5 Lug Axel Swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ale8oneboy · 10-15-2004, 10:56 AM

I know, I've read this on here before. But I can't remember. Can someone tell me how to use 71' 5 lug axels in a 67' rear again and what parts do I need.

Thanks

roj2323 · 10-15-2004, 11:02 AM

you can't. the 71 rear end is 1.5 inches longer than the 67 rear end. you have to get your 67 axles re drilled for the 5 lug pattern or get replacement axles. i think someone said summit or one of the board dealers has them in stock but i'm not really sure. as far as re drilling the 67 axles, any reputable performance shop can tell whare you can have it done or they might offer the service themselves.
ondrew

luckydog · 10-15-2004, 11:05 AM

How about the 70 rearend?

1971 Cheyenne · 10-15-2004, 11:13 AM

in about mid '70, they changed over to the wide axles. If you have an early 70 rear end, you either need spacers, or shortened axles to put 71-72 axles in it. If you have a late 70 rear end, just pop the 71-72 axels in and you are good to go! no mods necessary.

ale8oneboy · 10-15-2004, 11:51 AM

I had read something once before about using the backing plates, drums, shoes and break hardware off a 73+ truck to make up for the difference. Anyone know anything about this ?

Thanks

kaycee · 10-15-2004, 12:25 PM

I made a 3/4" spacer plate on each side of my rearend to work,I took and made a template out of cardboard.Then some 3/4"plate and them to fit inbetween the backing plate and rearend housing.I had access to plasma torch and such so it didn't cost me $$.You might try the template and take it to the machine shop and see how much it would be versus axle machining

**lolife99** · 10-15-2004, 12:58 PM

There is a new set of 5-lug "conversion axles" on the parts board.

HuggerCST · 10-15-2004, 11:35 PM

When converting a late '70 rear to '72 5 lug axles, will I have to change anything other that the axles/drums? Shoes? Wheel cylinders?

Longhorn Man · 10-16-2004, 12:04 AM

Quote:

Originally Posted by HuggerCST

When converting a late '70 rear to '72 5 lug axles, will I have to change anything other that the axles/drums? Shoes? Wheel cylinders?

Yeah...you'll need new wheels too.

And oil...you'll need new oil too, I'm not even that cheap.

no, you won't need anything, althoguht some new seals would be a good idea, other than that, slap them in, put on the C-clips, bolt on cover with some black goo on it, and fill it up, install 5 lug drums, wheels and drop the jack.

10-15-2004, 10:56 AM	#1
ale8oneboy Registered User Join Date: Jun 2003 Location: Pike County, KY Posts: 89	5 Lug Axel Swap I know, I've read this on here before. But I can't remember. Can someone tell me how to use 71' 5 lug axels in a 67' rear again and what parts do I need. Thanks __________________ MEMBER OF THE BUCKET SEAT CLUB (REAL BUCKETS) "Color Me Gone" - Two Lanes of Blacktop

10-15-2004, 11:05 AM	#3
luckydog < Fav Place on Earth! Join Date: Sep 2004 Location: South West Michigan Posts: 307	How about the 70 rearend? __________________ Horsepower is how FAST you hit the wall, torque is how HARD

10-15-2004, 11:13 AM	#4
1971 Cheyenne Registered User Join Date: Nov 2002 Location: Bellevue, WA Posts: 1,480	in about mid '70, they changed over to the wide axles. If you have an early 70 rear end, you either need spacers, or shortened axles to put 71-72 axles in it. If you have a late 70 rear end, just pop the 71-72 axels in and you are good to go! no mods necessary. __________________ Brian Pal 1971 Cheyenne 10 454/th400-Undergoing a full frame off resto. 1972 Chevy short/step 2wd, 350/th350 1983 M1009 CUCV Military K5 Blazer 1981 Dodge 1 ton 4x4 dually flatbed

10-15-2004, 11:51 AM	#5
ale8oneboy Registered User Join Date: Jun 2003 Location: Pike County, KY Posts: 89	I had read something once before about using the backing plates, drums, shoes and break hardware off a 73+ truck to make up for the difference. Anyone know anything about this ? Thanks __________________ MEMBER OF THE BUCKET SEAT CLUB (REAL BUCKETS) "Color Me Gone" - Two Lanes of Blacktop

10-15-2004, 12:25 PM	#6
kaycee Registered User Join Date: Jan 2000 Location: Wyoming USA Posts: 2,446	I made a 3/4" spacer plate on each side of my rearend to work,I took and made a template out of cardboard.Then some 3/4"plate and them to fit inbetween the backing plate and rearend housing.I had access to plasma torch and such so it didn't cost me $$.You might try the template and take it to the machine shop and see how much it would be versus axle machining __________________ 2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327

10-15-2004, 11:02 AM	#2
roj2323 Senior Member Join Date: Mar 2004 Location: Somewhere Posts: 985	you can't. the 71 rear end is 1.5 inches longer than the 67 rear end. you have to get your 67 axles re drilled for the 5 lug pattern or get replacement axles. i think someone said summit or one of the board dealers has them in stock but i'm not really sure. as far as re drilling the 67 axles, any reputable performance shop can tell whare you can have it done or they might offer the service themselves. ondrew

10-15-2004, 12:58 PM	#7
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	There is a new set of 5-lug "conversion axles" on the parts board. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

10-15-2004, 11:35 PM	#8
HuggerCST Registered User Join Date: Jul 2001 Location: North Louisiana Posts: 4,501	When converting a late '70 rear to '72 5 lug axles, will I have to change anything other that the axles/drums? Shoes? Wheel cylinders? __________________ Wynne 70 CST short fleet Hugger orange & white, 350/350, ps, pb, air, tilt, tach/vac/speedwarning, original buckets, AM/FM, oak bed floor, shoulder belts, 3.5"/5.5" drop, 20" American Racing VN425s. Build thread 53 Chevy shortbed 69 Camaro Click here to subscribe Chevy GMC International Truck Club Louisiana Charter Member http://www.louisianaclassictruckclub.com

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