Anyone use an underdash brake booster/master cylinder??

[azsmokey]

We are experiencing clearance issues with the Vortech blower and the OEM style booster and master. Clearance prohibits the smaller boosters and hydroboost as well. I was told to research the under dash, 90 degree mount, 7" dual. Has anyone used one of these with our style truck? If so, are there any under dash conflicts? How close is the steering column?

[mclairmo]

Do you mean under the floor? I have seen under the floor mounted masters and boosters for hot rods since those guys really like the smooth firewall look. They bolt backwards (facing the rear of the vehicle) to the frame and the pedal comes through the floor. I have not heard of any problems with that setup, except you need to run residual valves in the front and rear lines to prevent the fluid from flowing back into the master. Check our the hot rod suppliers like Southern Rods.

[john]

I think it was XXL that mounted his 90 deg. under the dash.

[stunna]

scotts hotrods makes one for our trucks. I have one but its not installed yet. Check them out, they are a vendor on here. Ask for jeph.

[mclairmo]

Scott's HotRods in Oxnard, CA? I did not see anything on their website except an under floor booster that mounts to the frame as I mentioned above.

[azsmokey]

Originally Posted by john

I think it was XXL that mounted his 90 deg. under the dash.

Yes, the under dash unit is correct. Is the blue truck a 67-72 series? That will definitely give us enough clearance. I checked Scott's but did not see the booster at all. Looks like their site is under construction. Any other ideas?

[stunna]

Originally Posted by azsmokey

yes, the under dash unit is correct. Is the blue truck a 67-72 series? That will definitely give us enough clearance. I checked scott's but did not see the booster at all. Looks like their site is under construction. Any other ideas?

you will need to call them, they can send u pics and details. Also there is a thread on here about it, do a search for frame mounted brake booster or something like that. Its a pretty long thread.

[azsmokey]

Stunna, u posted that you had a booster but that it was not installed. Have you made any progress? I need to get one and install it. Anyone else install an under dash brake booster?

[azsmokey]

Also, how and where are you going to route the lines?

[C20-67_N_MO]

I posted a thread of what you are after as well.

So maybe one of the vendors will chime in here after the holiday weekend and help us both out!

[C10Sim]

This might help.

http://67-72chevytrucks.com/vboard/s...d.php?t=322858

[azsmokey]

I checked the previous link and saw the under dash system installed. It looks like a really nice, well constructed piece. The only problem is that, when installed, it prohibits the wiper motor from being installed! I don't want to give up wipers at this point, so what other alternatives are there?

[mclairmo]

Originally Posted by azsmokey

I checked the previous link and saw the under dash system installed. It looks like a really nice, well constructed piece. The only problem is that, when installed, it prohibits the wiper motor from being installed! I don't want to give up wipers at this point, so what other alternatives are there?

See my post above. Mount booster/master to frame like the street rod guys do.