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1955-57 Chevy Transmission Crossmember Kits

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1955-57 Chevy Transmission Crossmember Kits

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Details

Reviews

Q & A

What's in the Box

On your '55-'57 Chevy car, the front motor mounts are at the front of the block and the rear mount attaches to the bellhousing.  This works fine for original use, but makes it hard to swap in a different tranny or add belt driven accessories to the front of the engine.  This mount kit is the solution!

  • Uses common mounts.
  • No welding, but drilling is required.

916-28910 Instructions (pdf)

Specs

  • End to end width = 32-7/8"
  • Center to center width (mounting holes) = 3"

Customer Reviews

Rated 4.4 out of 5 by 16 reviewers.
RATING BREAKDOWN
16 reviews
5 Stars
12
4 Stars
2
3 Stars
0
2 Stars
0
1 Star
2
RECOMMEND THIS PRODUCT:

kosracing
alberta
Product Rating

good but...

October 23, 2013
nice peice suggest they build it 1/4" narrower. the head of the bolts that mounts the ears to the frame are too big no clearance to drop cross member in had to grind my cross member to make room for the bolts
Yes, I recommend this product.
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coach
phx az
Product Rating

this product easy to install

September 29, 2013
I just finished installing this crossmember in my 57 nomad a great fit with 700 r trans,podwer coating is great, I have purchased many products from speddway motors clear back to the early 1960's always had good response on tech tips. ps I always recommend speedway motors Carroll Schmidt
Pros:
  • best place every for you speed needs
Yes, I recommend this product.
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Rswoodley
Chesapeake VA
Product Rating

Works Perfect and Looks GREAT!!

September 03, 2013
Looks awesome with the tubular control arms. Fit like a glove and very easy to install.
Pros:
  • Super easy
Yes, I recommend this product.
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Nate
Phoenix
Product Rating

Worked great!

March 07, 2012
This worked great however I would recommend welding the brackets to the frame along with the bolts. Those small self tapping bolts just dont dont seem to have the strength to hold down a high HP application.
Yes, I recommend this product.
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Mr. T
Verified Purchaser
Wisconsin
Product Rating

To the point

April 09, 2011
It worked!!!!
Pros:
  • Reliable
Yes, I recommend this product.
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Zimm
Verified Purchaser
Boise Idaho
Product Rating

Great Product

January 25, 2011
This crossmember is great, clears my 2 1/2 inch exhuast just fine. I am using it for a Tremec 6 speed Tranny and it looks like it should be fine, I am however converting the Tremec to a TH350 mount, but there are multiple bolt patterns on the mount. Very sturdy and adjustable, just a great piece!
Pros:
  • High-Performance
  • Can Withstand Use
Yes, I recommend this product.
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KD
Verified Purchaser
Chambersburg, PA
Product Rating

I would buy this product again.

February 11, 2012
Excellent exhaust clearance with this bracket.
Pros:
  • Powerful
  • High-Performance
  • Reliable
  • Can Withstand Use
Yes, I recommend this product.
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Joe
Verified Purchaser
Port Clinton, Ohio
Product Rating

NIce Quality, Great Fit!!!!

August 29, 2011
Great piece!
Pros:
  • Reliable
  • High-Performance
  • Powerful
  • Can Withstand Use
Yes, I recommend this product.
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TV
Verified Purchaser
Spokane
Product Rating

Good Product

July 31, 2010
Installed on my 55 chevy, fit perfect! [...]
Pros:
  • Way better than expected
  • Good product
  • Heavy duty
Yes, I recommend this product.
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Lost Fords
North Mississippi
Product Rating

Geart Project Trans Crossmember

July 26, 2011
Although this item is for the 55-57 Chevy,It worked great in My Model "A" Hot Rod Project with very little modification.Makes a excellent drop-out trans crossmember.
Pros:
  • Strong-well built part
Yes, I recommend this product.
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Page 1 of 2
91628910

Product Q&A

14 questions : 20 answers

1 answers

want to change trans I want to change a manual trans for an automatic what parts do I need and who does this kind work in the San Francisco area ?

Grandfather
Novato, CA, USA
February 16, 2015

want to change trans I want to change a manual trans for an automatic what parts do I need and who does this kind work in the San Francisco area ?

Answers

February 17, 2015
EricM
You will need a different shifter and/or steering column as well as kickdown linkage and a dipstick for the automatic transmission. The list can go on but those are the basics, however it highly depends upon the transmission you have currently versus the transmission you want to change to - not all automatics are the same length. Sorry we do not have a good recommendation for a shop in your area to perform the work. You should do some research and make a well informed decision. We highly suggest that you find someone to do the work before purchasing any parts. They will be a huge help in finding the correct parts as well as saving you expensive labor time if the items do not work together well.
1 answers

good morning my name is Bob looking at your crossmember the end pieces do they fit in top of the original frame which then allows the crossmember to drop down into the frame

BobP
January 04, 2015

good morning my name is Bob looking at your crossmember the end pieces do they fit in top of the original frame which then allows the crossmember to drop down into the frame

Answers

January 05, 2015
EricM
Yes the S shaped brackets will sit on top of the frame and drop down slightly. Then the crossmember rests on top of the brackets and is bolted down. You can see the complete installation instructions here: http://static.speedwaymotors.com/pdf/91628910.pdf
2 answers

Will this work with a 55 Chevy 2 door car with a SBC and a Muncie 4 speed? I am changing our my headers and I need to remove the factory trans mount. Will this work or what do you recommend? Also can I do this without changing out the front mounts?

GMAPGAR
Elliston, VA 24087, USA
July 02, 2013

Will this work with a 55 Chevy 2 door car with a SBC and a Muncie 4 speed? I am changing our my headers and I need to remove the factory trans mount. Will this work or what do you recommend? Also can I do this without changing out the front mounts?

Answers

September 04, 2013
Rswoodley
Yes will fit great with either manual or automatic
July 03, 2013
Jason
1955-57 had the bell housing mount for the trans and if removing those the cross member 91628910 would take it’s place. If you have the stock front engine mounts you may also want to upgrade to the later side engine mounts if your block is so equipped. Kit number 91018055 would be one example.
2 answers

what trans mount will work ? my trans mount has one stud in the center but the crossmember has 2 holes on each side ?.do i need to drill a hole in the center or get a different mount

smitty55
cuyahoga falls ohio
March 31, 2013

what trans mount will work ? my trans mount has one stud in the center but the crossmember has 2 holes on each side ?.do i need to drill a hole in the center or get a different mount

Answers

September 04, 2013
Rswoodley
Just drill a hole in the center
April 01, 2013
Jason
Some transmission mounts only have one bolt and for those applications simply drill a hole in the needed location on part number 91628910.
1 answers

Will this work for a 1957 Chevy 1/2 ton Pickup with a std. 3 speed trans.?

Jcars10
November 10, 2012

Will this work for a 1957 Chevy 1/2 ton Pickup with a std. 3 speed trans.?

Answers

November 12, 2012
Jason
This cross member is for the 55-57 Chevy passenger car and will not be a direct fit to the pickup chassis. We offer universal cross members such as number 91628903 and 91628904 which may be of interest for your application and also the bolt in ends number 91618010 which will eliminate the need for any welding. Verify drop needed for your application prior to ordering.
1 answers

1956 2 door with a GMPP ZZ383 and a Muncie M21 4 speed. Does this unit fit (standard motor engine mounts) or is the universal cut and weld a better option?

January 27, 2012

1956 2 door with a GMPP ZZ383 and a Muncie M21 4 speed. Does this unit fit (standard motor engine mounts) or is the universal cut and weld a better option?

Answers

January 30, 2012
John
Part number 91628910 This cross member would be the choice to use on your 1956 Chevy and a Muncie 4 speed. If you were raising or lowering the engine as compared to stock then there would be a need to change the transmission mount height also and in which case the universal cross member would better serve your needs.
2 answers

Will this cross member work on my 400 turbo on a 56 chevy sedan with 350 small block

December 02, 2011

Will this cross member work on my 400 turbo on a 56 chevy sedan with 350 small block

Answers

September 04, 2013
Rswoodley
It worked great on my 55 so should work fine. I also have a turbo 400
December 05, 2011
John
Part number 91628910 This cross member works with most GM transmissions including the 400 turbo and also works with both frame widths common to the Tri-5 Chevies. In some instances slight grinding for overall length may be required.
2 answers

Will this work with a 4l60e transmission in a 57 chevy?

October 15, 2011

Will this work with a 4l60e transmission in a 57 chevy?

Answers

September 30, 2013
coach
yes very well
October 17, 2011
John
Part number 7204175 This cross member has multiple holes for the transmission cushion. It can be used for the Turbo 350, 400, Tremec, and other transmissions. In some cases using the 350 mount on the transmission gives more versatility. Clears most larger exhaust and in some cases simple shimming on the brackets will give additional clearance.
1 answers

Will this product work with a B/B Chevy (454) installed in a '56 Bow-Tie Chevy, with a 4 speed manual Muncie transmision, with tight fit headers that were purchased from you folks. Clearance is tight, so tight that a hydraulic clutch is being used. This t

Perfesser
Stanwood, WA
January 10, 2011

Will this product work with a B/B Chevy (454) installed in a '56 Bow-Tie Chevy, with a 4 speed manual Muncie transmision, with tight fit headers that were purchased from you folks. Clearance is tight, so tight that a hydraulic clutch is being used. This t

Answers

January 18, 2011
Bill
This transmission crossmember part number: 91628910 will work with a Muncie transmission. Position the crossmember to fit the transmission location as needed and mount it to the frame.
1 answers

Will this work for a 700r4 transmission in a 57 chevy with a one piece frame

CB
St. Peters, MO
January 08, 2011

Will this work for a 700r4 transmission in a 57 chevy with a one piece frame

Answers

January 11, 2011
Craig
That crossmember part # 91628910 should work to put a 700R4 tranny in a 57 Chevy. You bolt the crossmember to the tranny and put the brackets on the frame bolted to the crossmember loosely and then mark and drill the holes to attach it to the frame. Then bolt it together tightly.
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