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TSM Rear Disc Kit, A+ !!!

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22K views 26 replies 10 participants last post by  Lnhiv  
#1 · (Edited)
Noob here. Just grabbed a 2009 Colorado 4x4 crew w/factory 5.3L. 3 days later pulled the backing plates off complete and dropped them in the scrap bin with the drums (free if anybody wants them, you pay shipping). Bolted on the TSM kit, went perfect. Talked with "Skip" ahead of time, and he gave an easy hint on how to retain the ABS senor.

There is a part number ID stamped on the rotor to source it, but I didn't bother to track it once I had them. I did order their complete kit, but then decided not to use the hoses because as an improvement point, I had a local hydraulic shop make up 2 DOT flex hoses which directly thread onto the factory hard line and wheel cylinder line nut, and route to the calipers. No cutting, flaring, or welding, at all. All I did was rotate the hard line end 90 degrees by hand. My hydro shop did say the included ones were of high quality, so no issue there, I am just lazy and wanted a more direct route rather than use adapters. Also if you want to avoid the flaring tool, this is a much more convenient approach. I slammed new axle shaft seals in and a new diff cover gasket while there with the fluid change.
Instantly gave me the pedal feel I was looking for. Vented rear saucers in the back look and feel like it should have been from the factory, connected to 300hp upstream. Self cleaning, self adjusting, nearly zero pedal travel till actuation, all that.

I studied to convert from a full size setup, but our somewhat unique rectangular axle end flange is not the same as the full size square pattern. 6L80e and 6.2L up next (one then the other, not sure which first). If anybody has done either, please say hello, I do have a few compatibility questions regarding E67 + T43 communication, in addition to a 6L80e to T150 transfer case adapter. TurboAl thank you for the helpful phone call.
 

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#4 · (Edited)
#6 ·
I am
Only thing I did different was to cut the old backing plates off rather than removing the axles and take it off as a unit. There was a little bit of dremel work to clear the mounting plate on the axle housing but took no time at all. Oh the plates come red, If you don't want red they can ship them bare. You can save bucks if you don't want e-brake and for sure buy the calipers locally.
Someone else had recommended painting the rotors to keep from rusting. I used VHT caliper paint, no rust so far only been a few weeks though.
 
#7 ·
No prob. I went without a park brake, since my truck is auto trans and MI is relatively flat for parking. Kit was about $440. A lot of complaints on the net about the parking brake version of the caliper, this is not the fault of the kit, but the caliper itself (GM).

2533

You can not see the red brackets at all once the rotor is on, unless you climb under the truck. I would paint over them black rather than order bare and paint.

Very happy with it. Exactly what I wanted. Performance is A1. Was quick and easy to pull axle shafts. Remove diff cover, remove single spider gear shaft retaining pin bolt, pull spider gear shaft out, push axle shaft in, pull C clip out, pull axle shaft out. Goes back together just as fast and easy. Gravy job.
 
#8 · (Edited)
Subbed because the 6.2 and 6l80 is a dream for me! Be very detailed on your build thread! Lol

I have located a source for a T42 to T43 adapter to control the 6l80. The 6l90 also fits. Wink, wink... get er done! Then show us any snags.

http://www.tbmsport.com/6l8090eswapcomponents.html
 
#9 ·
This rear disc brake kit has now been through one Michigan winter of salt, and still performing perfect. Love it.

I did acquire a 6.2L engine, but it was damaged beyond repair. Now I have a 6.2L engine for parts if anybody has a need. One cylinder sleeve punctured, one rod bent, one piston dissolved, one combustion chamber on each head dinged up.
 
#13 · (Edited)
Question, anyone know what pads they use on the rear that would fit in the calipers they supply? Just curious if I could get an ebc greenstuff set that would work to match the front pads I plan on getting

I tried asking them directly but they were vague and just said they were their own. I wanted to know what would fit in the calipers for when I replace their versions. Since they are all different sizes
 
#16 ·
If you get the +A kit with parking brakes the caliper is from an 79 to 85 Olds Toronado or a Caddy El Dorado.

If you use the non parking brake kit the calipers are from a GM A body i.e. Camaro, Nova, Malibu, or Chevelle or similar other Gm lines.
 
#14 ·
BrakeBest Brakes 18-4139 - Caliper | O'Reilly Auto Parts

These are the calipers similar to what they use in the kit.
these are with E-brake
If you want a matching set front and rear order the kit without calipers and pads and buy what you want from your preferred vendor.

They have full instructions on line. They do send a nifty catalog with your order which gives several other options as well as crossover parts etc. Might be worth the $3.00 or so to get it before ordering.

They are great to talk to as well.
 
#21 ·
So what did you use for rotors? I pieced my kit too but got their rotors because I couldn't figure out what to use. They look like they may be off of a ford but not sure.
 
#23 ·
Ok me too. I wrote down a number off the rotor but couldn't associate it with any make model number. I thought I remembered someone once saying that it was a lincoln rear rotor but it looked to large for me to think that. I'm thinking ford truck. If you look in one of their catalogs most of their rotors are from Ford trucks. Our rotor wasn't listed though. I figure that if I ever need a new rotor I'll just get it from them.