spring perches - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Milenko72276 · 04-12-2002, 04:36 PM

Are the spring perches on 73-87' rears the same as 67-72' leaf spring trucks?

Vince M · 04-12-2002, 04:55 PM

I used the perches that were on the 14 bolt rear I bought...only had to move them.

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Orlando,FL
72 Chevy 4x4 3/4T CustomCamper w/SB 406

SCOTI · 04-12-2002, 04:57 PM

I dont believe so as the springs are different widths & the frames are slightly diff in that area. If nobody else can confirm this I can check my buddies 82 truck over the weekend & compare it w/the leaf set-up on my 67 parts truck. Oopps..I just re-read the post. Did you mean: are the shackles/hangers different yr to yr, or: are the perches on the housings & their location different?

[This message has been edited by SCOTI (edited April 12, 2002).]

Vince M · 04-12-2002, 05:14 PM

Yep..now that I reread it...I'm not sure if your talking about the actual perch or the dimensions..!!

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Orlando,FL
72 Chevy 4x4 3/4T CustomCamper w/SB 406

69 longhorn · 04-12-2002, 05:31 PM

The c to c spacing on my 79 c20 is 42 1/2,The 79 K 20 has the same spacing. It is my understanding that the 67-72 with leaf have the same spacing ,with the exception of the 4X4,& the longhorn which are 40" c to c. the 73 up 1tons also have the 40" spacing. The shock mounts are different on the 73 up trucks,& will requier welding in that area. as for the frames,the longhorn is 34" across,& my 79 is slightly wider(1/8-3/16)....I would have to check for sure.....69 longhorn.

SCOTI · 04-12-2002, 05:34 PM

Glad I'm not the only one whose eyes work slower than his/her brain...now if I could only get my mouth to work slower than my brain life would be much easier @ times.

Milenko72276 · 04-17-2002, 12:20 AM

I guess I should've been a little more specific.I was actually meaning the width because I want to replace the Eaton in my 72' with a 76' 14bolt corp.Thanks though.

DHregdovic · 04-17-2002, 07:47 AM

I have a 14 bolt corp rearend in mine. It was already there when I got the truck. It looks to me like they moved the shock mounts and that's it.

04-12-2002, 04:36 PM	#1
Milenko72276 Registered User Join Date: Feb 2002 Location: Richmond MO,USA Posts: 73	spring perches Are the spring perches on 73-87' rears the same as 67-72' leaf spring trucks? __________________ 72' Camper Special,454,th350,np205,4.56 locker,dana44 with spool,13" of lift and 44" boggers.soon to be 23" with rear disc brakes

04-12-2002, 04:55 PM	#2
Vince M Senior Member Join Date: Apr 2000 Location: Orlando, FL Posts: 1,076	I used the perches that were on the 14 bolt rear I bought...only had to move them. ------------------ Orlando,FL 72 Chevy 4x4 3/4T CustomCamper w/SB 406 __________________ ............................................................ 68 Chevy CST SWB w/LS1, carb & 700r4. Golden Anniversary clone with a few improvements.

04-12-2002, 04:57 PM	#3
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,098	I dont believe so as the springs are different widths & the frames are slightly diff in that area. If nobody else can confirm this I can check my buddies 82 truck over the weekend & compare it w/the leaf set-up on my 67 parts truck. Oopps..I just re-read the post. Did you mean: are the shackles/hangers different yr to yr, or: are the perches on the housings & their location different? [This message has been edited by SCOTI (edited April 12, 2002).] __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

04-12-2002, 05:14 PM	#4
Vince M Senior Member Join Date: Apr 2000 Location: Orlando, FL Posts: 1,076	Yep..now that I reread it...I'm not sure if your talking about the actual perch or the dimensions..!! ------------------ Orlando,FL 72 Chevy 4x4 3/4T CustomCamper w/SB 406 __________________ ............................................................ 68 Chevy CST SWB w/LS1, carb & 700r4. Golden Anniversary clone with a few improvements.

04-12-2002, 05:31 PM	#5
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	The c to c spacing on my 79 c20 is 42 1/2,The 79 K 20 has the same spacing. It is my understanding that the 67-72 with leaf have the same spacing ,with the exception of the 4X4,& the longhorn which are 40" c to c. the 73 up 1tons also have the 40" spacing. The shock mounts are different on the 73 up trucks,& will requier welding in that area. as for the frames,the longhorn is 34" across,& my 79 is slightly wider(1/8-3/16)....I would have to check for sure.....69 longhorn. __________________ http://community.webshots.com/user/hotrodhorn

04-12-2002, 05:34 PM	#6
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,098	Glad I'm not the only one whose eyes work slower than his/her brain...now if I could only get my mouth to work slower than my brain life would be much easier @ times. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

04-17-2002, 12:20 AM	#7
Milenko72276 Registered User Join Date: Feb 2002 Location: Richmond MO,USA Posts: 73	I guess I should've been a little more specific.I was actually meaning the width because I want to replace the Eaton in my 72' with a 76' 14bolt corp.Thanks though. __________________ 72' Camper Special,454,th350,np205,4.56 locker,dana44 with spool,13" of lift and 44" boggers.soon to be 23" with rear disc brakes

04-17-2002, 07:47 AM	#8
DHregdovic Registered User Join Date: Jan 2002 Location: Beaver County, PA Posts: 46	I have a 14 bolt corp rearend in mine. It was already there when I got the truck. It looks to me like they moved the shock mounts and that's it. __________________ 67 LWB GMC 250 inline w/4spd manual Disc/power brake conversion

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