Author Topic: Uninstall Old Trailer Brake Controller  (Read 906 times)

Offline jsc

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Uninstall Old Trailer Brake Controller
« on: July 30, 2019, 06:25:48 AM »
When I bought my '83 C10 4 years ago, it came with (what looks to be) a Kelsey Hays trailer brake controller. Funny thing is, I don't even have a trailer hitch, and I don't think I'll EVER have need of trailer brakes.

So how can I uninstall it?

Thanks!!

John

Offline zieg85

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    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: Uninstall Old Trailer Brake Controller
« Reply #1 on: July 30, 2019, 08:57:39 AM »
If it is all electronic just cut the wires and take it out.  If it is the one that hooks in the fluid line you just take it out.  If you don't touch the brake pedal you shouldn't have to bleed the brakes.
1985 C30 Custom Deluxe Ext. cab 5.7L TH400 3.21 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
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Offline jsc

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Re: Uninstall Old Trailer Brake Controller
« Reply #2 on: July 30, 2019, 05:42:38 PM »
Will I need to plug the master cylinder? 

Offline zieg85

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Re: Uninstall Old Trailer Brake Controller
« Reply #3 on: July 30, 2019, 05:55:46 PM »
Will I need to plug the master cylinder?

The ones I have seen uses a T style fitting.  The straight through (top of the T) is the same threads.  You can take that T out and hook the brake line back up to the master.  Post a picture and I can tell you for sure.
1985 C30 Custom Deluxe Ext. cab 5.7L TH400 3.21 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/

Offline jsc

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Re: Uninstall Old Trailer Brake Controller
« Reply #4 on: July 31, 2019, 08:48:02 AM »
Here's my master cylinder.  I'm guessing the trailer brake fitting is the bottom one?  It looks like I need to remove the entire "T" and then put brake line back in. 

Thanks

John

Offline zieg85

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    • 73-87 GM squarebody extended cab and conversions up to 91 R/V series
Re: Uninstall Old Trailer Brake Controller
« Reply #5 on: July 31, 2019, 09:39:11 AM »
Here's my master cylinder.  I'm guessing the trailer brake fitting is the bottom one?  It looks like I need to remove the entire "T" and then put brake line back in. 

Thanks

John
Yes that is it. 
1985 C30 Custom Deluxe Ext. cab 5.7L TH400 3.21 
1985 C20 Scottsdale 7.4L 4 speed 3.21
1986 C10 under construction
https://www.facebook.com/groups/248658382003506/

Offline JohnnyPopper

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Re: Uninstall Old Trailer Brake Controller
« Reply #6 on: July 31, 2019, 01:25:50 PM »
That's a pretty clean motor compared to some I've seen on this site!
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction

Offline jsc

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Re: Uninstall Old Trailer Brake Controller
« Reply #7 on: July 31, 2019, 02:28:18 PM »
I bought it with a bad engine.  First thing I had to do was install Crate 350.  Then wheels and tires.  Then...  Well, you get the picture.