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Old 02-26-2009, 04:47 PM   #1
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Which is better SMI or M&G

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Old 02-26-2009, 07:06 PM   #2
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Alpine Owners Club
Join Date: Jun 2003
Location: Ontario, CA USA
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Hello Alpine4Us:

I have never used the SMI but I have used the M&G. I can not say enough about how good it is and that I have now swapped it to the third vehicle myself. I have never had a problem with it and it always works. No electrical to hook up, no battery drain, just connect an air line and it is ready to go.

Dave Fernandez
2001, 38ft FDDS, 350 ISC, Tow 2004 Yukon
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Old 02-26-2009, 07:06 PM   #3
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Location: Olympia
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I've got the M&G system and love it. Hooking up the breaking system takes about 20 seconds. I've got the break-away back-up system too and the 20 seconds includes hooking that up as well. The M&G system could be a real bear to install for a DIY'er though. I've no experience with the SMI so can't make a comparison.
'99 Alpine Coach
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Old 02-26-2009, 07:45 PM   #4
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We have the SMI Silent Partner. It has served us very well. Ours is wireless as I believe the Air Force is also. The only thing we hook up is the tow bar, breakaway switch and throw the switch on the vacuum pump. We have three choices for brake application. 1.Latched......MH brakes activated, toad brakes are activated.
2. toad brakes are applied accordingly to MH deceleration.
3. Toad brakes can be applied independently.

I installed it myself.

IIRC you must be sure that the M&G system will fit between the master cylinder and power booster. On our PT we had no room for the M&G.
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 36' FDS 72232 Our Photos
We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, me and you - hand in hand.
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Old 02-27-2009, 06:48 AM   #5
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Location: McKinney, Texas
Posts: 518
I agree with what Dave & Jeff said.

If M & G makes one for your vehicle, you just can't go wrong.

Best to you - Glenn
2004 Safari 31SBD TREK W-20
McKinney, Texas
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Old 03-01-2009, 11:25 AM   #6
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We have an M&G and love it. Fast and easy to hook and unhook.
Never had an SMI system.
Here's where we are
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Old 03-01-2009, 12:25 PM   #7
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National RV Owners Club
Workhorse Chassis Owner
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Location: Scottsdale, AZ
Posts: 1,451
Have the M&G systems on both of my Jeeps. I transferred the MH part of their system from my class C to my present coach. Very satisfied with braking performance and ease of use. Have used the same system since 1996. Basically simple and bulletproof design. M&G is a good company when you need customer service or updates!

Never had an SMI


2003 34' Dolphin 5342, W22, UP, UPGBrake, F and R Track Bars, Rear IPD sway bar, Koni FSDs, Safe-T-Plus, Scan Gauge II.. 2004 Jeep Liberty, Blue-Ox Adventa..
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