Brake Job on My '67 Shortstep - The 1947 - Present Chevrolet & GMC Truck Message Board Network

l1n1b1 · 12-19-2005, 05:33 AM

I plan on doing a complete brake job on my 67 Shortstep. I have the original 6 lug drum setup front & rear. I just recently aquired the truck & was told that it had been sitting up a while. I'm assuming that it currently has DOT 3 fluid in the system now, but it looks pretty funky. If I replace all 4 wheel cylinders, blow all the brake lines clear, & empty the master cylinder, will it hurt anything to go back with silicone brake fluid? Are there any advantages to using silicone brake fluid vs. DOT 3 fluid? Or do I need to just stick with the DOT 3?

andyman1 · 12-19-2005, 05:55 AM

silicone brake fluid is desinged for todays vehicles higher temp. braking systems. it WILL work in older applications, for the price, i still use dot3. from Andyman1-cert. ASE brake tech.

l1n1b1 · 12-19-2005, 06:00 AM

Thanks andyman....This truck is for my son to drive back & forth to school, so I was just thinking that the silicone fluid would make the brake system 'er'...Just didnt know if its too much sugar for a dime...

68C15 · 12-19-2005, 08:06 AM

also just draining the MC and blowing out the lines will NOT get all the old fluid and "crud" out. it will mix with the silicone & create havoc.

l1n1b1 · 12-19-2005, 11:49 AM

So the best thing overall to do would be empty the system as much as possible & go back with DOT3, right?

*FormerMember* · 12-19-2005, 12:21 PM

Quote:

Originally Posted by l1n1b1

So the best thing overall to do would be empty the system as much as possible & go back with DOT3, right?

That is what I would do.

No real increase to be had from anything else.

I could see if you swapped in C5 suspension and brakes.

krue · 12-19-2005, 01:32 PM

Go with the tried and true.

Tx Firefighter · 12-20-2005, 07:52 AM

The advantage of silicone is that it's not hydroscopic. That is, it does not absorb moisture from the atmosphere. That makes it ideal for infrequently driven vehicles too.

12-19-2005, 05:33 AM	#1
l1n1b1 67 Shortstep Join Date: Dec 2005 Location: Louisiana Posts: 100	Brake Job on My '67 Shortstep I plan on doing a complete brake job on my 67 Shortstep. I have the original 6 lug drum setup front & rear. I just recently aquired the truck & was told that it had been sitting up a while. I'm assuming that it currently has DOT 3 fluid in the system now, but it looks pretty funky. If I replace all 4 wheel cylinders, blow all the brake lines clear, & empty the master cylinder, will it hurt anything to go back with silicone brake fluid? Are there any advantages to using silicone brake fluid vs. DOT 3 fluid? Or do I need to just stick with the DOT 3? __________________ 67 SWB Step 69 LWB CST 71 LWB 94 SWB Step 05 1500 Dodge P/U Adapt, Improvise, Overcome

12-19-2005, 05:55 AM	#2
andyman1 Registered User Join Date: Dec 2005 Location: newburgh, n.y. Posts: 2	Re: Brake Job on My '67 Shortstep silicone brake fluid is desinged for todays vehicles higher temp. braking systems. it WILL work in older applications, for the price, i still use dot3. from Andyman1-cert. ASE brake tech.

12-19-2005, 06:00 AM	#3
l1n1b1 67 Shortstep Join Date: Dec 2005 Location: Louisiana Posts: 100	Re: Brake Job on My '67 Shortstep Thanks andyman....This truck is for my son to drive back & forth to school, so I was just thinking that the silicone fluid would make the brake system 'er'...Just didnt know if its too much sugar for a dime... __________________ 67 SWB Step 69 LWB CST 71 LWB 94 SWB Step 05 1500 Dodge P/U Adapt, Improvise, Overcome

12-19-2005, 08:06 AM	#4
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: Brake Job on My '67 Shortstep also just draining the MC and blowing out the lines will NOT get all the old fluid and "crud" out. it will mix with the silicone & create havoc. __________________ Man rule #77...if you own a 67 stepside with a caddy 472 you will never be in danger of loosing you man card

12-19-2005, 11:49 AM	#5
l1n1b1 67 Shortstep Join Date: Dec 2005 Location: Louisiana Posts: 100	Re: Brake Job on My '67 Shortstep So the best thing overall to do would be empty the system as much as possible & go back with DOT3, right? __________________ 67 SWB Step 69 LWB CST 71 LWB 94 SWB Step 05 1500 Dodge P/U Adapt, Improvise, Overcome

12-19-2005, 01:32 PM	#7
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: Brake Job on My '67 Shortstep Go with the tried and true. __________________ "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"

12-20-2005, 07:52 AM	#8
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Brake Job on My '67 Shortstep The advantage of silicone is that it's not hydroscopic. That is, it does not absorb moisture from the atmosphere. That makes it ideal for infrequently driven vehicles too. __________________ I'm on the Instagram- @Gearhead_Kevin



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