Made a dumb mistake today - The 1947 - Present Chevrolet & GMC Truck Message Board Network

blfuller123 · 09-27-2011, 04:53 PM

I had been looking for another rear end for my truck to convert it from 6 to 5 lug. I already have some rims that I want to use so I started measuring how I wanted the wheels and tires to sit in the fenderwells. I found a guy selling a late model z28 rear end with posi and disc brakes that just happened to be the width I was looking for. I got the rear end home and started to stick my rims on it and they dont fit. I didnt think to check the bolt pattern. I just assumed that chevy 5 lug were all the same. My rims are 5x4.75 and these are 5x4.5. UGH!!!

fastwillie 696969 · 09-27-2011, 04:58 PM

wheels spacers

*project 67 sub* · 09-27-2011, 05:11 PM

actually your wheels should be 5x5 and the rear end should be 5x4.75

but either way, adapters or getting the axles and rotors redrilled to the pattern you need will work

blfuller123 · 09-27-2011, 05:17 PM

The wheels are 5x4.75 and the new rear end is 5x4.5. I cant do adapters because they will widen the rear end too much. I think I am going to just have the axles redrilled.

Mayo · 09-27-2011, 05:39 PM

Quote:

Originally Posted by blfuller123

The wheels are 5x4.75 and the new rear end is 5x4.5. I cant do adapters because they will widen the rear end too much. I think I am going to just have the axles redrilled.

All older Chevy trucks are 5x5. Most GM cars have the 5x4.75, except I know the 91 and newer Caprices and Impalas are 5x5 also.

big mike71 · 09-27-2011, 05:40 PM

Just buy new rotors.

71swb4x4 · 09-27-2011, 06:06 PM

I agree with the others, truck 5 lug wheels are 5x5, Z28 rear ends are 5x4.75.

*project 67 sub* · 09-27-2011, 06:40 PM

here you go.... since a lot of people dont know how to measure bolt patterns properly here is a pic of how to do it

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blfuller123 · 09-27-2011, 07:05 PM

That makes sense. Either way I still have to redrill the axles or change out the axles.

**Dieselwrencher** · 09-27-2011, 08:28 PM

5x4.5 is ford and mopar usually. I agree, redrill and save the purchase.

**LockDoc** · 09-27-2011, 08:55 PM

-
To be safe take a wheel with you when you take the axles to be drilled and let them measure it...

LockDoc

Zoomin · 09-27-2011, 08:59 PM

Or sell the wheels and get the ones that will fit.

stsalvage · 09-28-2011, 12:54 AM

we have all learned that one Car's different But Vans trucks suburbans panels and i've even seen some caddy's use the big bolt pattern

crazy longhorn · 09-28-2011, 01:34 AM

Quote:

Originally Posted by LockDoc

-
To be safe take a wheel with you when you take the axles to be drilled and let them measure it...

LockDoc

2nd all of that...redrill. crazyL

OJ1988 · 09-28-2011, 07:25 AM

Not to mention that z28 rear end is a 7.5" 10 bolt. These are very week rears and I would not trucst one in a truck, if you plan to do more than just cruise.

MARKDTN · 09-28-2011, 07:37 AM

Quote:

Originally Posted by Mayo

All older Chevy trucks are 5x5. Most GM cars have the 5x4.75, except I know the 91 and newer Caprices and Impalas are 5x5 also.

Actually Caprices etc. bounced around on size from '71 up, some years had both sizes. I have had a '72 Grandville, '77 Bonneville, and '96 Caprice with the 5x5 and I had an '86 and an '88 Caprice with the 5x4.75. In the words of Shawn Spencer from the TV show Psych "I've seen it both ways".

81ShrtBox · 09-28-2011, 07:48 AM

Quote:

Originally Posted by project 67 sub

actually your wheels should be 5x5 and the rear end should be 5x4.75

but either way, adapters or getting the axles and rotors redrilled to the pattern you need will work

I just ordered a set of wheel adapters for my neighbor yesterday. Chevy S10 with 5x4.75 to 5x5

just make sure you get the reach nuts to go with it and you wont have a problem. "IF" you have enough room at the fender...you might have to roll the fenders

Scott Webster · 09-28-2011, 11:21 AM

I've been measuring the 5 lugs wrong! I always take a rim though. I've screwed up enough times with centers being too small or the pattern being smaller or bigger that I always take a rim.

09-27-2011, 04:53 PM	#1
blfuller123 Registered User Join Date: Jul 2011 Location: Lake Jackson, TX Posts: 486	Made a dumb mistake today I had been looking for another rear end for my truck to convert it from 6 to 5 lug. I already have some rims that I want to use so I started measuring how I wanted the wheels and tires to sit in the fenderwells. I found a guy selling a late model z28 rear end with posi and disc brakes that just happened to be the width I was looking for. I got the rear end home and started to stick my rims on it and they dont fit. I didnt think to check the bolt pattern. I just assumed that chevy 5 lug were all the same. My rims are 5x4.75 and these are 5x4.5. UGH!!!

09-27-2011, 04:58 PM	#2
fastwillie 696969 ~Rest In Peace~ Join Date: May 2005 Location: CALIFORNIA NOR CAL Posts: 9,707	Re: Made a dumb mistake today wheels spacers __________________ is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex

09-27-2011, 05:11 PM	#3
project 67 sub Account Suspended Join Date: Mar 2007 Location: san bernardino ca. everywhere Posts: 3,938	Re: Made a dumb mistake today actually your wheels should be 5x5 and the rear end should be 5x4.75 but either way, adapters or getting the axles and rotors redrilled to the pattern you need will work

09-27-2011, 05:17 PM	#4
blfuller123 Registered User Join Date: Jul 2011 Location: Lake Jackson, TX Posts: 486	Re: Made a dumb mistake today The wheels are 5x4.75 and the new rear end is 5x4.5. I cant do adapters because they will widen the rear end too much. I think I am going to just have the axles redrilled.

09-27-2011, 05:40 PM	#6
big mike71 Registered User Join Date: Mar 2009 Location: independence mo Posts: 2,111	Re: Made a dumb mistake today Just buy new rotors. __________________ I'm not as good as I once was, But I'm as good once as I ever was.

09-27-2011, 06:06 PM	#7
71swb4x4 Senior Member Join Date: Nov 2003 Location: Brookings, SD Posts: 10,497	Re: Made a dumb mistake today I agree with the others, truck 5 lug wheels are 5x5, Z28 rear ends are 5x4.75. __________________ Some people are like slinkies, they aren't good for anything, but you can't help but smile when you see one tumble down the stairs.

09-27-2011, 06:40 PM	#8
project 67 sub Account Suspended Join Date: Mar 2007 Location: san bernardino ca. everywhere Posts: 3,938	Re: Made a dumb mistake today here you go.... since a lot of people dont know how to measure bolt patterns properly here is a pic of how to do it

09-27-2011, 07:05 PM	#9
blfuller123 Registered User Join Date: Jul 2011 Location: Lake Jackson, TX Posts: 486	Re: Made a dumb mistake today That makes sense. Either way I still have to redrill the axles or change out the axles.

09-27-2011, 08:28 PM	#10
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,139	Re: Made a dumb mistake today 5x4.5 is ford and mopar usually. I agree, redrill and save the purchase. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

09-27-2011, 08:55 PM	#11
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,633	Re: Made a dumb mistake today - To be safe take a wheel with you when you take the axles to be drilled and let them measure it... LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

09-27-2011, 08:59 PM	#12
Zoomin Man of Mini-Talents Join Date: Sep 2009 Location: Oklahoma City, OK Posts: 4,295	Re: Made a dumb mistake today Or sell the wheels and get the ones that will fit. __________________ Steve Project - Ruth 66 Skylark Project - Lola 60 Biscayne Project - Iron Ox 54 GMC 100 Project - Darth 69 Camaro

09-28-2011, 12:54 AM	#13
stsalvage Scrapper 1 Join Date: Jan 2007 Location: Riverside Calif Posts: 1,649	Re: Made a dumb mistake today we have all learned that one Car's different But Vans trucks suburbans panels and i've even seen some caddy's use the big bolt pattern

09-28-2011, 07:25 AM	#15
OJ1988 Just a car guy Join Date: Feb 2006 Location: New Washington, IN Posts: 991	Re: Made a dumb mistake today Not to mention that z28 rear end is a 7.5" 10 bolt. These are very week rears and I would not trucst one in a truck, if you plan to do more than just cruise. __________________ 1955 belair Blown Pro Street cruiser 1971 Camaro Pro Touring 1973 Vega Drag Car 1970 C20 tow rig

09-28-2011, 11:21 AM	#18
Scott Webster Sheetmetal Psycho Join Date: May 2005 Location: athens PA Posts: 515	Re: Made a dumb mistake today I've been measuring the 5 lugs wrong! I always take a rim though. I've screwed up enough times with centers being too small or the pattern being smaller or bigger that I always take a rim. __________________ I didn't say you were stupid, but I was thinking it... I need a check up from the neck up! Project "Rigginstine's Monster" 1971 C-10 longbed 355/4spd Future mods: 67 front clip Webby's Rigginations - where everything has potential!



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