Rear End Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Bablurp · 03-07-2018, 02:09 AM

Newbie here. I recently acquired a 72 c20 and I will modernizing the drivetrain and doing a full restomod. It’ll be a 5.3l mated to a 4l60e. My question is if I would be able to swap in a 2008 Escalade rear end with 3.42 gears and 6 lug in place of the 8 lug rear end. This would allow me to use modern stock Chevy wheels and have rear discs. The front would obviously be swapped to 6 lugs as well.

Thanks!

bbrriiaann1973 · 03-07-2018, 03:36 AM

I am sure the shock location would match up. But you could give it a try

**clay68c10** · 03-07-2018, 08:08 AM

Time to do some measurements, I like comparing the width at the wheel mounting surface. If it’s within an inch or 2, you are probably good to go.
You will probably have to move around spring perches and shock mounts.

**kwmech** · 03-07-2018, 11:51 AM

I would focus my attention on a 14 bolt semi-float. Stronger than a 12 bolt

demian5 · 03-07-2018, 12:10 PM

Yes you can put anything in there you want. Just get the spring perches installed correctly with the right pinion angle. You will more than likely need a new rear yoke for driveshaft but thats a given you will have the driveshaft redone anyways, along with redo shock mounts on rear end or truck, then the master/combo valve selection.

It can be done, but its not a simple deal. You may want to look into just swapping the axles to 5 lug and new discs.

Its only $$ right?

Bablurp · 03-07-2018, 02:35 PM

I may end up going the axle swap route and doing 5 lug. I was originally intending on using late model 6 lug wheels as I’ve got 2 sets that I’ve yet to sell off.

demian5 · 03-07-2018, 02:36 PM

Quote:

Originally Posted by Bablurp

I was originally intending on using late model 6 lug wheels as I’ve got 2 sets that I’ve yet to sell off.

Yeah if it was a 70 or earlier that would be cool, but I'd try and keep it 5 lug.

Bablurp · 03-09-2018, 01:28 PM

What rear end is this?

**Stocker** · 03-09-2018, 02:05 PM

Pretty sure that's a Dana 44.

Bablurp · 03-09-2018, 02:11 PM

I'm going to assume this isn't a stock Rear end. The build sheet has it with 4.10 gears and I'm just now shopping around for rear end disc conversion as well as wheels. What would be my options on rear disc conversion?

demian5 · 03-09-2018, 02:13 PM

Post pics of the SPID and Build Sheet

Bablurp · 03-09-2018, 02:21 PM

Here it is.

outfield · 03-09-2018, 03:39 PM

That's a Dana 60 axle

Bablurp · 03-09-2018, 04:08 PM

Was this OEM or aftermarket? I apologize for all the questions. Just want to cover all my bases before I throw money into it.

Bigdav160 · 03-09-2018, 04:18 PM

That Dana 60 is OE and a little bit of a surprise as most Chevrolet's got the Eaton axle.

I would keep it. It's way stronger and has more aftermarket support than the AAM 8.5 axle in the Escalade.

Bablurp · 03-10-2018, 09:19 AM

Thanks everyone! I’ll be keeping this rear end and converting over to disc after I refurbish it

03-07-2018, 02:09 AM	#1
Bablurp Registered User Join Date: Mar 2018 Location: Delano, CA Posts: 7	Rear End Question Newbie here. I recently acquired a 72 c20 and I will modernizing the drivetrain and doing a full restomod. It’ll be a 5.3l mated to a 4l60e. My question is if I would be able to swap in a 2008 Escalade rear end with 3.42 gears and 6 lug in place of the 8 lug rear end. This would allow me to use modern stock Chevy wheels and have rear discs. The front would obviously be swapped to 6 lugs as well. Thanks!

03-07-2018, 03:36 AM	#2
bbrriiaann1973 Registered User Join Date: Jun 2015 Location: Phoenix Az Posts: 211	Re: Rear End Question I am sure the shock location would match up. But you could give it a try __________________ Brian Ritter

03-07-2018, 08:08 AM	#3
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,882	Re: Rear End Question Time to do some measurements, I like comparing the width at the wheel mounting surface. If it’s within an inch or 2, you are probably good to go. You will probably have to move around spring perches and shock mounts. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

03-07-2018, 11:51 AM	#4
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,388	Re: Rear End Question I would focus my attention on a 14 bolt semi-float. Stronger than a 12 bolt

03-07-2018, 12:10 PM	#5
demian5 Registered User Join Date: Aug 2016 Location: Lake Forest, CA Posts: 2,177	Re: Rear End Question Yes you can put anything in there you want. Just get the spring perches installed correctly with the right pinion angle. You will more than likely need a new rear yoke for driveshaft but thats a given you will have the driveshaft redone anyways, along with redo shock mounts on rear end or truck, then the master/combo valve selection. It can be done, but its not a simple deal. You may want to look into just swapping the axles to 5 lug and new discs. Its only $$ right? __________________ "Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC

03-07-2018, 02:35 PM	#6
Bablurp Registered User Join Date: Mar 2018 Location: Delano, CA Posts: 7	Re: Rear End Question I may end up going the axle swap route and doing 5 lug. I was originally intending on using late model 6 lug wheels as I’ve got 2 sets that I’ve yet to sell off.

03-09-2018, 01:28 PM	#8
Bablurp Registered User Join Date: Mar 2018 Location: Delano, CA Posts: 7	Re: Rear End Question What rear end is this? Attached Images

03-09-2018, 02:05 PM	#9
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,495	Re: Rear End Question Pretty sure that's a Dana 44. __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay

03-09-2018, 02:11 PM	#10
Bablurp Registered User Join Date: Mar 2018 Location: Delano, CA Posts: 7	Re: Rear End Question I'm going to assume this isn't a stock Rear end. The build sheet has it with 4.10 gears and I'm just now shopping around for rear end disc conversion as well as wheels. What would be my options on rear disc conversion?

03-09-2018, 02:13 PM	#11
demian5 Registered User Join Date: Aug 2016 Location: Lake Forest, CA Posts: 2,177	Re: Rear End Question Post pics of the SPID and Build Sheet __________________ "Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC

03-09-2018, 02:21 PM	#12
Bablurp Registered User Join Date: Mar 2018 Location: Delano, CA Posts: 7	Re: Rear End Question Here it is. Attached Images

03-09-2018, 03:39 PM	#13
outfield Registered User Join Date: Apr 2016 Location: Portland, Or Posts: 387	Re: Rear End Question That's a Dana 60 axle

03-09-2018, 04:08 PM	#14
Bablurp Registered User Join Date: Mar 2018 Location: Delano, CA Posts: 7	Re: Rear End Question Was this OEM or aftermarket? I apologize for all the questions. Just want to cover all my bases before I throw money into it.

03-09-2018, 04:18 PM	#15
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: Rear End Question That Dana 60 is OE and a little bit of a surprise as most Chevrolet's got the Eaton axle. I would keep it. It's way stronger and has more aftermarket support than the AAM 8.5 axle in the Escalade. __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe

03-10-2018, 09:19 AM	#16
Bablurp Registered User Join Date: Mar 2018 Location: Delano, CA Posts: 7	Re: Rear End Question Thanks everyone! I’ll be keeping this rear end and converting over to disc after I refurbish it



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