1971 K5 , Broke Front Axles Help, interchange. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fatblockvelle · 07-08-2015, 10:17 AM

both fronts are broke at the u-joints.... Have heard from a few people you can use newer ones? same spline??? upgrade??? there an interchange chart?
Any help would be appreciated ! Thanks.

turp mcspray · 07-08-2015, 10:24 AM

73 up will swap right in. I have always used them in mine. They use a bigger joint and are a beefier axle.

fatblockvelle · 07-08-2015, 10:30 AM

Quote:

Originally Posted by turp mcspray

73 up will swap right in. I have always used them in mine. They use a bigger joint and are a beefier axle.

nice!!! so if i have3 some out of a 79 k10 they will swap in?

fp1967 · 07-08-2015, 12:18 PM

79's would be from a 10 bolt axle and the inner axles won't fit a Dana 44. The outer stub axle will fit though. From what I have seen, they started using the bigger axle joints in mid 72. In mid 77, they started using 10 bolt axles.

fatblockvelle · 07-08-2015, 12:21 PM

Quote:

Originally Posted by fp1967

79's would be from a 10 bolt axle and the inner axles won't fit a Dana 44. The outer stub axle will fit though. From what I have seen, they started using the bigger axle joints in mid 72. In mid 77, they started using 10 bolt axles.

YES... I JUST NEED OUTERS.... SO I SHOULD BE GOOD!!!! Thanks!!!

**kwmech** · 07-08-2015, 03:18 PM

Quote:

Originally Posted by fatblockvelle

YES... I JUST NEED OUTERS.... SO I SHOULD BE GOOD!!!! Thanks!!!

Maybe not, check the u-joint size. The early 44s had a 260 u-joint that had 1-1/16 caps and the later models were 1-3/16 which is a spicer 5-760x.

From late 72 (2nd design) up through 1991 in the blazer and suburbans took the larger joint, 44 and 10 bolt

fatblockvelle · 07-08-2015, 03:22 PM

Quote:

Originally Posted by kwmech

Maybe not, check the u-joint size. The early 44s had a 260 u-joint that had 1-1/16 caps and the later models were 1-3/16 which is a spicer 5-760x.

From late 72 (2nd design) up through 1991 in the blazer and suburbans took the larger joint, 44 and 10 bolt

yes but worst case i can get adapter joint... i just have the 79 outers already.

**D.PASSMORE** · 07-08-2015, 03:37 PM

I have a set of OE 72 axles inner and stub. excellent condition... LMK

**kwmech** · 07-08-2015, 05:55 PM

Quote:

Originally Posted by fatblockvelle

yes but worst case i can get adapter joint... i just have the 79 outers already.

No such thing for an axle shaft

fatblockvelle · 07-09-2015, 08:57 AM

Quote:

Originally Posted by kwmech

No such thing for an axle shaft

What? a conversion join?

**D.PASSMORE** · 07-09-2015, 01:05 PM

This might help:
http://67-72chevytrucks.com/vboard/s...d.php?t=670179

07-08-2015, 10:17 AM	#1
fatblockvelle Registered User Join Date: Jul 2008 Location: auburn ma Posts: 216	1971 K5 , Broke Front Axles Help, interchange. both fronts are broke at the u-joints.... Have heard from a few people you can use newer ones? same spline??? upgrade??? there an interchange chart? Any help would be appreciated ! Thanks. Attached Images __________________ 1970 chevelle 1971 blazer 1972 c20 custom camper 1931 ford A coupe.

07-08-2015, 10:24 AM	#2
turp mcspray Registered User Join Date: May 2007 Location: Rapid City South Dakota Posts: 2,359	Re: 1971 K5 , Broke Front Axles Help, interchange. 73 up will swap right in. I have always used them in mine. They use a bigger joint and are a beefier axle. __________________ Turp Mcspray New life for an old 2wd, farm blazer http://67-72chevytrucks.com/vboard/s...d.php?t=505987 My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=342299

07-08-2015, 12:18 PM	#4
fp1967 Registered User Join Date: Aug 2012 Location: U.P. of Michigan Posts: 115	Re: 1971 K5 , Broke Front Axles Help, interchange. 79's would be from a 10 bolt axle and the inner axles won't fit a Dana 44. The outer stub axle will fit though. From what I have seen, they started using the bigger axle joints in mid 72. In mid 77, they started using 10 bolt axles.

07-08-2015, 03:37 PM	#8
D.PASSMORE One of the First Join Date: Jan 2000 Location: St. Augustine,FL. Posts: 4,049	Re: 1971 K5 , Broke Front Axles Help, interchange. I have a set of OE 72 axles inner and stub. excellent condition... LMK __________________ DAVID PASSMORE ST AUGUSTINE ,FL ZIP 32084 '71 SWB K/10 CUSTOM DELUXE (Chili) '72 BLAZER K/5 Muscle Truck (Mule) '72 LWB K/20 CHEYENNE (Blackie)

07-09-2015, 01:05 PM	#11
D.PASSMORE One of the First Join Date: Jan 2000 Location: St. Augustine,FL. Posts: 4,049	Re: 1971 K5 , Broke Front Axles Help, interchange. This might help: http://67-72chevytrucks.com/vboard/s...d.php?t=670179 __________________ DAVID PASSMORE ST AUGUSTINE ,FL ZIP 32084 '71 SWB K/10 CUSTOM DELUXE (Chili) '72 BLAZER K/5 Muscle Truck (Mule) '72 LWB K/20 CHEYENNE (Blackie)



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