Upgrade to Discs on a 69 Chevy - The 1947 - Present Chevrolet & GMC Truck Message Board Network

extd56 · 02-03-2007, 01:25 PM

I am going to install disc brakes on my 69 since I drive it all the time. It is a 3/4 ton and I was wondering what spindles or spindles and a-arms I can use on the front end. I need to rebuild the front end any way and thought I could upgrade the front end in the process. Thanks

**LockDoc** · 02-03-2007, 10:15 PM

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You can check out the following threads they may have some info you can use....

http://67-72chevytrucks.com/vboard/s...+brake+upgrade

http://67-72chevytrucks.com/vboard/s...+brake+upgrade

http://67-72chevytrucks.com/vboard/s...+brake+upgrade

http://67-72chevytrucks.com/vboard/s...+brake+upgrade

LockDoc

extd56 · 02-03-2007, 10:38 PM

The links are for a 1/2 ton truck, I was looking for a 3/4 ton truck to convert the 8 lug to disc.

manimal · 02-04-2007, 12:21 AM

You should be able to use the 73-up 3/4t stuff.Do the swap just as a 1/2t

rlm316 · 02-05-2007, 03:09 PM

Good luck! I'm in the process of doing the same change. I'm using the crossmember from a 91 suburban. I used the same upper and lower a-arms from the 91. I also used the entire steering components from the same vehicle. The steering box from that will also bolt on and I'm told that it is a quicker ratio than the stock on my 70. Every thing bolts as on the 1/2t. There is going to be one hole on each side that you will need to drill and another that you will need to elongate. There is a flat 3 hole washer that mounts from the bottom up inside the crossmember that you will need to make sure you re-install. Most if not all of the front suspension parts are the same from our generation to the next on the 3/4t. I am to the point on mine where I need to route the brake lines. As far as I can figure the rear lines are as stock. The front lines will probably be ordered for the 91. The mounting provisions for the bendix lines are on a tab on the crossmember for the 70 and they are different on the next generation. Just make sure that if you use a specific year spindles and centerlink that you follow through with that year for the rest of the parts. Lane

rlm316 · 02-05-2007, 03:21 PM

Forgot to add this, I am going to use the stock booster from my 70, it was power drum. The master cylinder and proportioning valve will be for a 71 or 72 power disc/drum set-up.

02-03-2007, 01:25 PM	#1
extd56 Senior Member Join Date: Nov 2004 Location: Vacaville, CA Posts: 2,272	Upgrade to Discs on a 69 Chevy I am going to install disc brakes on my 69 since I drive it all the time. It is a 3/4 ton and I was wondering what spindles or spindles and a-arms I can use on the front end. I need to rebuild the front end any way and thought I could upgrade the front end in the process. Thanks

02-03-2007, 10:15 PM	#2
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,640	Re: Upgrade to Discs on a 69 Chevy - You can check out the following threads they may have some info you can use.... http://67-72chevytrucks.com/vboard/s...+brake+upgrade http://67-72chevytrucks.com/vboard/s...+brake+upgrade http://67-72chevytrucks.com/vboard/s...+brake+upgrade http://67-72chevytrucks.com/vboard/s...+brake+upgrade LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 02-03-2007 at 10:16 PM.

02-03-2007, 10:38 PM	#3
extd56 Senior Member Join Date: Nov 2004 Location: Vacaville, CA Posts: 2,272	Re: Upgrade to Discs on a 69 Chevy The links are for a 1/2 ton truck, I was looking for a 3/4 ton truck to convert the 8 lug to disc.

02-04-2007, 12:21 AM	#4
manimal Registered User Join Date: Oct 2006 Location: Southern Kalifornia Posts: 3,066	Re: Upgrade to Discs on a 69 Chevy You should be able to use the 73-up 3/4t stuff.Do the swap just as a 1/2t

02-05-2007, 03:09 PM	#5
rlm316 Registered User Join Date: Aug 2006 Location: Woodstown, NJ Posts: 669	Re: Upgrade to Discs on a 69 Chevy Good luck! I'm in the process of doing the same change. I'm using the crossmember from a 91 suburban. I used the same upper and lower a-arms from the 91. I also used the entire steering components from the same vehicle. The steering box from that will also bolt on and I'm told that it is a quicker ratio than the stock on my 70. Every thing bolts as on the 1/2t. There is going to be one hole on each side that you will need to drill and another that you will need to elongate. There is a flat 3 hole washer that mounts from the bottom up inside the crossmember that you will need to make sure you re-install. Most if not all of the front suspension parts are the same from our generation to the next on the 3/4t. I am to the point on mine where I need to route the brake lines. As far as I can figure the rear lines are as stock. The front lines will probably be ordered for the 91. The mounting provisions for the bendix lines are on a tab on the crossmember for the 70 and they are different on the next generation. Just make sure that if you use a specific year spindles and centerlink that you follow through with that year for the rest of the parts. Lane

02-05-2007, 03:21 PM	#6
rlm316 Registered User Join Date: Aug 2006 Location: Woodstown, NJ Posts: 669	Re: Upgrade to Discs on a 69 Chevy Forgot to add this, I am going to use the stock booster from my 70, it was power drum. The master cylinder and proportioning valve will be for a 71 or 72 power disc/drum set-up.



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