Lower Control Arm Relocation Brackets
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Joined: Oct 2006
Posts: 365
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From: Melbourne,Fl
Car: 1989 TRANS AM GTA
Engine: 355 L98
Transmission: Built 700r4
Axle/Gears: BW 3.27
Lower Control Arm Relocation Brackets
I have been wanting buy these for a while but after some research that missed when choosing my sfc"s i figured it wouldnt hurt to ask which company makes the best part thanx for any and all help...Charles
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Member
Joined: Oct 2006
Posts: 365
Likes: 0
From: Melbourne,Fl
Car: 1989 TRANS AM GTA
Engine: 355 L98
Transmission: Built 700r4
Axle/Gears: BW 3.27
Re: Lower Control Arm Relocation Brackets
I plan on getting the weld in kind and the only difference i can see is price,am i correct?
Re: Lower Control Arm Relocation Brackets
You got it, that and weld ins don't come powder coated. (not a big deal) I run BMR's on my 2000 and J&M Hotparts on my 91'. The BMR's seemed to fit a little better, but that could even be manufacturing tolerances between vehicles. BTW - I have bolt in LCA brackets on both cars. I found the J&M's on eBay at a great price.
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Car: 86 camaro
Engine: 385
Transmission: glide
Axle/Gears: moser 12 bolt spool 4.11
Re: Lower Control Arm Relocation Brackets
makes the car plant the rear tires which in term picks the rear of the car up. changes the angle of the lower control arms, there is a sticky on this in the suspension forum. just put weld in relos from umi in about 3 days ago. car left harder then it ever has last night. pulled the wheels for the first time on a full weight street car 3880 lbs with me in it. definatly a great suspension upgrade.
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Joined: Jul 2006
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From: 4-22 / 7-25
Car: '91 Z28 L98 G92
Engine: Modded L98
Transmission: Modded 700R4
Axle/Gears: Modded 10-Bolt
Re: Lower Control Arm Relocation Brackets
makes the car plant the rear tires which in term picks the rear of the car up. changes the angle of the lower control arms, there is a sticky on this in the suspension forum. just put weld in relos from umi in about 3 days ago. car left harder then it ever has last night. pulled the wheels for the first time on a full weight street car 3880 lbs with me in it. definatly a great suspension upgrade.
Bill
Joined: Oct 2006
Posts: 3,041
Likes: 8
From: West of Toronto
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: Lower Control Arm Relocation Brackets
I have UMI and love them......
Joined: Mar 2004
Posts: 1,643
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From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: Lower Control Arm Relocation Brackets
I have spohn's weld in's.
They are great. Definitly a must if you are traction problems.
They are great. Definitly a must if you are traction problems.
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From: Santa Rosa, Cali
Car: 1988 IROC 5.7 Money Pit
Engine: (being built; modified TPI ZZ4
Transmission: 2200 stall/ stage 3 700R4
Axle/Gears: freshened 3.27 in 9.bolt/
Re: Lower Control Arm Relocation Brackets
Is there an approx power ratio break that points to when they're needed? Although lower gears is going to place the available torque as more important than an hp rating.Hmmm. I thought the relocation brackets were just for lowered cars. I'll have to head on over to the suspension site and read the sticky- Nitro
UMI sure does make a top level product...........
UMI sure does make a top level product...........
Joined: Nov 2000
Posts: 1,022
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From: Newington, CT
Car: 88 IROC
Engine: 5.7 RamJet
Transmission: T56
Axle/Gears: Dana44 4.10
Re: Lower Control Arm Relocation Brackets
The design is different depending on manufacturer. I bought the Spohns and should have tried someone else. Looking at pics the BMRs probably would have worked better for me. I had to remove quite a bit of material to get the e brake set up to clear the relocation brackets. BMRs design looks like it would have cleared with no modification needed.
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Posts: 383
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From: NY
Car: 88IROC, 91Z28 + parts cars
Engine: 355, 408
Transmission: T56
Axle/Gears: 3.42 LS1, 9" w/ 4.56 and spool
Re: Lower Control Arm Relocation Brackets
top down solutions(TDS.net) sells a nice set manufactured by alston racing they run from the front where they bolt up right behind the transmission crossmember to the rear where they install just forward of the LCAs on the rear subframe. I went with these because they're a nice beafy tubing and I liked the bolt and weld in approach for convience along with them being the only ones i found that went directly to the subframes and don't interfere with running big exhausts for aftermarket suspension pieces.
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From: Manchester, CT + Nashua, NH
Car: 90 Firebird Formula
Engine: LO3
Transmission: T5
Axle/Gears: 3.08 one wheel peel
Re: Lower Control Arm Relocation Brackets
top down solutions(TDS.net) sells a nice set manufactured by alston racing they run from the front where they bolt up right behind the transmission crossmember to the rear where they install just forward of the LCAs on the rear subframe. I went with these because they're a nice beafy tubing and I liked the bolt and weld in approach for convience along with them being the only ones i found that went directly to the subframes and don't interfere with running big exhausts for aftermarket suspension pieces.
Joined: Nov 2005
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From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
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From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Re: Lower Control Arm Relocation Brackets
Just installed UMI LCARBS last night. They were a great fit and very high quality part. I would def recommend them. I still am not hooking but they def helped improve traction.
Supreme Member
Joined: Aug 2003
Posts: 1,644
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From: Long Island New York
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
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Joined: Feb 2008
Posts: 389
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From: Summerland, B.C
Car: 1982 Trans am
Engine: 383
Transmission: AGE M22Z
Axle/Gears: Moser 9" 3.70 detroit locker
Re: Lower Control Arm Relocation Brackets
I just installed a set of edelbrock weld on lower control arm brackets they work great. they really help it hook up
Senior Member
Joined: Apr 2007
Posts: 394
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From: Huntington, NY
Car: 1983 Pontiac Firebird
Engine: LG4 305ci 4bbl
Transmission: 700r4
Axle/Gears: 10-bolt open diff.
Re: Lower Control Arm Relocation Brackets
quick question about the LCARB's- do you need to use the adjustable LCA's when you install the brackets or can you use the stock length non-adjustable ones?
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From: anderson ,sc
Car: 89 formula/00 z28
Engine: carbed 350/ls1
Transmission: 700r4/ a4
Axle/Gears: 3.23 posi/ 3.73 posi
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From: costa mesa/A.D. the largest Emirate
Car: 88 Formula 350
Engine: 5----->.7 or so they say
Transmission: seven hundred with a remainder of 4
Axle/Gears: 9 bolt 3.27
Re: Lower Control Arm Relocation Brackets
I've heard about this suspension upgrade and its benefits at the 1/4 drags but does it hinder/help when taking turns/cornering?
Thanks for your input.
Rabi C.
Thanks for your input.
Rabi C.
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From: Leicester,Massachusetts
Car: 1983 CHEVROLET CAMARO Z28
Engine: Forged 355 with a GT45 turbo
Transmission: TKO 600
Axle/Gears: built 4th gen rear with 3.27s
Re: Lower Control Arm Relocation Brackets
i put a pair of umi relocation brackets in they were bolt in but i welded them in. excellent
Senior Member
Joined: Oct 2007
Posts: 641
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Car: 91 RS
Engine: 350 TPI
Transmission: T5
Axle/Gears: 3.45
Re: Lower Control Arm Relocation Brackets
Im about to put some in myself from UMI. im also putting eibachs in so i know i need the LCARB's. has anyone installed these? it looks like part of the RB hooks up with the bottom shock so do you just lift up the car by the rear end and support it with the jack?
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Senior Member
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From: Southern Wisconsin
Car: 1988 Camaro
Engine: 383 Stroker
Transmission: Probuilt 700 R4
Axle/Gears: 3.73
Re: Lower Control Arm Relocation Brackets
Is there any difference between the weld ins compared to the bolt ins.
Joined: Nov 2005
Posts: 2,346
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From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: Lower Control Arm Relocation Brackets
Weld in

Bolt in

The bolt in can also be welded on for extra support. I got the bolt ins, and I will get them welded on when I put the 4th gen rear in. Bolt ins also allow you to install them yourself.

Bolt in

The bolt in can also be welded on for extra support. I got the bolt ins, and I will get them welded on when I put the 4th gen rear in. Bolt ins also allow you to install them yourself.
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Re: Lower Control Arm Relocation Brackets
these help even if you do not have wheel hop issues correct?
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: Lower Control Arm Relocation Brackets
From UMI's websight:
Lower control arm relocation brackets reposition your instant center by changing your lower control arm angle for improved traction. Relocation brackets lower the rear of the control arm up to 3", a must for all lowered vehicles to correct lost suspension geometry. By lowering your vehicle, you are changing the lower control arm angle allowing the rear mounting point to sit higher than the front. This will, in return, cause wheel hop and a great deal of traction loss. Lower control arm relocation brackets allow you to correct this angle and gain back much needed traction. On a stock height vehicle relocation brackets will also work excellent to eliminate tire spin and wheel hop by changing the vehicles instant center point. Note: Bolt-on relocation brackets will not work with aftermarket rear ends.
Lowered Vehicles: We do not recommend lowering a 3rd or 4th generation F-Body without lower control arm relocation brackets due to the compromise in the geometry on the instant center. Brackets will significantly improve instant center position, eliminate wheel hop and increase traction. Brackets installed will also help 60-foot times of .10 or better, lower ETs and increase track consistency--a must for all lowered vehicles!
Non-Lowered Vehicles: Product installed on a stock height vehicle will also see a great increase in traction by lowering the rearward angle of the lower control arm, allowing more force to be placed on the rear tires. Relocation brackets have two settings to allow the lower control arm to be lowered either 2" or 3", depending on your preference. Settings are placed in a correct pattern that will allow use of all OEM control arms or any aftermarket control arm (brackets do not require a longer control arm.) Brackets installed on a non-lowered F-Body provide a .10 or better 60-foot; reduction and an increase in track consistency.
Lowered Vehicles: We do not recommend lowering a 3rd or 4th generation F-Body without lower control arm relocation brackets due to the compromise in the geometry on the instant center. Brackets will significantly improve instant center position, eliminate wheel hop and increase traction. Brackets installed will also help 60-foot times of .10 or better, lower ETs and increase track consistency--a must for all lowered vehicles!
Non-Lowered Vehicles: Product installed on a stock height vehicle will also see a great increase in traction by lowering the rearward angle of the lower control arm, allowing more force to be placed on the rear tires. Relocation brackets have two settings to allow the lower control arm to be lowered either 2" or 3", depending on your preference. Settings are placed in a correct pattern that will allow use of all OEM control arms or any aftermarket control arm (brackets do not require a longer control arm.) Brackets installed on a non-lowered F-Body provide a .10 or better 60-foot; reduction and an increase in track consistency.
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Then you get a bit of added support from the shock mount. 
