rolfmao ! the Big10/Heavy Half 12 bolt shafts are same length - The 1947 - Present Chevrolet & GMC Truck Message Board Network

*Fast68Chevy* · 04-26-2002, 10:24 PM

lmoa! the big 10(2.75" wide brakes) 12 bolt axle shafts are same exact length as 70-72 12 bolt shafts! are all 31 3.8" long! lol!

cool deal

------------------
Randy- Lincoln, IL

r68c30@hotmail.com 2177353230
-71 C-10 350/CH465/3.07, assemble it, yeah right, that'll happen in this world,(not)
-84 Z28 Camaro 5.0L 700R4, 3.73, beater, paid way too much for it like an idiot,,
-84 Firebird SE 2.8L T-5, rod knocking, dammit,,
-82 Firebird 350 4bolt (TBL)/TH350, not running, dammit...
buy/sell/hoard/trade most any GM vehicle parts of any kind
-parting out: '81 Cutlass Supreme Brougham
*Paint is overrated
© RSS Enterprises 2000

**68SWB4x4** · 04-26-2002, 10:49 PM

uhh cool? this dosnt help because those trucks already have 5 lug (expect the 70 duh)

------------------
My Truck pictures

www.xframeimpala.com

68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET"
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350
IM me on aol SN= SHAGROLET

*Fast68Chevy* · 04-26-2002, 11:21 PM

yes, for 70, i know you arent too thrilled about it and think its useless info, but maybe someone else can use this info, and may be looking for shafts to get 5 bolt into their 70 axle and this would be a source for shafts, i know you see this as retarded and not as helpful info at all, im sorry
also would be good for 4x4 trucks converting to 2wd when wanting to go to 5 bolt, etc
i hope not all californians are so jaded when it comes to new info no matter how useless to them it may be,

------------------
Randy- Lincoln, IL

r68c30@hotmail.com 2177353230
-71 C-10 350/CH465/3.07, assemble it, yeah right, that'll happen in this world,(not)
-84 Z28 Camaro 5.0L 700R4, 3.73, beater, paid way too much for it like an idiot,,
-84 Firebird SE 2.8L T-5, rod knocking, dammit,,
-82 Firebird 350 4bolt (TBL)/TH350, not running, dammit...
buy/sell/hoard/trade most any GM vehicle parts of any kind
-parting out: '81 Cutlass Supreme Brougham
*Paint is overrated
© RSS Enterprises 2000

[This message has been edited by Fast68Chevy (edited April 26, 2002).]

**68SWB4x4** · 04-26-2002, 11:57 PM

hmmmmm ok you took that wrong..... what i meant was it would be alot more useful if they were the same length as 67-69 shafts....
trust me must people in california are a helluva lot more jaded than me

on a similar note i recently found out 68 diff cover bolts are 7/16th length while 72 ones are 3/8ths

------------------
My Truck pictures

www.xframeimpala.com

68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET"
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350
IM me on aol SN= SHAGROLET

[This message has been edited by 68SWB4x4 (edited April 27, 2002).]

kaycee · 04-27-2002, 06:29 PM

ttt So the only way to tell is to measure shoe/drum.What is an easier way to tell?And might I say that is some good info u all said

rodshop454 · 04-27-2002, 07:16 PM

As far as the shaft size goes I've been told by alot of junk yards, I'm sorry, Auto Recylcle centers, that only 71 and 72 axles will fit in a 71-72 rear end. Not true! I've used a posi, housing and all, just pulled the axles,from a 68 truck- with 72 axles. The 67 axles are shorter and won't fit. take both axles from a 6 bolt "68-70" drum and a 5 bolt axle and there the same length and seal diam. Just a little info I've found. Junk yards around here always want more for a 71/72 posi than they do for a 68-70 one and they will work!

ViperRed67 · 04-29-2002, 01:49 PM

I thought I would throw in that the 67-68 coil spring rears are narrower then the leaf axles. Also the 67 axle is about 1/2 inch per side narrower then the 70 up coil type to.

jason7627 · 04-29-2002, 10:54 PM

Does this mean I can swap the rears to 2.75" wide shoes by just swapping everything from the backing plates out?

*Fast68Chevy* · 04-30-2002, 12:24 AM

i hear that it can be done to the 64-69 housings, yeah, i stil have yet to make time to do measuring on those housings and do a swap to see if it works sine i have a 78 model 2.75 brake axle here i parted the carrier out of, want to make it work on a 70-72 housing, but may be too wide, so hmm, crappy thast the 73-up shafts are same length as the 70-72 shafts, they may not be long enough to allow use of 2.75 plates and shoesa nd drum on 70-72 housings, cant see why it owuld work if housings are acutally longer in 70-72 than 73, which i believe are, i need to measure that width at the axle tube flanges directly at where the paltes bolt on to the flanges,
i noticed that the 2.75 brake plates have alot more offset than the 2" ones, so hm ,tat may make up for it and it all may work fine on any housing, that would be wild.. never know..... 2.75" shoes upgrade would be great

------------------
Randy- Lincoln, IL
randy@ccaonline.com 2177353230
-71 C-10 350/CH465/3.07, assemble it, yeah right, that'll happen in this world,(not)
-84 Z28 Camaro 5.0L 700R4, 3.73, beater, paid way too much for it like an idiot,,
-84 Firebird SE 2.8L T-5, rod knocking, dammit,,
-82 Firebird 350 4bolt (TBL)/TH350, not running, dammit...
buy/sell/hoard/trade most any GM vehicle parts of any kind
-parting out: '81 Cutlass Supreme Brougham
*Paint is overrated
© RSS Enterprises 2000

[This message has been edited by Fast68Chevy (edited April 30, 2002).]

mrein3 · 04-30-2002, 07:07 AM

Last spring or the spring before da-burb stood on dry ground and handed me wrenches while I was rolling around in the mud pulling the rear axels out of a 75 or 76 4wd Blazer for my 1971 4x4 chassis. They bolted (slid?) right in and are in use to this day.

jason7627 · 04-30-2002, 11:05 PM

Fast68Chevy, seems to me if the axles are the same length, then they should fit. Wouldn't be suprised if the backing plates are offset to make up for the extra width. I've got a '72 1/2t that I would love to put the big shoes on, heck of alot cheaper than discs.

**68SWB4x4** · 04-30-2002, 11:53 PM

mrein, thats wierd ive always heard the axle pad spacing is diffrent, hopefully my 14 bolt will slide right into my 68 4x4....

------------------
My Truck pictures

www.xframeimpala.com

68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET"
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350
IM me on aol SN= SHAGROLET

ViperRed67 · 05-01-2002, 09:00 AM

Heavy half?? Whats really funny is when I was in the Air force we used long bed 1/2 ton 4x4 trucks and blazers. They were rated as 3/4 tons. Same trucks as the street versions, just a tad more in the heavy duty department such as tranny coolers and some different frame bracing here and there. But they still ran the 12 bolt axles..

04-26-2002, 10:24 PM	#1
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	rolfmao ! the Big10/Heavy Half 12 bolt shafts are same length lmoa! the big 10(2.75" wide brakes) 12 bolt axle shafts are same exact length as 70-72 12 bolt shafts! are all 31 3.8" long! lol! cool deal ------------------ Randy- Lincoln, IL r68c30@hotmail.com 2177353230 -71 C-10 350/CH465/3.07, assemble it, yeah right, that'll happen in this world,(not) -84 Z28 Camaro 5.0L 700R4, 3.73, beater, paid way too much for it like an idiot,, -84 Firebird SE 2.8L T-5, rod knocking, dammit,, -82 Firebird 350 4bolt (TBL)/TH350, not running, dammit... buy/sell/hoard/trade most any GM vehicle parts of any kind -parting out: '81 Cutlass Supreme Brougham *Paint is overrated © RSS Enterprises 2000

04-26-2002, 10:49 PM	#2
68SWB4x4 Strongman Garage Join Date: Apr 2000 Location: Salinas, CA Posts: 10,241	uhh cool? this dosnt help because those trucks already have 5 lug (expect the 70 duh) ------------------ My Truck pictures www.xframeimpala.com 68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET" 56 big window short stepside 235 dual 1 brls 64ImpalaSS 327 70 C10 LWB fleetside custom/10 350/TH350 IM me on aol SN= SHAGROLET __________________ Kalle 68 GMC Suburban 1500 4x4 SOLD 69 Pontiac Lemans 99 Silverado 4.8 5 speed ECSB [ Facebook Instagram Subscribe on YOUTUBE

04-26-2002, 11:57 PM	#4
68SWB4x4 Strongman Garage Join Date: Apr 2000 Location: Salinas, CA Posts: 10,241	hmmmmm ok you took that wrong..... what i meant was it would be alot more useful if they were the same length as 67-69 shafts.... trust me must people in california are a helluva lot more jaded than me on a similar note i recently found out 68 diff cover bolts are 7/16th length while 72 ones are 3/8ths ------------------ My Truck pictures www.xframeimpala.com 68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET" 56 big window short stepside 235 dual 1 brls 64ImpalaSS 327 70 C10 LWB fleetside custom/10 350/TH350 IM me on aol SN= SHAGROLET [This message has been edited by 68SWB4x4 (edited April 27, 2002).] __________________ Kalle 68 GMC Suburban 1500 4x4 SOLD 69 Pontiac Lemans 99 Silverado 4.8 5 speed ECSB [ Facebook Instagram Subscribe on YOUTUBE

04-27-2002, 06:29 PM	#5
kaycee Registered User Join Date: Jan 2000 Location: Wyoming USA Posts: 2,463	ttt So the only way to tell is to measure shoe/drum.What is an easier way to tell?And might I say that is some good info u all said __________________ 2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327/4L60

04-27-2002, 07:16 PM	#6
rodshop454 Registered User Join Date: Jun 2000 Location: IOWA Posts: 35	As far as the shaft size goes I've been told by alot of junk yards, I'm sorry, Auto Recylcle centers, that only 71 and 72 axles will fit in a 71-72 rear end. Not true! I've used a posi, housing and all, just pulled the axles,from a 68 truck- with 72 axles. The 67 axles are shorter and won't fit. take both axles from a 6 bolt "68-70" drum and a 5 bolt axle and there the same length and seal diam. Just a little info I've found. Junk yards around here always want more for a 71/72 posi than they do for a 68-70 one and they will work! __________________ 1972 Chevy S.B.Pro street,1996 Z/28 Convertible,1989 Camaro Convertible,1967 Olds Cutlass Convertible, 2000 Monte Carlo SS

04-26-2002, 11:21 PM	#3
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	yes, for 70, i know you arent too thrilled about it and think its useless info, but maybe someone else can use this info, and may be looking for shafts to get 5 bolt into their 70 axle and this would be a source for shafts, i know you see this as retarded and not as helpful info at all, im sorry also would be good for 4x4 trucks converting to 2wd when wanting to go to 5 bolt, etc i hope not all californians are so jaded when it comes to new info no matter how useless to them it may be, ------------------ Randy- Lincoln, IL r68c30@hotmail.com 2177353230 -71 C-10 350/CH465/3.07, assemble it, yeah right, that'll happen in this world,(not) -84 Z28 Camaro 5.0L 700R4, 3.73, beater, paid way too much for it like an idiot,, -84 Firebird SE 2.8L T-5, rod knocking, dammit,, -82 Firebird 350 4bolt (TBL)/TH350, not running, dammit... buy/sell/hoard/trade most any GM vehicle parts of any kind -parting out: '81 Cutlass Supreme Brougham *Paint is overrated © RSS Enterprises 2000 [This message has been edited by Fast68Chevy (edited April 26, 2002).]

04-29-2002, 01:49 PM	#7
ViperRed67 Registered User Join Date: Apr 2002 Location: Holley, Oregon Posts: 32	I thought I would throw in that the 67-68 coil spring rears are narrower then the leaf axles. Also the 67 axle is about 1/2 inch per side narrower then the 70 up coil type to.

04-29-2002, 10:54 PM	#8
jason7627 Registered User Join Date: Mar 2002 Location: Dallas,Texas Posts: 15	Does this mean I can swap the rears to 2.75" wide shoes by just swapping everything from the backing plates out? __________________ 72 lwb 468/th400/3.73 2/4 drop primer

04-30-2002, 12:24 AM	#9
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	i hear that it can be done to the 64-69 housings, yeah, i stil have yet to make time to do measuring on those housings and do a swap to see if it works sine i have a 78 model 2.75 brake axle here i parted the carrier out of, want to make it work on a 70-72 housing, but may be too wide, so hmm, crappy thast the 73-up shafts are same length as the 70-72 shafts, they may not be long enough to allow use of 2.75 plates and shoesa nd drum on 70-72 housings, cant see why it owuld work if housings are acutally longer in 70-72 than 73, which i believe are, i need to measure that width at the axle tube flanges directly at where the paltes bolt on to the flanges, i noticed that the 2.75 brake plates have alot more offset than the 2" ones, so hm ,tat may make up for it and it all may work fine on any housing, that would be wild.. never know..... 2.75" shoes upgrade would be great ------------------ Randy- Lincoln, IL randy@ccaonline.com 2177353230 -71 C-10 350/CH465/3.07, assemble it, yeah right, that'll happen in this world,(not) -84 Z28 Camaro 5.0L 700R4, 3.73, beater, paid way too much for it like an idiot,, -84 Firebird SE 2.8L T-5, rod knocking, dammit,, -82 Firebird 350 4bolt (TBL)/TH350, not running, dammit... buy/sell/hoard/trade most any GM vehicle parts of any kind -parting out: '81 Cutlass Supreme Brougham *Paint is overrated © RSS Enterprises 2000 [This message has been edited by Fast68Chevy (edited April 30, 2002).]

04-30-2002, 07:07 AM	#10
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,254	Last spring or the spring before da-burb stood on dry ground and handed me wrenches while I was rolling around in the mud pulling the rear axels out of a 75 or 76 4wd Blazer for my 1971 4x4 chassis. They bolted (slid?) right in and are in use to this day. __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

04-30-2002, 11:05 PM	#11
jason7627 Registered User Join Date: Mar 2002 Location: Dallas,Texas Posts: 15	Fast68Chevy, seems to me if the axles are the same length, then they should fit. Wouldn't be suprised if the backing plates are offset to make up for the extra width. I've got a '72 1/2t that I would love to put the big shoes on, heck of alot cheaper than discs. __________________ 72 lwb 468/th400/3.73 2/4 drop primer

04-30-2002, 11:53 PM	#12
68SWB4x4 Strongman Garage Join Date: Apr 2000 Location: Salinas, CA Posts: 10,241	mrein, thats wierd ive always heard the axle pad spacing is diffrent, hopefully my 14 bolt will slide right into my 68 4x4.... ------------------ My Truck pictures www.xframeimpala.com 68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET" 56 big window short stepside 235 dual 1 brls 64ImpalaSS 327 70 C10 LWB fleetside custom/10 350/TH350 IM me on aol SN= SHAGROLET __________________ Kalle 68 GMC Suburban 1500 4x4 SOLD 69 Pontiac Lemans 99 Silverado 4.8 5 speed ECSB [ Facebook Instagram Subscribe on YOUTUBE

05-01-2002, 09:00 AM	#13
ViperRed67 Registered User Join Date: Apr 2002 Location: Holley, Oregon Posts: 32	Heavy half?? Whats really funny is when I was in the Air force we used long bed 1/2 ton 4x4 trucks and blazers. They were rated as 3/4 tons. Same trucks as the street versions, just a tad more in the heavy duty department such as tranny coolers and some different frame bracing here and there. But they still ran the 12 bolt axles..



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