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Old 07-20-2018, 06:51 PM   #126
WEBBY1
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Re: HOW TO: Crossmember sectioning ...

I'm running spindles and mmw control arms. looks like you might have to notch the control arm for steering shaft?
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Old 07-20-2018, 07:00 PM   #127
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Re: HOW TO: Crossmember sectioning ...

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Originally Posted by WEBBY1 View Post
I'm running spindles and mmw control arms. looks like you might have to notch the control arm for steering shaft?
Iím all stock, going as cheap as possible. Yea probably I will do so after I slap cab back on and see exactly how much I need to knotch and where exactly
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Old 07-20-2018, 07:10 PM   #128
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Re: HOW TO: Crossmember sectioning ...

I've been trying to stay cheap through the whole thing. and I have 7k into it
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Old 07-20-2018, 08:40 PM   #129
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Re: HOW TO: Crossmember sectioning ...

One of a kind is "priceless"! In my neck of the woods it sure would be...
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Old 07-21-2018, 05:43 PM   #130
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Re: HOW TO: Crossmember sectioning ...

I went 1.5" and when I realized that I'd need to notch the control arm I ordered a no limit R&P kit. I don't like spending $1k on a single component but for the amount of work it would take to DIY a R&P I think it's worth it.

Whether the no limit kit will work with a pancaked crossmember is yet to be seen...
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Old 07-21-2018, 06:37 PM   #131
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Re: HOW TO: Crossmember sectioning ...

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I went 1.5" and when I realized that I'd need to notch the control arm I ordered a no limit R&P kit. I don't like spending $1k on a single component but for the amount of work it would take to DIY a R&P I think it's worth it.

Whether the no limit kit will work with a pancaked crossmember is yet to be seen...
Iíll save my $1000 and just weld some notches in
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Old 07-23-2018, 12:24 PM   #132
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Re: HOW TO: Crossmember sectioning ...

Yeah I think if you're fine with the stock steering there's no need to go R&P -- in my case I was going to convert in the future anyway, and just didn't want to waste the effort getting the stock steering to work now only to upgrade it later.
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Old 07-24-2018, 05:53 PM   #133
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Re: HOW TO: Crossmember sectioning ...

Nvm
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Old 07-26-2018, 06:42 PM   #134
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Re: HOW TO: Crossmember sectioning ...

The X-member on my dually is notched 1.5" (89 Square body). The lower a-arms are PB 1" forward units but I originally had the modified OE lowers moved forward .750".

My set-up did require the small notch to the upper driver a-arm as mentioned. MMW uppers & later model OE uppers also had too large of an OD @ the bushing area & would not have cleared (I still have the MMW arms sitting in a box on the shelf three years later ).

When I'm air'd out, I can slip a slim piece of cardboard between the shaft/notch (like a spiral notebook cover).
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like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 07-27-2018, 02:06 PM   #135
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Re: HOW TO: Crossmember sectioning ...

Quote:
Originally Posted by SCOTI View Post
The X-member on my dually is notched 1.5" (89 Square body). The lower a-arms are PB 1" forward units but I originally had the modified OE lowers moved forward .750".

My set-up did require the small notch to the upper driver a-arm as mentioned. MMW uppers & later model OE uppers also had too large of an OD @ the bushing area & would not have cleared (I still have the MMW arms sitting in a box on the shelf three years later ).

When I'm air'd out, I can slip a slim piece of cardboard between the shaft/notch (like a spiral notebook cover).
Out of curiosity why did you ditch the factory lowers?
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Old 07-27-2018, 02:46 PM   #136
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Re: HOW TO: Crossmember sectioning ...

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Out of curiosity why did you ditch the factory lowers?
When I cupped the arms, I allowed for ~1/2" of clearance on my mock-up bag @ 25psi. Installed, the weight of the BBC plus those heavy hubs expanded the bad more than I liked (my clearance was about the thickness of a yardstick). I felt once the suspension started moving around, the bag would likely make contact.

I opted for Porterbuilt arms as they would swap right in place, had the forward placement option, & already had a tab for a sway bar (I still had to figure that out for the modified factory lowers as the original mounting position was no longer an option).
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 08-07-2018, 10:57 PM   #137
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Re: HOW TO: Crossmember sectioning ...

I too tried this and failed. Now i have to make my own motor mounts for my 292

nevertheless, it is an awesome write up
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Old 08-08-2018, 11:40 AM   #138
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Re: HOW TO: Crossmember sectioning ...

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I too tried this and failed. Now i have to make my own motor mounts for my 292

nevertheless, it is an awesome write up
Failed how?
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 08-08-2018, 02:53 PM   #139
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Re: HOW TO: Crossmember sectioning ...

well it isnt a complete failure cus it looks cool and i made it work but im having a hard time leveling the engine and making motor mounts. So i went to put in a spare c20 cross member i had and its not the same. they are different
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Old 08-08-2018, 04:07 PM   #140
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Re: HOW TO: Crossmember sectioning ...

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well it isnt a complete failure cus it looks cool and i made it work but im having a hard time leveling the engine and making motor mounts. So i went to put in a spare c20 cross member i had and its not the same. they are different
The way the x-member in this thread was sectioned should not alter the MM tower dimensions. Makes me wonder how yours are not working? I've done 4 of these & all re-used the MM towers w/o issue. One even used aftermarket MM towers & they fit/worked w/no problem.
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 08-12-2018, 02:00 PM   #141
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Re: HOW TO: Crossmember sectioning ...

they bolt on just fine the problem is that i too have to section them as well to bolt on to the motor...

unless i make up the difference from the frame to the engine with some square tubing which i found out about yesterday

Quote:
Originally Posted by SCOTI View Post
The way the x-member in this thread was sectioned should not alter the MM tower dimensions. Makes me wonder how yours are not working? I've done 4 of these & all re-used the MM towers w/o issue. One even used aftermarket MM towers & they fit/worked w/no problem.
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Old 08-13-2018, 11:42 AM   #142
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Re: HOW TO: Crossmember sectioning ...

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Originally Posted by rudyyloverboiii View Post
they bolt on just fine the problem is that i too have to section them as well to bolt on to the motor...

unless i make up the difference from the frame to the engine with some square tubing which i found out about yesterday
I think you did it wrong, the surface where the engine mounts should not have moved at all relative to the frame.
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Old 08-13-2018, 06:04 PM   #143
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Re: HOW TO: Crossmember sectioning ...

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I think you did it wrong, the surface where the engine mounts should not have moved at all relative to the frame.
Not so much 'wrong' since there's more than one method/version of x-member notching. But, if he did it the way this "How To" thread describes, the MM towers should not require mods unless an x-member from a different year model was used.
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 08-13-2018, 10:17 PM   #144
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Re: HOW TO: Crossmember sectioning ...

I think the issue is when you raise the steering up to keep the stock geometry. That's the problem I ran into with mine. My crossmember was sectioned 2" and raised the steering the same. I had to move the engine up to clear the drag link. When I had the 292 in it, I spaced the mounts up about 1.750" and chopped some of the oil pan. I've now switched to an LS and had issues with the crank pulley hitting the drag link. I have the mounts spaced 1.5" and used dirty dingo sliders on square body clamshells. It took some moving around but I think I have the engine in a spot that they can coexist peacefully.
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Old 08-14-2018, 01:14 AM   #145
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Re: HOW TO: Crossmember sectioning ...

I didn't move the steering. I also limited things to 1.5" to avoid the domino effect. These trucks had geometry issues w/o modification. I didn't notice steering related issues until my Dually. But, that's my fault as I was super agressive on Caster (7-ish).
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 08-14-2018, 02:48 AM   #146
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Re: HOW TO: Crossmember sectioning ...

Quote:
Originally Posted by crakarjax View Post

Whether the no limit kit will work with a pancaked crossmember is yet to be seen...
Its been done.
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Old 08-14-2018, 10:35 AM   #147
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Re: HOW TO: Crossmember sectioning ...

Quote:
Originally Posted by crakarjax
Whether the no limit kit will work with a pancaked crossmember is yet to be seen...
Quote:
Originally Posted by MQUnlimited View Post
Its been done.
Post that info up if possible?

I've seen how they did their initial set-up for their R&P kit (notching the x-member @ the rail area only). I didn't think sectioning an x-member as described within this thread would work w/the NL R&P kit.
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....

Last edited by SCOTI; 08-14-2018 at 10:42 AM.
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Old 08-14-2018, 11:55 AM   #148
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Re: HOW TO: Crossmember sectioning ...

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Originally Posted by SCOTI View Post
Post that info up if possible?

I've seen how they did their initial set-up for their R&P kit (notching the x-member @ the rail area only). I didn't think sectioning an x-member as described within this thread would work w/the NL R&P kit.
I got my no limit kit and it looks like everything will clear with some modifications to the mounting bracket and steering linkage location, and probably frame notches for the R&P links. Side note, not super happy with the quality of this kit -- sloppy grinding on the rack, hoses installed crooked, plastic crossover line instead of metal... probably more to notice upon install.
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Old 08-14-2018, 12:09 PM   #149
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Re: HOW TO: Crossmember sectioning ...

Quote:
Originally Posted by crakarjax View Post
I got my no limit kit and it looks like everything will clear with some modifications to the mounting bracket and steering linkage location, and probably frame notches for the R&P links. Side note, not super happy with the quality of this kit -- sloppy grinding on the rack, hoses installed crooked, plastic crossover line instead of metal... probably more to notice upon install.
Ahh..... It could work w/further modifications.
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Building a small, high rpm engine
with the perfect bore, stroke and rod ratio is very impressive...
like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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