Rear Axle interchange - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Blue68 · 06-19-2002, 02:33 PM

I noticed a posting about going to five bolt on the rear. Let's not get into 6 bolt selection cause I've yet to see a Torque-Thrust with a 6 bolt pattern.

My question is, what axles are interchangable on our trucks? Can you go with newer like the mid 70's? Or is it just 71-72 12 bolts?

I've heard of guys doing something with a mid 60's truck by swapping the axles.

I like the 5 spoke wheels and already run 5 bolt on the front. Just trying to do a poor mans swap (eventually).

And I'm talking just the axles, not the entire rearend and housing.

Low69CST · 06-19-2002, 02:49 PM

A few people on the board have a whole list of different parts. Using certain year axles, different year brake drum, another year brake shoes to make it all fit, I personally think it is more covenient and safer to change the entire housing, Most all rear ends in these trucks have 3.73's in them anyway.

Blue68 · 06-19-2002, 02:51 PM

Only, last time I looked to pick one up they wanted $300 bucks for it. Non-posi to boot.

Low69CST · 06-19-2002, 03:37 PM

I got a housing, pair of axles, set of 3.73's, 50 bucks if you come pick it up. Your old 6 lug carrier and gears should work if you want to transfer them.

Low69CST · 06-19-2002, 03:38 PM

Its also got the brake drums i'm pretty sure, has to be built though

crew70 · 06-19-2002, 03:40 PM

you can change any thing with a torch and a welder..lol

Low69CST · 06-19-2002, 03:47 PM

You could also check into getting axles made for your truck. Or having your axles welded and redrilled for a 5 on 5. You could summit and ask them about axles. I know "race" axles are about 250 a pair, they may have a cheaper "street" quality that would work just as well.

SCOTI · 06-19-2002, 06:07 PM

They do make a Torq-Thrust in a 6-lug. I had my original axles re-drilled on my 67 initially & just bought some replacement(better quality)Moser axles for my beater 68. TIP: if you do decide to go w/Mosers, send them an original axle & spider gear so they can machine the splines correctly the first time & duck tape the spider gear to the axle(use an entire role if needed to keep the two from coming apart!!)so they don't lose the gear. . . oh no wait . . . thats right . . . I just remembered, I must have forgotten to put the gear on the axle . . . I just put the tape on the axle for the hell of it. Hmmmm, do I sound bitter?

06-19-2002, 02:33 PM	#1
Blue68 Registered User Join Date: Apr 2000 Location: Frisco, Tx, USA Posts: 606	Rear Axle interchange I noticed a posting about going to five bolt on the rear. Let's not get into 6 bolt selection cause I've yet to see a Torque-Thrust with a 6 bolt pattern. My question is, what axles are interchangable on our trucks? Can you go with newer like the mid 70's? Or is it just 71-72 12 bolts? I've heard of guys doing something with a mid 60's truck by swapping the axles. I like the 5 spoke wheels and already run 5 bolt on the front. Just trying to do a poor mans swap (eventually). And I'm talking just the axles, not the entire rearend and housing. __________________ http://home.comcast.net/~r.landrum/w...tos.html-.html '68 C-10 LWB, '98 Z-71 350 w/accessories (Serpentine), Edelbrock Performer, Edelbrock 1405 (600cfm) carb, GM HEI, CompCam Extreme 4x4 roller cam, Thorley Headers, Carter Electric Fuel Pump, Vintage Air, 700r4, 3.73, disc brakes and power steering upgrades.

06-19-2002, 02:49 PM	#2
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	A few people on the board have a whole list of different parts. Using certain year axles, different year brake drum, another year brake shoes to make it all fit, I personally think it is more covenient and safer to change the entire housing, Most all rear ends in these trucks have 3.73's in them anyway. __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

06-19-2002, 02:51 PM	#3
Blue68 Registered User Join Date: Apr 2000 Location: Frisco, Tx, USA Posts: 606	Only, last time I looked to pick one up they wanted $300 bucks for it. Non-posi to boot. __________________ http://home.comcast.net/~r.landrum/w...tos.html-.html '68 C-10 LWB, '98 Z-71 350 w/accessories (Serpentine), Edelbrock Performer, Edelbrock 1405 (600cfm) carb, GM HEI, CompCam Extreme 4x4 roller cam, Thorley Headers, Carter Electric Fuel Pump, Vintage Air, 700r4, 3.73, disc brakes and power steering upgrades.

06-19-2002, 03:37 PM	#4
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	I got a housing, pair of axles, set of 3.73's, 50 bucks if you come pick it up. Your old 6 lug carrier and gears should work if you want to transfer them. __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

06-19-2002, 03:38 PM	#5
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	Its also got the brake drums i'm pretty sure, has to be built though __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

06-19-2002, 03:40 PM	#6
crew70 Registered User Join Date: Jan 2002 Location: shafer,mn,usa Posts: 316	you can change any thing with a torch and a welder..lol

06-19-2002, 03:47 PM	#7
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	You could also check into getting axles made for your truck. Or having your axles welded and redrilled for a 5 on 5. You could summit and ask them about axles. I know "race" axles are about 250 a pair, they may have a cheaper "street" quality that would work just as well. __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

06-19-2002, 06:07 PM	#8
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,064	They do make a Torq-Thrust in a 6-lug. I had my original axles re-drilled on my 67 initially & just bought some replacement(better quality)Moser axles for my beater 68. TIP: if you do decide to go w/Mosers, send them an original axle & spider gear so they can machine the splines correctly the first time & duck tape the spider gear to the axle(use an entire role if needed to keep the two from coming apart!!)so they don't lose the gear. . . oh no wait . . . thats right . . . I just remembered, I must have forgotten to put the gear on the axle . . . I just put the tape on the axle for the hell of it. Hmmmm, do I sound bitter? __________________ 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.*

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