70gmc 1/2 ton brake job - The 1947 - Present Chevrolet & GMC Truck Message Board Network

srprize · 09-08-2004, 10:27 PM

IS THERE A WAY TO USE PARTS FROM OTHER GM MODEL VECHILES , TO COVERT MY DRUM BRAKES TO DISC WITHOUT TO MUCH TROUBLE. MY NEW CHROME WHEELS ARE SIX LUGS.

**BOSS** · 09-09-2004, 01:26 PM

I will move this thread to a better place for your answers.Welcome to the board!And i believe you can use a newer crossmember from a 71 on up.

krue · 09-09-2004, 01:53 PM

Quote:

Originally Posted by BOSS

I will move this thread to a better place for your answers.Welcome to the board!And i believe you can use a newer crossmember from a 71 on up.

Which would give you 5-lugs.

BTW welcome to the board from South Mississippi!

srprize · 09-09-2004, 06:04 PM

thanks for the help

**john** · 09-09-2004, 06:24 PM

Welcome, There are suppliers listed on the home page that sell 6 lug disc conversions. I dont know of any easy ways to do it with other GM parts. The kits come with a choice of dropped spindles or standard height. John

68w/sbc406 · 09-09-2004, 07:04 PM

welcome from the pacNW. where you from? you can get a complete 71+ crossmember from the junk yard and swap everything over. you will need the master cylinder and prop valve off of the donor truck. and on disc trucks the brake line is in a different spot than drum trucks, but the board vendors sell a hose that works (i think,maybe some one can help me on that one) keep in mind that you should replace tie-rod ends and ball joints while you are into it. some of the board vendors have 6 lug rotors for this swap that way you can keep those new crome wheels too

srprize · 09-10-2004, 09:08 PM

Hello Folks,
Thanks for the warm welcome! I come from Gallatin TN. This projecct we bought for my son but has become a good father son job. In the last couple of months we install a 350 new And have gone thourgh the three speed.it looks and sounds great. brakes are my next job. Thanks info

krue · 09-10-2004, 10:09 PM

I just noticed you have a 70 GMC also!

First thing I think you should do is put a power booster on your truck if it doesn't already have one. For the money it's a quick way to improve your braking.

srprize · 09-13-2004, 09:09 PM

I Have Added The Power Booster It Did Help. I Was Able To Locate A 73 Chevy
This Passed Weekend At The Junk Yard. It Had Everything I Need Except For The Six Lug Rotors. Do You Think That I Can Drop The Entire Front End And Bolt It Up? Of Coarse I'll Put In New Joints. Do You Have A Three Speed, If So Can You Tell Me How To Hook Up The Reverse Lights? Mine Has A Switch Is On The Transmission Side Plate But I Don't Know Where The Single Lead Wire Coming From It Goes.

Thanks For Your Help
Srprise

68w/sbc406 · 09-13-2004, 09:17 PM

(on my 68 with 250 I6 and 4 speed) one of them is from the wire harness on the fire wall that comes downon the passenger side and the other one goes to the harness that rides the frame to the tail lights.

saxmo · 11-22-2004, 08:11 PM

Quote:

Originally Posted by 68w/sbc406

welcome from the pacNW. where you from? you can get a complete 71+ crossmember from the junk yard and swap everything over. you will need the master cylinder and prop valve off of the donor truck. and on disc trucks the brake line is in a different spot than drum trucks, but the board vendors sell a hose that works (i think,maybe some one can help me on that one) keep in mind that you should replace tie-rod ends and ball joints while you are into it. some of the board vendors have 6 lug rotors for this swap that way you can keep those new crome wheels too

Would this swap affect the motor placement and motor mounts any?

68w/sbc406 · 11-23-2004, 04:21 PM

PM sent

09-08-2004, 10:27 PM	#1
srprize Registered User Join Date: Sep 2004 Posts: 5	70gmc 1/2 ton brake job IS THERE A WAY TO USE PARTS FROM OTHER GM MODEL VECHILES , TO COVERT MY DRUM BRAKES TO DISC WITHOUT TO MUCH TROUBLE. MY NEW CHROME WHEELS ARE SIX LUGS.

09-09-2004, 06:24 PM	#5
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	Welcome, There are suppliers listed on the home page that sell 6 lug disc conversions. I dont know of any easy ways to do it with other GM parts. The kits come with a choice of dropped spindles or standard height. John __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

09-09-2004, 07:04 PM	#6
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	welcome from the pacNW. where you from? you can get a complete 71+ crossmember from the junk yard and swap everything over. you will need the master cylinder and prop valve off of the donor truck. and on disc trucks the brake line is in a different spot than drum trucks, but the board vendors sell a hose that works (i think,maybe some one can help me on that one) keep in mind that you should replace tie-rod ends and ball joints while you are into it. some of the board vendors have 6 lug rotors for this swap that way you can keep those new crome wheels too __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

09-10-2004, 10:09 PM	#8
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	I just noticed you have a 70 GMC also! First thing I think you should do is put a power booster on your truck if it doesn't already have one. For the money it's a quick way to improve your braking. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

09-13-2004, 09:17 PM	#10
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	(on my 68 with 250 I6 and 4 speed) one of them is from the wire harness on the fire wall that comes downon the passenger side and the other one goes to the harness that rides the frame to the tail lights. __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

09-09-2004, 01:26 PM	#2
BOSS Just here to help Join Date: Jan 2002 Location: Norwood,Mo Posts: 3,890	I will move this thread to a better place for your answers.Welcome to the board!And i believe you can use a newer crossmember from a 71 on up.

09-09-2004, 06:04 PM	#4
srprize Registered User Join Date: Sep 2004 Posts: 5	thanks for the help

09-10-2004, 09:08 PM	#7
srprize Registered User Join Date: Sep 2004 Posts: 5	Hello Folks, Thanks for the warm welcome! I come from Gallatin TN. This projecct we bought for my son but has become a good father son job. In the last couple of months we install a 350 new And have gone thourgh the three speed.it looks and sounds great. brakes are my next job. Thanks info

09-13-2004, 09:09 PM	#9
srprize Registered User Join Date: Sep 2004 Posts: 5	I Have Added The Power Booster It Did Help. I Was Able To Locate A 73 Chevy This Passed Weekend At The Junk Yard. It Had Everything I Need Except For The Six Lug Rotors. Do You Think That I Can Drop The Entire Front End And Bolt It Up? Of Coarse I'll Put In New Joints. Do You Have A Three Speed, If So Can You Tell Me How To Hook Up The Reverse Lights? Mine Has A Switch Is On The Transmission Side Plate But I Don't Know Where The Single Lead Wire Coming From It Goes. Thanks For Your Help Srprise

11-23-2004, 04:21 PM	#12
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	PM sent __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

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