Possible GP crossmembers

Syclone#892

Member
HI Everyone:D

I am trying to see if there is enough interest for a gp for some torsion bar crossmembers.
This will be for the people that have switched to coilover front susp and want to remove that factory riveted in crossmember.

I have talked with Mike at RPM and he said he would be willing to make some real nice ones up if we got a bunch of people interested.

I do not know exactly the style that Mike is thinking of making or the price so just post here if you think you would like one so Mike can see how much interest so he could decide how to make them and what kind of price they would run.

If you are unsure of what I am talking about check the drivetrain forum and the crossmember removal post for an idea on what we would be replacing.

Any questions or comments please post here and hopefully Mike will be able to chime in on some details for us:D

Thanks!
 

sy#2921

BAMF
Re: Possible GP crossmembers

I am interested. Would like to see a prototype design/price if this were to happen
 

Loeryder

New member
Re: Possible GP crossmembers

interested.

provision for cat mount? was one question that came up in the past.

This is not the torsion bar member but the one in front ot it, or no?
The one my keys mounted t is gone, but there is a second x member that the t bars ran through.
Be nice to make that one tubular and lighter.
 

BigBadSmoosh

Picking fights on I-65 since 2013
Re: Possible GP crossmembers

you don't need one.. the torsion bar x-member comes out with a few bolt.. the one that is riveted in just has holes in it for the torsion bars.

besides removing the riveted in x-member will probably be a bitch to remove
 

Syclone#892

Member
Re: Possible GP crossmembers

Yes this is not the torsion bar crossmember but the one in front of it.

I found it pretty easy to remove the old one but depending on your tool selection it may be a little more difficult to remove.

Check the post crossmember removal in the drivetrain section as it talks about this crossmember.

Not sure on the cat mount, never had a factory cat and dont have one now:D
It bolts to this crossmember and not the trans crossmbember?

I will try and put up a pic of my Al Dustan one that fits horribly and will try and find a pic of one Mike has made so you could see a couple different ways of how it could be made. I personally like the one Mike made far better.

One reason I liked removing this is you can then remove the trans transfer case as an assembly. I need to pull the tc out of mine so this way I can pull the crossmember and slide the whole assembly back.
This is not an advantage for everyone though as it may not be safe to do that on jack stands.

Keep the comments coming!
 

George Blake

DONATING MEMBER
Re: Possible GP crossmembers

This would be nice for the 80e conversion guys. I'd be interested in one to see how they fit and work it into the instructions for the kits. Something you'll have to remember is that you'll get 50 "I'm in" and when it's time for money to move "something has come up" is pretty common. Do one, let me know, and I'll get it and put it in and give some feedback. The problem is if it has "cat converter" mounts, the guys that have gone with BIG exhausts will have issues getting it to fit. It would almost be better to do a crossmember and have a flange welded on it that a cat converter mount could be bolted to as an OPTION. That way they could be massed produced on CNC and still suit everyone that would need one. I for example have a 3" exhaust and the muffler and catalytic converter are NO where near where they used to be. It would be easier if it was set up so you just drilled new holes in the frame but would be nice if it used the "old" holes.
 

Syclone#892

Member
Re: Possible GP crossmembers

Yes I agree this would be a real good thing for the 80e guys.

I am thinking like george said for the cat mount either have nothing or make a separate mount for it.
I am running a 3.5 exhaust with a magna flow muffler so I have no need for the cat mount.

Hopefully more people can chime in so Mike can see there is interest and get the ball rolling for this:D
 

Syclone#892

Member
Re: Possible GP crossmembers

I got a little update today

http://www.sytyperformance.com/gallery-jeremy/index.htm
3rd pic is the style of crossmember Mike could make for us. If people do not like it I am sure he could make a differnet one but that one looks real nice plus you wouldn't have to buy a driveshaft loop then:tup:
As you can see in the pic that truck still has factory susp so this would also work on factory susp's:tup:

I need to talk to him but I believe he would be able to make a separate bracket to bolt to this for a cat mount for an added price.

Mike said he should be able sell these as a gp special for $175. That is a great deal considering I paid more for the crappy Dustan one that doesnt fit.

I have to double check with Mike but I believe this is chromoly also but can't say for sure till I hear back from him.

As George said this would be a great thing for people doing the 80e conversions.

We need at least 10 people to do this and maybe Mike will work something out if we get more.

Here are a couple pics of what Dustan sold me:(
http://rides.webshots.com/album/566268444ptgpgO

My dad and I are going to be the first 2 people on this so lets get the list going:D

1.Dave Syclone#892
2.Mark mark0076
3.Dave 1BADV6
4.Eric H-TOWN-Typhoon
5.Ry368 ?
6.PPI Typhoon
7.hrodgmc ?
8.Loeryder ?
9.Sy1356
10.George Blake

Wohoo we got all Ten
 
Last edited:

1BADV6

Donating Member
Re: Possible GP crossmembers

Dave,

You can put me down for one. There is a cat mount in that photo of Jeremy's crossmember. Hard to really tell if it's mounted to the crossmember or not.

thanks,
 

Syclone#892

Member
Re: Possible GP crossmembers

Yeah I noticed that, I am not sure if the cat mount is on this crossmember or the actual torsion bar crossmember. To me it looks like its on the torsion bar crossmember.
My truck as never had a stock exhaust so I don't know where the factory mount is:)
 

1BADV6

Donating Member
Re: Possible GP crossmembers

Dave,

It's hard to get much from that photo before it closes, but normally the cat mounts on two brackets attached to the forward riveted crossmember. One mount is horizontal and the other at an angle. They are located towards the rear of the transfer case. In that picture it looks like the crossmember is still in there along with the cat mounts and Mike added a crossmember behind it where the torsion bar mount usually is. I'm sure he could incorporate the cat mounts onto a similar crossmember that would replace the riveted one.

thanks,
 

ghettosled

SYTY SUPERSTORE
Re: Possible GP crossmembers

i'm paying attention to all the different opinions and hopefully we'll be working on a prototype crossmember combination in the next couple weeks. Gotta get under a truck and figure out the best way to go about it, since most of the stuff we have done has all been one offs for the 4l80s and coil over guys wanting driveshaft loops..

Once i build a prototype i'll post pics and evaluate building materials based on cost and overall interest. Obviously the more people we can have interested the more of a priority it will become and the cheaper the price will get. In regards to the cat/exhaust mount, etc we will start with a basic crossmember bar and we can weld or provision threaded bosses or mounting tabs for a cat converter mount, transmission cooler, driveshaft loop, etc.
 

1BADV6

Donating Member
Re: Possible GP crossmembers

Mike,

Sounds good, while you are under there how about looking into making a tubular bolt in 4L80E trans mount crossmember to match. I'd be interested in a few of them.

thanks,
 

Ry368

one mile = 5280 feet
Re: Possible GP crossmembers

I have to double check with Mike but I believe this is chromoly also but can't say for sure till I hear back from him.
I'd be interested in this if chromo as I plan on doing the rpm coil over kit this winter for some truck diet action and these crossmembers seem to be a good place too start......has any one made a tube style cross member for the spare tire holder/cross member or can this just be removed as well!?!? Now...if I could find a carbonfiber tailgate....I'd be happy:)!?!
 

Ry368

one mile = 5280 feet
Re: Possible GP crossmembers

Mike said he should be able sell these as a gp special for $175. That is a great deal considering I paid more for the crappy Dustan one that doesnt fit..

We need at least 10 people to do this and maybe Mike will work something out if we get more.

Here are a couple pics of what Dustan sold me:(
http://rides.webshots.com/album/566268444ptgpgO
Did you ever happen to weigh your old crossmember and the actual torsion bar crossmember when you did this dustin kit......just trying to get an idea on the weight savings this could tube style crossmember will be in addition to me doing the coil over kit.

thanks
 

Loeryder

New member
Re: Possible GP crossmembers

Was Dustan's a transmission crossmember?
What is that platform that is flat stock welded on there for?

And the RPM pic is a tad confusing not being able to see a wider angle shot.
That one looks like a rear driveshaft loop, or is that a front propshaft loop?
is that the gas tank in the left side of the photo or what?

I am more than likely "in" just need clarity on which xmember we are all referring to here.
I have coilovers and have entirely removed the torsion bar mount member.
There is still 2 members under the center my truck, one for the trans mount, then one in front of that.
That the torsion bars ran "through" and the cat mounts "to".
In the RPM pic you can still see that member in the background with the cat mounts still attached.
So that one looks like nothing more than a driveshaft safety loop to me.
 
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