CPP Crossmember Install Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

C10agent · 03-09-2014, 05:58 PM

I promise I have looked through the board and I am not finding what I need. I picked up a CPP lowering crossmember for the rear trailing arms and was curious if I can do the install with the cab still on?? I am going to remove the bed for the C-Notch and other rear add ons. I have seen some install pics but the cab is always off in the pics. Any info would be greatly appreciated.

Thanks, Neil

RManson · 03-09-2014, 09:00 PM

I installed mine with the cab on, no problems.

Jfarns03 · 03-09-2014, 09:14 PM

Trust and believe you need a cutting torch for those rivets. I'm in the process of lowering my truck with CPP stuff right now.

RManson · 03-09-2014, 09:19 PM

Torch helps for sure, but a cut off wheel used to cross cut the rivets will aid in getting one side removed. Then just drive 'em out. A pneumatic chisel with a drift and chisel attachments and a pair of ear plugs will be your friend! Good luck!

C10agent · 03-09-2014, 09:19 PM

Well I have a dremel and a angle grinder-is it possible to get out with those? Any advice one getting those rivets out??

C10agent · 03-09-2014, 10:12 PM

I appreciate it!! I am going to be tackling the c notch and crossmember in the same weekend. Going to be fun. Stocking up on beer!!

kxmotox247 · 03-09-2014, 10:43 PM

I did mine with the cab on about a month ago. Didn't plan on originally doing it that but it can be done. All of the lower rivets... I ground off with a flap grinding disc. Probably took 10 minutes....about a minute each. Like mentioned above, I used a cut off wheel to do the upper ones. Driving out what's left is a pain in the butt. Hard to get a good swing of the hammer at the upper ones. Ear protection and safety glasses are a must. Face shield is even better.

kxmotox247 · 03-09-2014, 10:49 PM

These will make quick work of any rivet you can get to:

http://www.ebay.com/itm/Weiler-4-5-i...ht_1550wt_1238

C10agent · 03-10-2014, 12:45 AM

That's what I'm talking about!!

Jfarns03 · 03-10-2014, 02:36 AM

I used the air chisel a few times from harbor freight and it got it done to an extent. You'll need ear plugs for sure. I bought a quality Bosch grinder and that thing rips. It broke this past weekend, Makita/Milwaukee have wayyyy better power tools. Good luck, a cool 30 pack will make it that much better haha

Sklptrljay · 03-10-2014, 12:05 PM

I'm doing a c-notch right now. Those rivets can be difficult for sure, especially when you can't get a good angle to swing a hammer. I have been using an angle grinder to flatten the bottom and then drilling in the center about 1/4" or so. Then when I hammer it out I have a center point and I think the rivet can collapse just a tiny bit on itself so it pushes out better.

C10agent · 03-10-2014, 12:11 PM

That is huge!! I appreciate the advice

JustLiveIt · 03-12-2014, 01:38 PM

Did mine with the cab on. Used an angle grinder on top and bottom rivets and an air chisel to finish them off. Wear ear plugs, face shield, and respirator if possible. I had so much dust from the grind and cut off wheels in my nose, mouth, lungs, etc. Dumb move on my part not to wear at least one of those cheap paper masks. Better than nothing.

03-09-2014, 05:58 PM	#1
C10agent Registered User Join Date: Aug 2013 Location: Navasota, TX Posts: 708	CPP Crossmember Install Question I promise I have looked through the board and I am not finding what I need. I picked up a CPP lowering crossmember for the rear trailing arms and was curious if I can do the install with the cab still on?? I am going to remove the bed for the C-Notch and other rear add ons. I have seen some install pics but the cab is always off in the pics. Any info would be greatly appreciated. Thanks, Neil __________________ Neil............... 1972 C10 SWB - Shop Truck in the Works 5.3 LS / Full Air Ride / Rear Notch 20" American Racing Daytonas IG - neilioustx - pictures of build/progress Born and Raised in the Promised Land.... TEXAS Y'ALL!!

03-09-2014, 09:00 PM	#2
RManson Registered User Join Date: Jun 2011 Location: United States Posts: 158	Re: CPP Crossmember Install Question I installed mine with the cab on, no problems.

03-09-2014, 09:14 PM	#3
Jfarns03 Registered User Join Date: May 2013 Location: Manhattan Beach CA Posts: 129	Re: CPP Crossmember Install Question Trust and believe you need a cutting torch for those rivets. I'm in the process of lowering my truck with CPP stuff right now. __________________ A place for everything, everything in its place. Check out my build thread! http://67-72chevytrucks.com/vboard/s...43#post6129043

03-09-2014, 09:19 PM	#4
RManson Registered User Join Date: Jun 2011 Location: United States Posts: 158	Re: CPP Crossmember Install Question Torch helps for sure, but a cut off wheel used to cross cut the rivets will aid in getting one side removed. Then just drive 'em out. A pneumatic chisel with a drift and chisel attachments and a pair of ear plugs will be your friend! Good luck!

03-09-2014, 09:19 PM	#5
C10agent Registered User Join Date: Aug 2013 Location: Navasota, TX Posts: 708	Re: CPP Crossmember Install Question Well I have a dremel and a angle grinder-is it possible to get out with those? Any advice one getting those rivets out?? __________________ Neil............... 1972 C10 SWB - Shop Truck in the Works 5.3 LS / Full Air Ride / Rear Notch 20" American Racing Daytonas IG - neilioustx - pictures of build/progress Born and Raised in the Promised Land.... TEXAS Y'ALL!!

03-09-2014, 10:12 PM	#6
C10agent Registered User Join Date: Aug 2013 Location: Navasota, TX Posts: 708	Re: CPP Crossmember Install Question I appreciate it!! I am going to be tackling the c notch and crossmember in the same weekend. Going to be fun. Stocking up on beer!! __________________ Neil............... 1972 C10 SWB - Shop Truck in the Works 5.3 LS / Full Air Ride / Rear Notch 20" American Racing Daytonas IG - neilioustx - pictures of build/progress Born and Raised in the Promised Land.... TEXAS Y'ALL!!

03-09-2014, 10:43 PM	#7
kxmotox247 Senior Member Join Date: Jul 2002 Location: Champaign, IL Posts: 1,396	Re: CPP Crossmember Install Question I did mine with the cab on about a month ago. Didn't plan on originally doing it that but it can be done. All of the lower rivets... I ground off with a flap grinding disc. Probably took 10 minutes....about a minute each. Like mentioned above, I used a cut off wheel to do the upper ones. Driving out what's left is a pain in the butt. Hard to get a good swing of the hammer at the upper ones. Ear protection and safety glasses are a must. Face shield is even better.

03-09-2014, 10:49 PM	#8
kxmotox247 Senior Member Join Date: Jul 2002 Location: Champaign, IL Posts: 1,396	Re: CPP Crossmember Install Question These will make quick work of any rivet you can get to: http://www.ebay.com/itm/Weiler-4-5-i...ht_1550wt_1238

03-10-2014, 12:45 AM	#9
C10agent Registered User Join Date: Aug 2013 Location: Navasota, TX Posts: 708	Re: CPP Crossmember Install Question That's what I'm talking about!! __________________ Neil............... 1972 C10 SWB - Shop Truck in the Works 5.3 LS / Full Air Ride / Rear Notch 20" American Racing Daytonas IG - neilioustx - pictures of build/progress Born and Raised in the Promised Land.... TEXAS Y'ALL!!

03-10-2014, 02:36 AM	#10
Jfarns03 Registered User Join Date: May 2013 Location: Manhattan Beach CA Posts: 129	Re: CPP Crossmember Install Question I used the air chisel a few times from harbor freight and it got it done to an extent. You'll need ear plugs for sure. I bought a quality Bosch grinder and that thing rips. It broke this past weekend, Makita/Milwaukee have wayyyy better power tools. Good luck, a cool 30 pack will make it that much better haha __________________ A place for everything, everything in its place. Check out my build thread! http://67-72chevytrucks.com/vboard/s...43#post6129043

03-10-2014, 12:05 PM	#11
Sklptrljay Registered User Join Date: Apr 2012 Location: Stillwater, Oklahoma Posts: 874	Re: CPP Crossmember Install Question I'm doing a c-notch right now. Those rivets can be difficult for sure, especially when you can't get a good angle to swing a hammer. I have been using an angle grinder to flatten the bottom and then drilling in the center about 1/4" or so. Then when I hammer it out I have a center point and I think the rivet can collapse just a tiny bit on itself so it pushes out better.

03-10-2014, 12:11 PM	#12
C10agent Registered User Join Date: Aug 2013 Location: Navasota, TX Posts: 708	Re: CPP Crossmember Install Question That is huge!! I appreciate the advice __________________ Neil............... 1972 C10 SWB - Shop Truck in the Works 5.3 LS / Full Air Ride / Rear Notch 20" American Racing Daytonas IG - neilioustx - pictures of build/progress Born and Raised in the Promised Land.... TEXAS Y'ALL!!

03-12-2014, 01:38 PM	#13
JustLiveIt Registered User Join Date: Nov 2005 Location: Los Angeles, Ca Posts: 135	Re: CPP Crossmember Install Question Did mine with the cab on. Used an angle grinder on top and bottom rivets and an air chisel to finish them off. Wear ear plugs, face shield, and respirator if possible. I had so much dust from the grind and cut off wheels in my nose, mouth, lungs, etc. Dumb move on my part not to wear at least one of those cheap paper masks. Better than nothing. __________________ 1968 Chev SWB Fleet with GMC Clip and lots of 71-72 parts!



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