4 Piston Big Brake Upgrade from 2019-20

[mang213]

Bro,
Those rotors are looking really gnarly....LOL
At least you don't have to buy new-old ones.

Lol, I waited until the very last possible moment so I could do everything at once. Just replaced upper and lower control arms on both sides as well as the hub assemblies. Was going to order regular old direct replacement ******** until I found this thread. Now I'm blowing money all over the place [emoji38]

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[livingez_123]

Well here is my progress.

Cut off wheel on the angle grinder......takes about 2 mins to delete the hump.....on this hump day. Then clean up with my Milwaukee M12 die grinder with a 40 grit flapper wheel.

Hope to get these out to powder coating this week

View attachment 277118 View attachment 277119 View attachment 277120

So do you feel the caliper will still be stiff enough to not deflect with the big hump removed? Did you check the thickness after machining? GM put it there for a reason, maybe they had some crack under pressure?

 

[livingez_123]

Ok, so I didn't even need to remove the existing caliper to figure out this wasn't even close to working. My 2010 Tahoe Z71 with the factory 18 inch wheels had about .75 inch clearance between the wheel and original caliper, which is very generous. The original caliper measures approximately 3.5 inches from the mounting flange to the outer edge of the caliper closest to the wheel. The new 2019+ caliper measures approximately 4.75-4.875 inches from the mounting flange to the outer edge of the dreaded casting "bump". Looks like new wheels are going to need to go on here since I just bought new bfg ko2s. Pics attached. We need this info stored in a sticky or something, if possible

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This was the info I spent going through 22 pages to find!
Thank you.

 

[mang213]

This was the info I spent going through 22 pages to find!
Thank you.

Me too. Since the info wasn't available yet, I took action [emoji1787]

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[fasteddy]

The drama continues....
How about my floating paint booth?

 

[1BADI5]

Well I took some measurements of my wheels........there is no way in hell I can run these with my current wheels unless I go with .50" spacer.......and I hate spacers.

I have shaved the hump and cleaned most of the casting flash up for powder coating......any offers. Since they're back on a national back order?

They would work if I went back to my stock wheels, but I'm not doing that.

 

[Dantheman1540]

Well I took some measurements of my wheels........there is no way in hell I can run these with my current wheels unless I go with .50" spacer.......and I hate spacers.

I have shaved the hump and cleaned most of the casting flash up for powder coating......any offers. Since they're back on a national back order?

They would work if I went back to my stock wheels, but I'm not doing that.

View attachment 277711 View attachment 277712

PM sent

 

[fasteddy]

Wheels fit fine....

Well I took some measurements of my wheels........there is no way in hell I can run these with my current wheels unless I go with .50" spacer.......and I hate spacers.

I have shaved the hump and cleaned most of the casting flash up for powder coating......any offers. Since they're back on a national back order?

They would work if I went back to my stock wheels, but I'm not doing that.

View attachment 277711 View attachment 277712

If Dan doesn't buy them I will. I would like them powdered first though.

**********************************************************

Test fitted this fuel wheel today...worked no problema.
Ordered for a 2020 Silverado. 18x9 ET20
And good spoke spacing to highlight the calipers.
Finally I can move forward......gee.




My Z71 wheels did not clear the caliper with a 1/4" spacer but did easily with 1/2".
Its probably somewhere in between.
With 1/2" spacer the studs only ended up with about a lugnut worth of thread though....so would not run that except for storage
or at a body shop.

 

[Dantheman1540]

Wheels fit fine....


If Dan doesn't buy them I will. I would like them powdered first though.

**********************************************************

Test fitted this fuel wheel today...worked no problema.
Ordered for a 2020 Silverado. 18x9 ET20
And good spoke spacing to highlight the calipers.
Finally I can move forward......gee.

View attachment 277742


My Z71 wheels did not clear the caliper with a 1/4" spacer but did easily with 1/2".
Its probably somewhere in between.
With 1/2" spacer the studs only ended up with about a lugnut worth of thread though....so would not run that except for storage
or at a body shop.

View attachment 277743

I'm gonna confirm fitment tomorrow evening I just got the test caliper he sent me. That fuel wheel with the big red brake behind it looks sexy as hell!

 

[fasteddy]

I'm gonna confirm fitment tomorrow evening I just got the test caliper he sent me. That fuel wheel with the big red brake behind it looks sexy as hell!

Yeah.....I think so too.
Not my original choice but happy with the outcome.
I hope it performs as well as it looks.
Should be done within a few days. And will report back.

Then I can move on to the engine.....
I might change there as well.....I may have figured out how to do the L86/10L90 swap in the 03.
That would totally blow my low budget resto out the window.
I need to do more homework after I finish the brakes.

 

[Dantheman1540]

Yeah.....I think so too.
Not my original choice but happy with the outcome.
I hope it performs as well as it looks.
Should be done within a few days. And will report back.

Then I can move on to the engine.....
I might change there as well.....I may have figured out how to do the L86/10L90 swap in the 03.
That would totally blow my low budget resto out the window.
I need to do more homework after I finish the brakes.

I haven't seen a standalone setup for the 10L yet but I have a buddy doing a 6l80 swap in an 02 now and keeping the engine gen 3. Hopefully he finishes soon cause he's been 3 speeding his 4l60 for months .


I really like those wheels a lot so many cool "off road"wheels have come out in the last 3 years. I like that those show the caliper so much. Probably more than mine will with the ltz 20s.

 

[fasteddy]

I haven't seen a standalone setup for the 10L yet but I have a buddy doing a 6l80 swap in an 02 now and keeping the engine gen 3. Hopefully he finishes soon cause he's been 3 speeding his 4l60 for months .


I really like those wheels a lot so many cool "off road"wheels have come out in the last 3 years. I like that those show the caliper so much. Probably more than mine will with the ltz 20s.

Thats why I went with that wheel as now I have a caliper to show....before it was ehh, may as well go military style and hide that caliper.



This is going to be offtrack.....
The L86/10L90 set up is the 6.2 Gen V direct injection engine - LT1......Put in the 19+ Denalis, RSTs, and High Country's.
Not standalone 10L90.....I would do as a engine/trans combo.
So GenV engine computer and trans controller.
I need to make sure I can still run the HVAC, but I would definitely lose the cluster.
I would have to implement some digital dash, which they have now.....and nice ones....and I've done it before.
But the budget for that engine/trans would be almost as much as my entire budget now so I'm still proceeding down the mildly built LQ9 path.

I think I'd be more excited about and Electric swap solution....something like 1000lbs of torque and a 600 mile range.

 

[Dantheman1540]

Tested 3 different wheel setups tonight. NNBS LTZ20s will fit with a 1/4" spacer or possibly the bump ground down. Method bronze roost wheels in 17x8.5 and 4.5" back spacing will fit by a hair, and finally NBS Denali 17s will not fit the caliper hits the barrel.

Pics for proof

 

[Dantheman1540]

 

[fasteddy]

Good to know.....
Glad your 20 will fit with minimal spacing.

The barrel clearance on the 17s is way tight!
I bumped and scratched the caliper too many times trying to fit the Z71 wheel.
Its hard to try to delicately lift a 75lb wheel over the rotor and caliper without a bump.

Nice looking length on those SS lines. What brand? Or did you make make them yourself?

I did find a company that makes custom high temp stickers.....
The face looks so blank without a sticker.

 

[Dantheman1540]

Good to know.....
Glad your 20 will fit with minimal spacing.

The barrel clearance on the 17s is way tight!
I bumped and scratched the caliper too many times trying to fit the Z71 wheel.
Its hard to try to delicately lift a 75lb wheel over the rotor and caliper without a bump.

Nice looking length on those SS lines. What brand? Or did you make make them yourself?

I did find a company that makes custom high temp stickers.....
The face looks so blank without a sticker.

Yeah, the barrel clearance on the Method 17" is crazy tight. If I ever did the swap on my Silverado I would probably grind the ends but, it has awesome brakes already so no need to upgrade.

Those are stop Tech lines I got off another member last year. Fit great except the passenger side tried to cross thread so I put stock back on. It was probably me cross-threading it because I'm good at that, I have a new SS line for that side on the way now.

A high temp sticker would be cool but, I doubt it would last long I'll just bedazzle mine and call it good lol.

I am still kinda not wanting to do the swap too soon because the current power stop setup has so much life left! These were done by the PO and I have put nearly 40k on the truck yet the pads show very little sign of wear I'm very impressed.

 

[Dantheman1540]

Since I finished my mockup I have the test fit caliper @1BADI5 sent me available if anyone wants it. I paid $20.69 for him to ship it to me so I will request the same if you aren't local to Central FL. Just PM me and we can work something out.


Already taken by @FrankU

 

[1BADI5]

It has to be $20.69 LOL

 

[Dantheman1540]

It has to be $20.69 LOL

I got the .69 back from @FrankU

 

[1BADI5]

I got the .69 back from @FrankU

Well another .69 ******* back your way.

I don't dick around when fellow forum mates send me their hard earned green....I'll be shipping it this afternoon

It fits......so it ships, take a look at that shipping label LMAO