Jegs transmission crossmember question

[WisconsinCutlass]

I'm starting to try and price out what it's going to cost me to put a 200-4r in my 88 cutlass supreme. I'm pretty sure that the th400 and 200-4r use the same trans crossmember. When on the jegs website I couldn't find a cross member for the 200-4r but found one for the th400. It states at the bottom that this cross member won't work with cutlass supreme or el camino. Why would this be? If this crossmember wont work for me any suggestion on other brand suggestions? Thanks

http://www.jegs.com/webapp/wcs/stor...tId=3162320&storeId=10001&sType=&pgGrp=search

 

[pontiacgp]

It says it only works with a SBC so I'm thinking they think all Cutlass Supremes come with a 307....but if you click on click to see all applications they list the Cutlass Supreme......I hope that unconfuses you..😎

maybe a phone conversation with them might resolve the contradition

 

[ssn696]

I bought this crossmember to put a 200R4 in my Malibu, and I was disappointed. It is a smaller dimension of rectangular steel than the original Jeg's crossmember I bought eight years ago for a TH350. In TH200-TH350 cars, it needs an extension on the driver's side, which I fabricated from rectangular tube (drilled four holes). The biggest problem is that it hits the floorboard under the driver IN A BIG WAY. The instructions caution that if your body bushings are 'mushed' you may have this problem. To my semi-trained eye, it looks like it was built wrong - the arch for the exhaust under the driver actually looks 'higher' than the one on the passenger side - this is where the factory catalytic converter is, sot the floor IS higher on that side.
I looked at it nine ways to Sunday to see if I could modify it. Then I decided to put new body bushings under the car. Then life got in the way.
So - it's only $139 - and it will fit your 200-4R. Jeg's does not explain why it does not fit the Cutlass and El Camino. I do know that later years of those cars came with the 200-4R, so I conclude that the frame holes won't line up. Except the Monte Carlo and Regals came with the 200-4R, so...I have no idea. Perhaps the pictures will help. I made a pattern, and plan to fab my own - when life allows. I may have a lightly used Jeg's crossmember for sale soon...

 

[1evilregal]

I have one in my regal with a 700r4, and just need to say that take note of what headers they recommend. I had to return a set of flowmaster headers and go with a set of hooker, because the arches were didn't line up with the profile of the collectors.

 

[Injectedcutty]

After looking at different options, i was sold on the g force x-member as it looked beefy enough to hold some power! I ended up buying the "summit" brand and when i opened the box it said g force on it!!! Its heavy as hell but definitely worth the $$$ it cost...and it looks good under my 87 cutlass as well!!!!

 

[pencero]

^ damn. I also subscribe to summit

 

[pontiacgp]

here is one that fits 1978-88 GM A/G-Body LS swap 4L60//4L65/4L70/4L80/TH400/2004R/T56/T56

https://www.holley.com/products/exhaust/parts/12644HKR

 

[ssn696]

Nice universal kit that includes the frame extension. The Summit/G Force design looks more rugged, costs less, but looks like it needs an extra-cost (or effort) frame extension.

 

[pontiacgp]

Nice universal kit that includes the frame extension. The Summit/G Force design looks more rugged, costs less, but looks like it needs an extra-cost (or effort) frame extension.

that looks identical to the one in the link I posted from Holley, do you know the brand name of the one you posted?. It may be cheaper if it is not carrying the Holley brand name.

 

[Injectedcutty]

that looks identical to the one in the link I posted from Holley, do you know the brand name of the one you posted?. It may be cheaper if it is not carrying the Holley brand name.

By the "hkr" suffix on the part # next to the pic, that tells me its the hooker part, so yep the holley pricetag is latched to it!