUS
    heres a guy listing the same tool new for about $170 plus shipping ($200)

    https://www.ebay.com/i/132415307603?chn=ps

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    Last edited: Sep 7, 2018
  4. Maniacmechanic1

    Maniacmechanic1 solid fixture here in the forum

    I bought my Kent Moore Transmission Holder for $225 I recall in 2009.
    Just had to repaint.
    I like Pontiac SD421 Blue so thats what color it is still.

    Pretty good deal..on ebay today.
     

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