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JEGS Transmission Crossmember TH350

555-640600


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JEGS 640600
$123.49
More than 10 available
Transmission Crossmember
  • TH350
  • 1978-88 Malibu/Regal/Cutlass/Monte Carlo/Grand Prix/GN
  • Does not fit Cutlass Supreme or El Camino Models
  • Free Shipping - Ships
    Save $10 off $299, $20 off $599, $30 off $799, $100 off $1,599 Orders. Promo Code: SUMMERFUN exclusions apply
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    Does JEGS 640600 fit your vehicle?

    Narrow Results

    1980 PONTIAC GRAND PRIX

    • Liter: 4.9
    • SubModel: LJ
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 301
    • Engine Type: V8 ( 4.9L / 301 )
    • Engine Vin: Y

    1980 OLDSMOBILE CUTLASS CRUISER

    • Liter: 5.7
    • SubModel: BROUGHAM
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: N

    1982 PONTIAC GRAND PRIX

    • Liter: 4.4
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 267
    • Engine Type: V8 ( 4.4L / 267 )
    • Engine Vin: J

    1979 CHEVROLET MALIBU

    • Liter: 4.4
    • SubModel: SPORT
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 267
    • Engine Type: V8 ( 4.4L / 267 )
    • Engine Vin: J

    1979 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: CLASSIC ESTATE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: V

    1984 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: N

    1979 CHEVROLET MALIBU

    • Liter: 4.4
    • SubModel: ESTATE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 267
    • Engine Type: V8 ( 4.4L / 267 )
    • Engine Vin: J

    1981 OLDSMOBILE CUTLASS CRUISER

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: N

    1983 PONTIAC GRAND PRIX

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: R

    1983 CHEVROLET MONTE CARLO

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: N

    1982 BUICK REGAL

    • Liter: 5.7
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 350
    • Engine Type: V8 ( 5.7L / 350 )
    • Engine Vin: H

    1980 OLDSMOBILE CUTLASS CRUISER

    • Liter: 4.3
    • SubModel: BASE
    • Aspiration: NATURALLY ASPIRATED
    • CUI: 260
    • Engine Type: V8 ( 4.3L / 260 )
    • Engine Vin: F
    640600 is rated 3.5 out of 5 by 33.
    Rated 5 out of 5 by from Nice looking part I had made my own double humped cross member years ago. I did not purchase one years ago because they originally weren’t made. Then as the first ones came out they looked awful. I stumbled across a picture of this one and on a whim I thought it was much better than the one I made years ago for myself. I got the crossmember in lightning time and looks and quality are very much like what I hoped for. Highly recommended.
    Date published: 2020-04-06
    Rated 5 out of 5 by from Worked awesome for my 86 cutlass supreme Just got done bolting it in went in pretty good just had to elongate the mounting hole on the frame just a smidge
    Date published: 2020-03-19
    Rated 5 out of 5 by from Fit exactly like advertise well made true bolt in. Very happy thanks
    Date published: 2020-02-07
    Rated 5 out of 5 by from Very Convenient I bought this part as a Birthday gift and he was very pleased!! It was easy for me to find and look out being that I know anything about car parts!! But I was so excited myself that it was the correct part. lol
    Date published: 2019-07-18
    Rated 5 out of 5 by from Great site an products this design is 100 I got it about a month ago and love the structure! Bolts rite up an fit great an looks way better than that old greasy rusty bar ! Great product
    Date published: 2019-07-08
    Rated 5 out of 5 by from Turbo 350 Crossmember I had searched for several days to find a good transmission cross member for my 1980 Malibu Wagon. When I searched on JEGS.com, I found this #640600 cross member at a very good price. The cross member is constructed very good and the installation was tedious, however, when installed it fit great and our new JEGS dual exhaust for G-Body fit very well through the cross member. I would recommend this product!!! Thanks JEGS!!!
    Date published: 2019-05-04
    Rated 5 out of 5 by from Fit perfect Replaced engine also the transmission and needed a different crossmember. This transmission crossmember fit perfect.
    Date published: 2019-01-31
    Rated 5 out of 5 by from fit perfectly I used on my stockcar the original one was flexing this doesn't flex and fits perfectly very strong and built well
    Date published: 2017-08-23
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    Have a 1979 Buick Regal with a V6 would it fit a 350 transmission

    Asked by: Geo951
    Yes, this should fit your Buick Regal.
    Answered by: Rusty B
    Date published: 2020-03-24

    I have a 1981 El Camino with a four speed trans and I need a cross member for daul  exhaust  why does this fit the  El Camino isn’t it the same as the 350 trans in length ? 

    Asked by: Jeff63
    This is not made to fit the El Camino, you may be able to modify it to work in your application.
    Answered by: Rusty B
    Date published: 2018-07-24

    I have a 78 Monte Carlo with a factory 4 speed (Saginaw transmission) .I now have a 350 and headers. I need the double hump (or double cut out) cross member in order to run dual exhaust. will this fit, if not do you have one that will?

    Asked by: 78 Monte
    These are the options we have your your Monte Carlo - https://www.jegs.com/p/JEGS/JEGS-Double-Hump-G-Body-Transmission-Crossmembers/3150980/10002/-1
    Answered by: Rusty B
    Date published: 2019-10-21

    Will this fit an 86 monte carlo ss with a thm200c trans????

    Asked by: JOJO85
    YEs, you should be able to make this crossmember work in your Monte Carlo.
    Answered by: Rusty B
    Date published: 2019-10-21

    What is the weight on this crossmember?

    Asked by: Dillon1999
    This crossmember weighs 13 lbs.
    Answered by: Rusty B
    Date published: 2018-06-22

    Im looking for a cross member that will work on my 95 chevy 1500 that i out a th350 in do you have any ghat will work

    Asked by: skydare1
    You will want to look at this page and measure the distance between the frame rails - https://www.jegs.com/p/Trans-Dapt/Trans-Dapt-Universal-Crossmember-Motor-Mounts/1088998/10002/-1
    Answered by: Rusty B
    Date published: 2018-05-17

    I have a 1978 chev. Malibu I am putting in a turbo 400 the crossmember will not touch the left frame rail any suggestions. Jerry

    Asked by: jerry woodie
    This part number is made to fit the TH350 transmission, you need this part number for the TH400 transmission - https://www.jegs.com/i/JEGS-Performance-Products/555/640603/10002/-1
    Answered by: Rusty B
    Date published: 2018-04-26

    Will it fit a 1980 Monte Carlo that had a swap from v6 to sbc?

    Asked by: Cory Dahlinghaus
    This is compatible with a 1980 Monte Carlo.
    Answered by: Jon Jegs Tech
    Date published: 2018-04-13
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