Identifying a camaro subframe year - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Spblack · 12-10-2013, 09:53 PM

I know a few people have been having a difficult time identifying the year models of their Camaro subframes that are installed on their truck. I spoke with a Camaro parts dealer and this is what he gave me for identifying your front end. Hope this helps.

FB235 1-5/8
FB295 1-1/4
FB329 1-1/8
FB330 1-5/8
FB331 1-7/8
FB422 1-5/16
FB424 1-5/16

All measurements are rough / approximate done with a measuring tape.

Generally speaking, 70-72 cars used 4-FB329 for the upper and 2-FB235 and 2-FB295 for the lower.
73-74 cars changed the lowers to FB330 and FB331.
75-79 cars used 2-FB329 and 2-FB422 uppers, and 2-FB330 and 2-FB331 lowers.
80-81 cars were the same as 75-79 but the upper rear changed from 2-FB329 to 2-FB424.

Also, look at the outer tie rod ends.
70-74 cars were about 6-5/8 inches long.
75-81 cars were about 9 inches long.

LOW A D · 12-11-2013, 12:01 AM

Pardon my ignorance, but these measurements are for what? I am right now trying to find out what year subframe I have so I can order rebuild parts

dwcsr · 12-11-2013, 02:37 AM

I went through this a few years ago. On the A Arm bushings is a number and if you can read it and do a cross reference in a Moog book you can find the year of the clip.

**mr48chev** · 12-11-2013, 12:19 PM

Good info but as the guys said you really should have given us a bit of an explanation at the start for the folks who's decoder rings have dead batteries. It took me reading it three times to figure out what you were telling us.

bowt1ed · 12-11-2013, 02:41 PM

I have the following stamped on my (what I believed to be) Camaro A Arms: K2B9L and K1B9R. Any idea on these? Thanks, Jim

dwcsr · 12-11-2013, 03:26 PM

Quote:

Originally Posted by mr48chev

Good info but as the guys said you really should have given us a bit of an explanation at the start for the folks who's decoder rings have dead batteries. It took me reading it three times to figure out what you were telling us.

He did that to confuse the NSA.

1958Warrior · 12-13-2013, 05:37 AM

Another difference is the spindles and rotors :
up till 1978 the outer front spindle is smaller dia .610,(uses A2 bearing)
while 1979-1981 have a larger spindle dia .690(uses A3 bearing)

So if you want to use drop spindles need to know which will work with your rotors.
...ask me how I know that.

12-10-2013, 09:53 PM	#1
Spblack Registered User Join Date: Oct 2013 Location: spring Posts: 287	Identifying a camaro subframe year I know a few people have been having a difficult time identifying the year models of their Camaro subframes that are installed on their truck. I spoke with a Camaro parts dealer and this is what he gave me for identifying your front end. Hope this helps. FB235 1-5/8 FB295 1-1/4 FB329 1-1/8 FB330 1-5/8 FB331 1-7/8 FB422 1-5/16 FB424 1-5/16 All measurements are rough / approximate done with a measuring tape. Generally speaking, 70-72 cars used 4-FB329 for the upper and 2-FB235 and 2-FB295 for the lower. 73-74 cars changed the lowers to FB330 and FB331. 75-79 cars used 2-FB329 and 2-FB422 uppers, and 2-FB330 and 2-FB331 lowers. 80-81 cars were the same as 75-79 but the upper rear changed from 2-FB329 to 2-FB424. Also, look at the outer tie rod ends. 70-74 cars were about 6-5/8 inches long. 75-81 cars were about 9 inches long.

12-11-2013, 12:01 AM	#2
LOW A D Registered User Join Date: Jun 2013 Location: Winnipeg Manitoba Posts: 177	Re: Identifying a camaro subframe year Pardon my ignorance, but these measurements are for what? I am right now trying to find out what year subframe I have so I can order rebuild parts

12-11-2013, 02:37 AM	#3
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: Identifying a camaro subframe year I went through this a few years ago. On the A Arm bushings is a number and if you can read it and do a cross reference in a Moog book you can find the year of the clip.

12-11-2013, 12:19 PM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,710	Re: Identifying a camaro subframe year Good info but as the guys said you really should have given us a bit of an explanation at the start for the folks who's decoder rings have dead batteries. It took me reading it three times to figure out what you were telling us. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

12-11-2013, 02:41 PM	#5
bowt1ed Registered User Join Date: Apr 2011 Location: Virginia Beach, VA Posts: 514	Re: Identifying a camaro subframe year I have the following stamped on my (what I believed to be) Camaro A Arms: K2B9L and K1B9R. Any idea on these? Thanks, Jim

12-13-2013, 05:37 AM	#7
1958Warrior Registered User Join Date: Mar 2013 Location: Mesquite,Tx Posts: 416	Re: Identifying a camaro subframe year Another difference is the spindles and rotors : up till 1978 the outer front spindle is smaller dia .610,(uses A2 bearing) while 1979-1981 have a larger spindle dia .690(uses A3 bearing) So if you want to use drop spindles need to know which will work with your rotors. ...ask me how I know that.



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