GM B-Body Forum, 77-79 Caprice/Impala Forum

Join Now If Your A 1977- 1979 Caprice or Impala owner or other GM B-Body owner!!!
Like us on Facebook https://www.facebook.com/BBodyForum?ref=hl

Join the forum, it's quick and easy

GM B-Body Forum, 77-79 Caprice/Impala Forum

Join Now If Your A 1977- 1979 Caprice or Impala owner or other GM B-Body owner!!!
Like us on Facebook https://www.facebook.com/BBodyForum?ref=hl

GM B-Body Forum, 77-79 Caprice/Impala Forum

Would you like to react to this message? Create an account in a few clicks or log in to continue.
GM B-Body Forum, 77-79 Caprice/Impala Forum

A forum for the owners and enthusiasts of General Motors B-Bodies from 1977-1990, but dedicated to the owners of 1977-1979 Impalas and Caprices. Join up now!


+5
solo79
hotwheelsboy28
Sweet Seventy9
79treemaster
GM B-Body Forum
9 posters

    Transmission Crossmember

    GM B-Body Forum
    GM B-Body Forum
    Admin
    Admin
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 756
    Join date : 2013-01-14
    Age : 32
    Location : Flint/Detroit, MI - Charlotte, NC

    Transmission Crossmember  Empty Transmission Crossmember

    Post  GM B-Body Forum Sat Jul 13, 2013 4:53 pm

    http://www.clearimageautomotive.com/chevy_impala_ss_tubular_transmission_cross_members.php has crossmembers for the 91-96 models for all types of trannys. I feel one of these could work for the 77-90 models with a little modification, but im not 100% positive.
    avatar
    79treemaster
    Active Member (Tier 2)
    Active Member (Tier 2)
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 78
    Join date : 2013-09-02
    Location : Huber Heights, Ohio

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  79treemaster Mon Nov 04, 2013 12:44 am

    I gave them a call a couple weeks ago but they were not sure it would work. I will have to give them a call and ask them what the dimensions are for that crossmember.
    GM B-Body Forum
    GM B-Body Forum
    Admin
    Admin
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 756
    Join date : 2013-01-14
    Age : 32
    Location : Flint/Detroit, MI - Charlotte, NC

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  GM B-Body Forum Mon Nov 04, 2013 11:13 am

    i talked to Dan himself and he said it would not work, but i cant see why it wouldnt, its the exact same frame, might have to drill new holes in the frame but that aint nothing, im gonna try it one day once i get time and money to do a tranny swap, id like to get a th400 in there also
    Sweet Seventy9
    Sweet Seventy9
    *Senior Moderator*
    *Senior Moderator*
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 973
    Join date : 2013-11-03
    Location : Upstate NY

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  Sweet Seventy9 Mon Nov 04, 2013 7:49 pm

    If it'll bolt into a bubble, it'll bolt into a box.

    For those that want to retain their overdrive, the TH400 and 200-4r have the same mount location.
    Sweet Seventy9
    Sweet Seventy9
    *Senior Moderator*
    *Senior Moderator*
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 973
    Join date : 2013-11-03
    Location : Upstate NY

    Transmission Crossmember  Empty Another X-member Source

    Post  Sweet Seventy9 Tue Nov 05, 2013 9:39 am

    I just got a response from Crossmembers.com -

         <snip>  

    "info@crossmembers.com
           Today at 9:10 AM
    Hello Randy,
    As for the GM "B" Body, I do make a crossmember for the 77-90 models with a 700R4 or 4L60 transmission.  Same unique patented design as our popular ""G" Body crossmember, and is a direct bolt-in installation.  I currently do not have this product on my website, but it can be ordered via phone, (330-753-5300) with a visa or mastercard, or we can email a paypal invoice for additional payment methods.  My P/N is RCB3-700, and it's priced at $279.00.  S/H to most states runs around $35.00.
    Best regards,"

    Kinda price-y if you ask me....... Sad

    Anyway, I put out some feelers and found out that GM made a TON of B-body dual exhaust x-members.  They were installed on ALL 94-96 impala SS, Caprice, roadmaster, and Cadillac Fleetwood's!
    Any of those cars in the junkyard/ CL parting out ad's will have one. Only the pre-1994 cars dont have them.
    The downside is that they were only for 700r4 - 4L60Es.
    Can probably still get a few from GM too.  Sorry, I don't have a P/N yet.  I'll keep looking.

    I was just thinking about something.. We're not alone in our need for a th350 x-member.  I bet if we get some type of petition or letter of interest with bunches of willing buyers names on it and submit it to the 2 x-member makers, we could get at least one of them to make a TH350 x-member.  Hell, it's just a matter of a different mounting plate on it.
    We'd have to get people on other forums involved to increase our numbers and better our chance of having it made, but that shouldn't be a problem.

    Any thoughts??


    Last edited by Sweet Seventy9 on Tue Nov 05, 2013 10:17 am; edited 2 times in total
    avatar
    79treemaster
    Active Member (Tier 2)
    Active Member (Tier 2)
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 78
    Join date : 2013-09-02
    Location : Huber Heights, Ohio

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  79treemaster Tue Nov 05, 2013 9:44 am

    I would not think there is much difference in a 700 R4 and Turbo 350-400 trans crossmember except for relocating it on the frame.
    Sweet Seventy9
    Sweet Seventy9
    *Senior Moderator*
    *Senior Moderator*
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 973
    Join date : 2013-11-03
    Location : Upstate NY

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  Sweet Seventy9 Tue Nov 05, 2013 10:28 am

    79treemaster wrote:I would not think there is much difference in a 700 R4 and  Turbo 350-400 trans crossmember except for relocating it on the frame.
    I personally have never done the swap, so I'm not positive weather it would work or not.
    Somethings telling me it won't work though or everyone would be doing it.
    avatar
    hotwheelsboy28
    Active Member (Tier 2)
    Active Member (Tier 2)
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 24
    Join date : 2014-01-11
    Location : Tennessee

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  hotwheelsboy28 Sat Feb 01, 2014 5:49 am

    I made my own for $91 fit like oem 400 turbo in a 80 Lesabre in the pic it wasn't finished, i put gussets on welded all the seams,cleaned and painted it, the black one is the modified 350 turbo crossmember which did not work they are positioned as they are suppose to bolt in the frame a big difference.


    https://2img.net/h/i1198.photobucket.com/albums/aa456/hotwheelsboy28/cars015.jpg
    solo79
    solo79
    *Senior Moderator*
    *Senior Moderator*
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 458
    Join date : 2013-02-06
    Location : Kentucky

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  solo79 Sat Feb 01, 2014 9:31 am

    hotwheelsboy28 wrote:I made my own for $91 fit like oem 400 turbo in a 80 Lesabre in the pic it wasn't finished, i put gussets on welded all the seams,cleaned and painted it, the black one is the modified 350 turbo crossmember which did not work they are positioned as they are suppose to bolt in the frame a big difference.


    https://2img.net/h/i1198.photobucket.com/albums/aa456/hotwheelsboy28/cars015.jpg

    Nice work on that cross member.
    Sweet Seventy9
    Sweet Seventy9
    *Senior Moderator*
    *Senior Moderator*
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 973
    Join date : 2013-11-03
    Location : Upstate NY

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  Sweet Seventy9 Sat Feb 01, 2014 9:33 am

    hotwheelsboy28 wrote:I made my own for $91 fit like oem 400 turbo in a 80 Lesabre in the pic it wasn't finished, i put gussets on welded all the seams,cleaned and painted it, the black one is the modified 350 turbo crossmember which did not work they are positioned as they are suppose to bolt in the frame a big difference.


    https://2img.net/h/i1198.photobucket.com/albums/aa456/hotwheelsboy28/cars015.jpg

    That's a nice looking piece!

    GM B-Body Forum
    GM B-Body Forum
    Admin
    Admin
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 756
    Join date : 2013-01-14
    Age : 32
    Location : Flint/Detroit, MI - Charlotte, NC

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  GM B-Body Forum Sat Feb 01, 2014 10:05 am

    Wow that looks great, nice job on that
    avatar
    hotwheelsboy28
    Active Member (Tier 2)
    Active Member (Tier 2)
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 24
    Join date : 2014-01-11
    Location : Tennessee

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  hotwheelsboy28 Sat Feb 01, 2014 6:11 pm

    Thanks!
    avatar
    hotwheelsboy28
    Active Member (Tier 2)
    Active Member (Tier 2)
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 24
    Join date : 2014-01-11
    Location : Tennessee

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  hotwheelsboy28 Sat Feb 08, 2014 5:10 am

    I also made my own solid engine mounts for the 455 Olds, oil distiribution block for gauge and dash light and the valve cover nuts. I modified the 307 ac brackets to fit the 455 with the smaller compressor,made my own spacer washers where ever I needed them. It helps a lot being a machinist.

    https://2img.net/h/i1198.photobucket.com/albums/aa456/hotwheelsboy28/DSCN0613.jpg

    https://2img.net/h/i1198.photobucket.com/albums/aa456/hotwheelsboy28/cars154-1.jpg
    GM B-Body Forum
    GM B-Body Forum
    Admin
    Admin
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 756
    Join date : 2013-01-14
    Age : 32
    Location : Flint/Detroit, MI - Charlotte, NC

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  GM B-Body Forum Sun Feb 09, 2014 9:38 pm

    hotwheelsboy28 wrote:It helps a lot being a machinist.
    Yeah it sure does, done a nice job on it all, looks really really good.
    avatar
    hotwheelsboy28
    Active Member (Tier 2)
    Active Member (Tier 2)
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 24
    Join date : 2014-01-11
    Location : Tennessee

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  hotwheelsboy28 Tue Feb 11, 2014 12:11 am

    Thanks everyone for the coments!
    mike tanzer
    mike tanzer
    Newbie (Tier 1)
    Newbie (Tier 1)
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 1
    Join date : 2014-06-28
    Age : 36
    Location : new york

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  mike tanzer Mon Jul 07, 2014 5:35 pm

    im a brand new member but i am already loving this forum! iwill make that crossmember work in my 77 with a th350
    solo79
    solo79
    *Senior Moderator*
    *Senior Moderator*
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 458
    Join date : 2013-02-06
    Location : Kentucky

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  solo79 Mon Jul 07, 2014 7:04 pm

    mike tanzer wrote:im a brand new member but i am already loving this forum! iwill make that crossmember work in my 77 with a th350

    Well, we're glad to have you! Welcome aboard.
    Myloth
    Myloth
    Moderator
    Moderator
    Helpful and Responsive Member!
    Very active with responding and helping other members with questions and concerns.
    10th Year Anniversary
    10 years of being a member on our forum!


    Posts : 638
    Join date : 2014-06-09
    Location : At the base of the Mountain (NY) Adirondacks

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  Myloth Fri Sep 05, 2014 8:37 am

    Those are pricey thankfully I have experienced fabricator who will help with mine. But it's not

    out of the ordinary I guess for those who want bolt-on there is a stiff price to pay especially that skinny tubular

    one for 300 that's not very good seems like half thickness of a control arm tube.

    http://www.clearimageautomotive.com/images/impala_ss_cross_member_4L60E.jpg

    Going to have one made up as well straight across for duals why they made the earlier ones like they did sigh.
    avatar
    Boogie1468
    Active Member (Tier 2)
    Active Member (Tier 2)
    5th Year Anniversary
    Celebrating 5 years of being our member!


    Posts : 21
    Join date : 2015-09-09
    Location : Davisburg, Michigan, USA

    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  Boogie1468 Thu Sep 10, 2015 4:03 pm

    The factory 94 and up trans crossmember is not a bolt-in in the 77-90 frame. The reason for this is the frame's inner rails have different brackets welded to them for the cross member mounting. However, the 94-96 factory crossmember is a two-piece stamped and welded assembly (not the one piece tubular design used in earlier models) and has designed in clearance for the left side exhaust pipe in true dual exhaust systems. This, in my opinion is worth using instead of hacking up the tubular CM, but you do have to fabricate and weld brackets to your side frame rails. Another advantage is you can then use th factory or aftermarket Pypes stainless dual system, and that makes a sweet set up.
    avatar
    Pace77
    Newbie (Tier 1)
    Newbie (Tier 1)
    5th Year Anniversary
    Celebrating 5 years of being our member!


    Posts : 7
    Join date : 2015-09-25

    Transmission Crossmember  Empty Crossmember

    Post  Pace77 Sun Sep 27, 2015 1:30 pm

    In need of a Crossmember for a 1977 B body for factory trans, but I wanna run Dual Exhaust. Help !

    Sponsored content


    Transmission Crossmember  Empty Re: Transmission Crossmember

    Post  Sponsored content


      Current date/time is Fri Oct 04, 2024 11:51 pm