Radi. Core Support Bushing Questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rodstored-72 · 12-05-2005, 04:10 PM

well i am now in the process of trying to put on the radi. core support to the frame. i bought the energy susp. kit for my truck & the body bushings worked great. i am not having such great luck with the radi core support though.

the bushings don't seem to fit snug in the hole of the frame mount. the "flange" of the bushings are smaller then the whole in the frame, by about a good 3/4". the wholes in the frame measure the same dia. of 1-11/16" give or take. so i am wondering if anyone here has replaced their bushings there & what their fit was like?

i called energy suspension & i have the correct bushings to them, but they could not answer how the bushings fit within the frame hole. i am under the impression that the "lip" of the bushing should fit snug in the frame hole. if not then wouldn't the radi. core support want to move around within the whole of the frame????

if you guys have any good pics of how your front radi support is mounted to the frame that would be a good help as well. the truck is a '72 chevy 1/2 ton 2wd short box.

thanks for the help in advance!!!

rodstored-72

blazerparts · 12-05-2005, 06:55 PM

I just installed a prothane body mount kit on the blazer. I noticed the same thing, bushings are smaller than hole in radiator support. I don't think it will matter much as the bushings are designed mostly for vertical loading and not so much for lateral, hence the sloppy fit is acceptable..........I hope.

**Green Machine** · 12-05-2005, 11:21 PM

The stock ones are the same way, you need some room for adjustment side to side so the front clip centers on the bumper and frameand some fore and aft adjustment to line up with the cab and doors.

rodstored-72 · 12-05-2005, 11:40 PM

green machine
you are probably right. it just seems that with that much room the support would be easy to push one side to the other. what keeps the support from doing that???

thanks for your responses. please keep them coming!

rodstored-72

**Green Machine** · 12-06-2005, 12:18 AM

I guess when the bolt gets tightened, there must be enough clamping force to keep it from sliding around ???

rodstored-72 · 12-06-2005, 10:20 AM

well,
i am going to go to ricks pickup parts (in mesa) this afternoon & compare my bushings to the stock replacement ones. if there is know difference then you guys are right. if there is a difference then i will buy the stock ones & then see about getting some money back from the place where i bought the poly ones!

thanks again for the responses!!!

rodstored-72

12-05-2005, 04:10 PM	#1
rodstored-72 chevy truck fan Join Date: Mar 2005 Location: Gilbert, arizona 85298 Posts: 1,981	Radi. Core Support Bushing Questions well i am now in the process of trying to put on the radi. core support to the frame. i bought the energy susp. kit for my truck & the body bushings worked great. i am not having such great luck with the radi core support though. the bushings don't seem to fit snug in the hole of the frame mount. the "flange" of the bushings are smaller then the whole in the frame, by about a good 3/4". the wholes in the frame measure the same dia. of 1-11/16" give or take. so i am wondering if anyone here has replaced their bushings there & what their fit was like? i called energy suspension & i have the correct bushings to them, but they could not answer how the bushings fit within the frame hole. i am under the impression that the "lip" of the bushing should fit snug in the frame hole. if not then wouldn't the radi. core support want to move around within the whole of the frame???? if you guys have any good pics of how your front radi support is mounted to the frame that would be a good help as well. the truck is a '72 chevy 1/2 ton 2wd short box. thanks for the help in advance!!! rodstored-72

12-05-2005, 06:55 PM	#2
blazerparts No,I DON'T have Tourett's Join Date: Mar 2005 Location: Reno, NV Posts: 556	Re: Radi. Core Support Bushing Questions I just installed a prothane body mount kit on the blazer. I noticed the same thing, bushings are smaller than hole in radiator support. I don't think it will matter much as the bushings are designed mostly for vertical loading and not so much for lateral, hence the sloppy fit is acceptable..........I hope. __________________ '72 K5 CST 350/350 Daily Driver '69 GMC3500 Camper Special CST Flatbed 396/400 Upgraded to show truck '69 GMC 2500 L6292, 3spd beater

12-05-2005, 11:21 PM	#3
Green Machine Senior Member Join Date: Jul 2004 Location: Estherville, Iowa Posts: 3,371	Re: Radi. Core Support Bushing Questions The stock ones are the same way, you need some room for adjustment side to side so the front clip centers on the bumper and frameand some fore and aft adjustment to line up with the cab and doors. __________________ 1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0

12-05-2005, 11:40 PM	#4
rodstored-72 chevy truck fan Join Date: Mar 2005 Location: Gilbert, arizona 85298 Posts: 1,981	Re: Radi. Core Support Bushing Questions green machine you are probably right. it just seems that with that much room the support would be easy to push one side to the other. what keeps the support from doing that??? thanks for your responses. please keep them coming! rodstored-72

12-06-2005, 12:18 AM	#5
Green Machine Senior Member Join Date: Jul 2004 Location: Estherville, Iowa Posts: 3,371	Re: Radi. Core Support Bushing Questions I guess when the bolt gets tightened, there must be enough clamping force to keep it from sliding around ??? __________________ 1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0

12-06-2005, 10:20 AM	#6
rodstored-72 chevy truck fan Join Date: Mar 2005 Location: Gilbert, arizona 85298 Posts: 1,981	Re: Radi. Core Support Bushing Questions well, i am going to go to ricks pickup parts (in mesa) this afternoon & compare my bushings to the stock replacement ones. if there is know difference then you guys are right. if there is a difference then i will buy the stock ones & then see about getting some money back from the place where i bought the poly ones! thanks again for the responses!!! rodstored-72



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