BMR BK063 Rear Cradle Lockout Review

Krowser · 09-10-2022, 07:49 PM

Parts:
1. BMR BK063 Rear Cradle Lockout Kit

Sold Separately
2. Forward, Rear Cradle Bolts: Part # 11547921 (74ftlbs + 90- 105 degrees)
3. Rearward, Rear Cradle Bolts/Stud: Part # 11611819 (74ftlbs + 90-105 degrees)

Installed at: Redline Motosports, Florida - 1 to 1.5 hours

Car: 2017 Camaro zl1 M6 with breathing mods - weekend car

The BMR BK063 is necessary to greatly reduce slop and movement of the OEM rubber cradle bushings!

Before Install:

1. Flat footed acceleration was smooth yet damped, almost like a roll into speed.
2. Rear end would move unpredictably at high speeds while changing lanes over un even pavement and become slightly unsettled over pavement lane reflectors.
3. While changing lanes quickly, rear end would catch up to the front end.
4. Taking sharp high speed turns, the rear would "waggle" and was not confidence inspiring.

AFTER Install: (seat time - 3 days approx: 50 miles)

1. YOU CAN FEEL EVERY BIT OF ACCELERATION FROM ANY PEDDLE POSITION!

2. Rear end stays planted while changing lanes over un even pavement with no lateral movement.
3. The rear end moves DIRECTLY inline with the front end during acceleration while performing spirited lane changes.
4. Taking turns IS NIGHT AND DAY compared to stock, confidence up 90%!!

Conclusion:
Shame on GM for not making this device factory!

If you have not done this mod on a regular ZL m6, you are truly missing what our cars feel like with hardly no wheel hop....this is truly a bolt-on where you WILL FEEL THE DIFFERENCE IMMEDIATELY!!

Shout out to Howard from Redline Motorsports!!

AZIROC · 09-10-2022, 08:30 PM

Sounds good. I keep going back and forth on this and the 1le kit. The plus to this kit is you can do it in your garage vs the 1le needs the cradle to be dropped.

Krowser · 09-10-2022, 09:20 PM

Quote:

Originally Posted by AZIROC

Sounds good. I keep going back and forth on this and the 1le kit. The plus to this kit is you can do it in your garage vs the 1le needs the cradle to be dropped.

Correct!...I also understand the 1LE kit will increase NVH...the BK063 kit does not,,

AZIROC · 09-10-2022, 10:42 PM

Quote:

Originally Posted by Krowser

Correct!...I also understand the 1LE kit will increase NVH...the BK063 kit does not,,

The car is mainly on the track so NVH is fine.

clg82 · 09-11-2022, 01:19 AM

Quote:

Originally Posted by AZIROC

Sounds good. I keep going back and forth on this and the 1le kit. The plus to this kit is you can do it in your garage vs the 1le needs the cradle to be dropped.

Huh? I just looked at the BMR instructions and multiple times it mentions the cradle needing to be tilted or dropped…..

lownslowss · 09-11-2022, 05:06 AM

Quote:

Originally Posted by clg82

Huh? I just looked at the BMR instructions and multiple times it mentions the cradle needing to be tilted or dropped…..

He did the lockout kit. The cradle only has to drop a tiny bit to get the bits in. It's not a true solid bushing. The kit only fills the gaps in the factory bushings. I had the same kit on my 17', and it does make a difference. I plan to do the solid bushings on my current car.

XXX ZL1 · 09-11-2022, 06:37 AM

Very nice kit for sure. Had it and all BMR arms on my 19 and the rear felt drastically better. When my new gets here I’ll do the cradle and diff lockout on it.

Stephen12ZL1 · 09-11-2022, 07:00 AM

works great..it made a noticeable improvement in my '17 ZL1

Firecaptain · 09-11-2022, 07:55 AM

For those inquiring minds......the install video.......

Z OH 6 · 09-11-2022, 08:27 AM

Quote:

Originally Posted by AZIROC

Sounds good. I keep going back and forth on this and the 1le kit. The plus to this kit is you can do it in your garage vs the 1le needs the cradle to be dropped.

You get 95% of the same performance as the 1LE pieces at a fraction of the cost and much easier installation. It's a no brainer really.

Smokin19 · 09-11-2022, 08:34 AM

I am happy with the results of my BMR lockout kit install.

ST1LE · 09-11-2022, 11:17 AM

This is on my list of first mods for sure.

arpad_m · 09-11-2022, 11:46 AM

Quote:

Originally Posted by Z OH 6

You get 95% of the same performance as the 1LE pieces at a fraction of the cost and much easier installation. It's a no brainer really.

I have the same BK063 lockout kit, its price is actually the same as the ZL1 1LE solid bushings (or at least it was when I bought it), but installation is way easier indeed.

Z OH 6 · 09-11-2022, 11:49 AM

Quote:

Originally Posted by arpad_m

I have the same BK063 lockout kit, its price is actually the same as the ZL1 1LE solid bushings (or at least it was when I bought it), but installation is way easier indeed.

I thought the 1LE solid bushing kit was over $500, last time someone posted it, maybe I'm wrong.

09-10-2022, 07:49 PM	#1
Krowser Drives: ZL1 Mosaic Black Join Date: May 2016 Location: South Florida Posts: 302	BMR BK063 Rear Cradle Lockout Review Parts: 1. BMR BK063 Rear Cradle Lockout Kit Sold Separately 2. Forward, Rear Cradle Bolts: Part # 11547921 (74ftlbs + 90- 105 degrees) 3. Rearward, Rear Cradle Bolts/Stud: Part # 11611819 (74ftlbs + 90-105 degrees) Installed at: Redline Motosports, Florida - 1 to 1.5 hours Car: 2017 Camaro zl1 M6 with breathing mods - weekend car The BMR BK063 is necessary to greatly reduce slop and movement of the OEM rubber cradle bushings! Before Install: 1. Flat footed acceleration was smooth yet damped, almost like a roll into speed. 2. Rear end would move unpredictably at high speeds while changing lanes over un even pavement and become slightly unsettled over pavement lane reflectors. 3. While changing lanes quickly, rear end would catch up to the front end. 4. Taking sharp high speed turns, the rear would "waggle" and was not confidence inspiring. AFTER Install: (seat time - 3 days approx: 50 miles) 1. YOU CAN FEEL EVERY BIT OF ACCELERATION FROM ANY PEDDLE POSITION! 2. Rear end stays planted while changing lanes over un even pavement with no lateral movement. 3. The rear end moves DIRECTLY inline with the front end during acceleration while performing spirited lane changes. 4. Taking turns IS NIGHT AND DAY compared to stock, confidence up 90%!! Conclusion: Shame on GM for not making this device factory! If you have not done this mod on a regular ZL m6, you are truly missing what our cars feel like with hardly no wheel hop....this is truly a bolt-on where you WILL FEEL THE DIFFERENCE IMMEDIATELY!! Shout out to Howard from Redline Motorsports!! Last edited by Krowser; 09-10-2022 at 07:51 PM. Reason: spelling

09-11-2022, 06:37 AM	#7
XXX ZL1 Drives: 2023 ZL1 M6 Join Date: Sep 2018 Location: Pace FL Posts: 417	Very nice kit for sure. Had it and all BMR arms on my 19 and the rear felt drastically better. When my new gets here I’ll do the cradle and diff lockout on it. __________________ 2024 Riverside Blue ZL1 M6 Magnuson 2650R, NW 103, Roto Fab Big Gulp, Jet Hot Coated ARH 2 inch LT's, Stainless Works NPP, Too High PSI Billet Valve Covers, Mighty Mouse Wild CC Signature Forged 20x10.5/20x11.5, 295/30-315/30, BMR springs, BMR Cradle lockout, AAD Billet Control/Trailing arms 2023 Vivid Orange ZL1 M6 - sold 2019 Riverside Blue ZL1 A10 - sold

09-11-2022, 07:00 AM	#8
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,808	works great..it made a noticeable improvement in my '17 ZL1 __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

09-11-2022, 08:34 AM	#11
Smokin19 Drives: 19' ZL1 A10, w/pdr Join Date: Sep 2014 Location: S.W. ohio Posts: 1,551	I am happy with the results of my BMR lockout kit install. __________________ BTR Stg II cam w/ 38% fuel lobe, ARH 2" headers into 3" w/cats, AWE Touring, Kong X port, Weapon X triple ht exchangers, NW 103, Rotofab big gulp, DSX lowside, TCM tune, BMR Lockout, Mustang dyno 720 rwhp, 634 rwtq on 93 pump.

09-11-2022, 11:17 AM	#12
ST1LE Drives: E92 BMW M3 Join Date: Oct 2012 Location: Houston Posts: 4,496	This is on my list of first mods for sure. __________________ SOLD - 2013 1LE - Pat G Spec'd Cam, NPP with 1 7/8" Long Tube Headers with High Flow Cats, Intake w/scoop, Ported Throttle Body, and Apex 1.25" Lowering Springs. J-Rod Built and Matt@FSP Tuned

09-10-2022, 08:30 PM	#2
AZIROC Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019 Location: Arizona Posts: 734	Sounds good. I keep going back and forth on this and the 1le kit. The plus to this kit is you can do it in your garage vs the 1le needs the cradle to be dropped.

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