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View Full Version : My Front Crossmember Notching


az03sonoma
04-18-2009, 10:45 AM
I'm in the process of notching my front crossmember. Now that I think about it, I wish that I would have taken more detailed pics... I will go back today and generate a few more pictures with measurements. The project has taken me about 8 hours through a span of about two weeks with a couple of hours hear and there. I took my time and set the motor in a few times to check clearances. Using the torch then cut-off wheel is time consuming and a plasma torch would have been nice, but I'm low on $$$$$ and my labor is cheap :10:

After setting the motor in a few times and widening the opening to what was needed, I made cardboard templates of the plates that I would need. I used 3/16" plate that I got a local metal supplier down the street. I went through their scrap pile and found a 1'x2' piece that I paid $6 for. I used a torch to do a rough cut and then used the grinder to get them close to the pattern. I fit the two sides first and then fit the front plate. It took some back and forth test fitting until I got close enough to be satisfied. I tacked them into place and then set the motor back in for a final check.



http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4950.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4952.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4951.jpg


I did not brace the frame, because I was not cutting the entire crossmember out and I had jack stands further back on the frame near the front cab mounts. I checked measurements at the frame before and after, nothing changed.

Pic of the motor and pan used.

http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4613.jpg

Test fit of the motor

http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4957.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4955.jpg


Made cardboard templates to cut the filler plates

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5006.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5007.jpg


Plates tacked in place

http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4981.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4984.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4983.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/Project%20S10/IMG_4982.jpg

more to come :cool4:

az03sonoma
04-18-2009, 01:36 PM
Final test fit of the motor before welding up the plates

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_4994.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_4996.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_4999.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5000.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5001.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5002.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5003.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5004.jpg

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5005.jpg


:10:

Diabolical
04-18-2009, 01:38 PM
Absolutely fine job!
You'll be glad you didn't use the plasma gun.
The plasma super heats the metal to the point its almost like hardened steel!
Then when you try to drill or cut using a cut off wheel.. it just eats up your
bits or pads..

Keep them coming..

Mike

az03sonoma
04-18-2009, 02:00 PM
Absolutely fine job!
You'll be glad you didn't use the plasma gun.
The plasma super heats the metal to the point its almost like hardened steel!
Then when you try to drill or cut using a cut off wheel.. it just eats up your
bits or pads..

Keep them coming..

Mike


Oh, I didn't know that... That's good to know. I'm trying to talk my brothers into getting a plasma cutter since I have bought a welder, tubing bender and Bend Tech Pro... They both have projects and we are helping each other out...

dand355
04-18-2009, 03:23 PM
:2thumbsup::thumbup:

az03sonoma
04-18-2009, 03:36 PM
Here are some measurements, after the fact...


From the center of the crossmember to the passenger side, I went 6 3/16" (shows 6", but includes the 3/16" plate...)

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5025.jpg

From the center to the driver's side, I went 5 11/16" (shows 5 1/2", but includes the 3/16" plate)

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5024.jpg

The passenger side was cut forward 3 3/16"

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5028.jpg

The driver's side was cut forward 3"

http://i74.photobucket.com/albums/i274/az03sonoma/IMG_5027.jpg

Joker
04-19-2009, 11:06 AM
I love these posts that include pictures like this,it makes things easier to understand Thanks alot for sharing!

jameskirk1
04-19-2009, 02:03 PM
x2 man - great post!!!

az03sonoma
04-20-2009, 12:29 AM
I love these posts that include pictures like this,it makes things easier to understand Thanks alot for sharing!

No problem :10: I wish that I would have taken more pictures... digital pics are cheap!

I never modified a frame before, so I thought that I would take pictures to capture the moment and seeing that there are other people asking about it, I thought it would be good to share my experience. Travis at s10dragracer suggested that I post it in the technical sections.

I hope that is helps out anyone willing to try it on theirs. It's not that hard if you take your time and double check measurements and clearances.

az03sonoma
04-20-2009, 12:29 AM
x2 man - great post!!!

thanks!:cool4:

lsx10
05-09-2009, 05:00 PM
looks really good man. keep up the good work

Diabolical
05-10-2009, 03:00 AM
Looks great! Now start tacking her up! ;)

Diabolical
08-03-2009, 12:25 AM
A very fine job bro ;)

sgblazer2
08-03-2009, 07:42 AM
nice job!!

spib
08-03-2009, 11:09 AM
excellent post!!!!!! what oil pan are you using?

Mad Max
08-04-2009, 08:49 AM
Custom.
You are totally right about one thing - if you take the time and don't rush, prep everything correctly, the job comes out great. I have seen so many hack jobs on vehicles by members of the ABU (Amalgamated Butcher's Union).
It amazes me that some of the hack jobs I have seen can even be driven let alone raced on a track. I can just see a rear end flying out from under a vehicle or a motor coming up through the hood :laugh4:
Nice job. :thumbsup:

az03sonoma
08-04-2009, 08:14 PM
excellent post!!!!!! what oil pan are you using?


I bought the Summit 7qt when they had 10% off. http://www.summitracing.com/parts/SUM-G3502/

Tony

az03sonoma
08-04-2009, 08:18 PM
Custom.
You are totally right about one thing - if you take the time and don't rush, prep everything correctly, the job comes out great. I have seen so many hack jobs on vehicles by members of the ABU (Amalgamated Butcher's Union).
It amazes me that some of the hack jobs I have seen can even be driven let alone raced on a track. I can just see a rear end flying out from under a vehicle or a motor coming up through the hood :laugh4:
Nice job. :thumbsup:

Thanks man! I've seen some pretty scary hack jobs myself, but in the offroad side of motorsports. Some of the desert races that I've been in, had some trucks falling apart after the first 10 miles of a 200 mile race...:laugh4:


Tony

spib
10-09-2009, 11:01 PM
excellent post and very good pics, mine is all cut out, still need to make templates and weld in the plate, but it is cut out, thanks again for post, my new pan for my new motor fit with ease!!!!!!

az03sonoma
10-10-2009, 09:23 AM
excellent post and very good pics, mine is all cut out, still need to make templates and weld in the plate, but it is cut out, thanks again for post, my new pan for my new motor fit with ease!!!!!!

Sweet! glad it was of help :10:

Post some pics of yours if you can. :cool4:

spib
10-15-2009, 08:38 PM
well its slowly getting done!!!!!! thanks again for excellent post!!!!!:rock:






http://i63.photobucket.com/albums/h139/spib/meloy%20toy/motorout036.jpg
http://i63.photobucket.com/albums/h139/spib/meloy%20toy/motorout035.jpg

az03sonoma
10-16-2009, 12:03 AM
Look'n good man! You're almost there! :10: When you're done, you'll look back and realize it wasn't all that hard. :rock:

Tony

Blacks10ss
11-01-2009, 10:26 AM
http://i115.photobucket.com/albums/n298/kenny231981/Black%20SS/DSC06121.jpg
http://i115.photobucket.com/albums/n298/kenny231981/Black%20SS/DSC06158.jpg

az03sonoma
11-01-2009, 10:44 AM
Looks good Blacks10ss :10:

I thought about doing mine that way, but I was concerned with trying to keep the two sides plumb and true. I bet you have no problem pulling the pan with the motor in. :rock:



Tony

*hotrods*
11-01-2009, 11:16 PM
Looks great! I did mine akmost exactly the same. It took a lot of time but was worth it in the end. I used a Canton pan with crank scraper and trap doors.

Diabolical
11-01-2009, 11:55 PM
Nice work guys!!

Blacks10ss
11-04-2009, 12:41 PM
Looks good Blacks10ss :10:

I thought about doing mine that way, but I was concerned with trying to keep the two sides plumb and true. I bet you have no problem pulling the pan with the motor in. :rock:



Tony

Thanks...

I had my buddy Dave do it at Afterhours Fabercation in Nj...He braced it all be fore cutting and re building has has built full frames before so I knew he was the man for the job...

Diabolical
11-04-2009, 06:31 PM
X2 on the bracing ..
You would be shocked knowing how many people just jump in and start hacking!!

Blacks10ss
11-05-2009, 12:00 AM
X2 on the bracing ..
You would be shocked knowing how many people just jump in and start hacking!!


I bet and that frame's front half is way outta wack...

spib
11-12-2009, 07:15 PM
Thanks again az03sonoma excellent post, I am done now need to figure out were to run front brake lines, excellent post, THANK YOU!!!!!!

az03sonoma
11-12-2009, 07:57 PM
Thanks again az03sonoma excellent post, I am done now need to figure out were to run front brake lines, excellent post, THANK YOU!!!!!!

No problem, I'm glad it helped :rock::rock: post some pics when you get a chance.

Let me know what you figure out on the brake lines. I think it will be a while before I get to that point :laugh4:

Tony

torq4u
04-05-2012, 04:12 AM
thanks az03sonoma been looking at my crossmember today seeing the offset and thinking don't cut it yet , now i see by your post .
awesome job!!

scottnadeau
04-09-2012, 12:51 PM
Ignorant questions time: What is the advantage of a motor plate as opposed to solid mounts? My guess is that is prevents or reduces frame twist. Also - what is a midplate, and what kind of changes are made when using one (does the bellhousing move backwards?)?

scottnadeau
04-09-2012, 06:57 PM
Never mind. I see that the plates he was talking about were not motor plates but plates for the notch. I originally read the thread at work and the photos were blocked...

blazaboy86
04-10-2012, 03:45 PM
can the crossmemeber be cut with something other than a torch.. I don't have a torch..sawzall or cut off wheel maybe?

torq4u
04-15-2012, 04:21 AM
can the crossmemeber be cut with something other than a torch.. I don't have a torch..sawzall or cut off wheel maybe?

i went after mine with a sawsall , cuts like butter :)