Buffalobillpatrick
Feb 3rd, 09, 7:27 PM
I'm trying to decide on which Rear Lower Control Arms?
Usage: Spirited Street & a little Strip.
I already have the Edelbrock adjustable rear upper arms with front spherical ball ends.
http://store.summitracing.com/partdetail.asp?autofilter=1&part=EDL%2D5248&N=700+0&autoview=sku
"These heavy-duty Edelbrock adjustable rear upper trailing arms allow you to adjust your vehicle's pinion angle for optimum handling and traction. They can be adjusted without having to remove them from the vehicle, and their special spherical ball ends allow the suspension to move more freely without bushing bind."
These 3 look good so far: Global West, Currectrac, & BMR
http://www.globalwest.net/1964-72_Chevelle,GTO,Olds_442,A-body_Rear_tubular_control_arms_and_braces..htm
$397.12 + S&H
"Part # TBC-4 --- Best for overall applications and performance.
TBC-4 has overall the best performance characteristics for combining drag, street, and road racing without developing undesirable side affects. The arm design uses Del-a-lum bushings on the rear end side and a spherical bearing on the frame side The Del-a-lum bushing controls lateral movement of the differential while the bearing allows for the rear suspension to travel through it's intended arc without bind. The result contributes to a smooth street ride and amazing rear end stability through corners. As for drag racing, the
TBC-4 controls lateral movement stopping the rear end from shifting sideways during a hard launch. The bearing also eliminates twisting loads on the frame at the lower control arm mounting point."
My comment: Del-a-lum bushings are suppose to be great, but what type & quality are these front end spherical bearings?
http://www.scandc.com/currectrac.htm
SC&C Currectrac Rear Control Arms $389.95 + S&H
"The converging 4 link rear suspension on many GM cars and all Fox body Mustangs have a problem. Their geometry requires the arms to flex to avoid binding up the suspension but this same flex can also lead to wheel hop and poor handling. Until now you had two choices,
Use the flexible stock arms or use beefy steel arms with hard bushings that helped the wheel hop but caused the suspension to bind in torsion causing erratic handling. Some attempts have been made to fix this problem with heim ends or steel bearings but they can transmit a lot of road noise to the body and are open to water and road grit so they wear much faster than stock components.
Now there's no more need to compromise! New Currectrac arms feature modular Johnny joints on the frame side to eliminate non linear binding issues. These joints allow a full 30 degrees of flex with no binding and are enclosed against dirt and weather for long life. They have polymer races for noise/vibration isolation, grease fittings and are so durable they are a favorite of the hardcore off-road crowd! All arms are direct fit, feature mounts for a factory type sway bar if required and are protected by a glossy black powder coat finish. The uppers arms are fully adjustable to set pinion angle and are among the beefiest adj. arms on the planet!
NEW! Currectrac Billet Aluminum lower arms for `64-`72 A body. The same great features as the steel Currectrac arms but much lighter. Finished in black anodizing with CNC machined highlights they also look really trick."
My comment: Don't need pretty Aluminum, front Jimmy joint sounds good, I think that the rear bushings are Poly??
http://www.bmrfabrication.com/A-Body.htm
"Stock control arms are marginal at best. Bushing deflection combined with control arm flex can create erratic handling and inconsistent rear end stability when subjected to the additional loads of performance driving. BMR lower control arms are built with heavy duty 1.5" x 3" rectangular tubing while uppers use 1-5/8" x .120" rollcage tubing. Together they make a bulletproof combination. Upper control arms are available in either fixed or adjustable versions. Adjustable uppers allow "on-car" pinion angle adjustment by simply loosening the jamnuts and turning the adjuster. No need to unbolt the control arm. These adjusters are by far the strongest in the industry. Made from 1-1/8" CNC machined steel and zinc plated for corrosion resistance, they truly are overkill!
For hardcore enthusiasts with cars NOT INTENDED FOR THE STREET we also offer our control arms with Heavy Duty Spherical bearings in place of bushings. We use only the best QA1 Teflon lined spherical bearings with CNC machined cups and bearing spacers."
BCA006 1964-1972 Boxed tube w/HD spherical bearings
$346.95 pr.
BCA007 1964-1972 Boxed tube with poly bushing/HD spherical bearing combo $289.95 pr.
My comment: NOT for Street? Do they mean that?
Cheapest but is the quality great?
What would be my best choice???
Usage: Spirited Street & a little Strip.
I already have the Edelbrock adjustable rear upper arms with front spherical ball ends.
http://store.summitracing.com/partdetail.asp?autofilter=1&part=EDL%2D5248&N=700+0&autoview=sku
"These heavy-duty Edelbrock adjustable rear upper trailing arms allow you to adjust your vehicle's pinion angle for optimum handling and traction. They can be adjusted without having to remove them from the vehicle, and their special spherical ball ends allow the suspension to move more freely without bushing bind."
These 3 look good so far: Global West, Currectrac, & BMR
http://www.globalwest.net/1964-72_Chevelle,GTO,Olds_442,A-body_Rear_tubular_control_arms_and_braces..htm
$397.12 + S&H
"Part # TBC-4 --- Best for overall applications and performance.
TBC-4 has overall the best performance characteristics for combining drag, street, and road racing without developing undesirable side affects. The arm design uses Del-a-lum bushings on the rear end side and a spherical bearing on the frame side The Del-a-lum bushing controls lateral movement of the differential while the bearing allows for the rear suspension to travel through it's intended arc without bind. The result contributes to a smooth street ride and amazing rear end stability through corners. As for drag racing, the
TBC-4 controls lateral movement stopping the rear end from shifting sideways during a hard launch. The bearing also eliminates twisting loads on the frame at the lower control arm mounting point."
My comment: Del-a-lum bushings are suppose to be great, but what type & quality are these front end spherical bearings?
http://www.scandc.com/currectrac.htm
SC&C Currectrac Rear Control Arms $389.95 + S&H
"The converging 4 link rear suspension on many GM cars and all Fox body Mustangs have a problem. Their geometry requires the arms to flex to avoid binding up the suspension but this same flex can also lead to wheel hop and poor handling. Until now you had two choices,
Use the flexible stock arms or use beefy steel arms with hard bushings that helped the wheel hop but caused the suspension to bind in torsion causing erratic handling. Some attempts have been made to fix this problem with heim ends or steel bearings but they can transmit a lot of road noise to the body and are open to water and road grit so they wear much faster than stock components.
Now there's no more need to compromise! New Currectrac arms feature modular Johnny joints on the frame side to eliminate non linear binding issues. These joints allow a full 30 degrees of flex with no binding and are enclosed against dirt and weather for long life. They have polymer races for noise/vibration isolation, grease fittings and are so durable they are a favorite of the hardcore off-road crowd! All arms are direct fit, feature mounts for a factory type sway bar if required and are protected by a glossy black powder coat finish. The uppers arms are fully adjustable to set pinion angle and are among the beefiest adj. arms on the planet!
NEW! Currectrac Billet Aluminum lower arms for `64-`72 A body. The same great features as the steel Currectrac arms but much lighter. Finished in black anodizing with CNC machined highlights they also look really trick."
My comment: Don't need pretty Aluminum, front Jimmy joint sounds good, I think that the rear bushings are Poly??
http://www.bmrfabrication.com/A-Body.htm
"Stock control arms are marginal at best. Bushing deflection combined with control arm flex can create erratic handling and inconsistent rear end stability when subjected to the additional loads of performance driving. BMR lower control arms are built with heavy duty 1.5" x 3" rectangular tubing while uppers use 1-5/8" x .120" rollcage tubing. Together they make a bulletproof combination. Upper control arms are available in either fixed or adjustable versions. Adjustable uppers allow "on-car" pinion angle adjustment by simply loosening the jamnuts and turning the adjuster. No need to unbolt the control arm. These adjusters are by far the strongest in the industry. Made from 1-1/8" CNC machined steel and zinc plated for corrosion resistance, they truly are overkill!
For hardcore enthusiasts with cars NOT INTENDED FOR THE STREET we also offer our control arms with Heavy Duty Spherical bearings in place of bushings. We use only the best QA1 Teflon lined spherical bearings with CNC machined cups and bearing spacers."
BCA006 1964-1972 Boxed tube w/HD spherical bearings
$346.95 pr.
BCA007 1964-1972 Boxed tube with poly bushing/HD spherical bearing combo $289.95 pr.
My comment: NOT for Street? Do they mean that?
Cheapest but is the quality great?
What would be my best choice???