4 3/4 lug pattern...can we? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CG · 07-04-2007, 01:40 PM

Is there a way to run these on our trucks? Anybody make front rotors drilled to that pattern that will swap out with our current 5 on 5's ? Does anyone make rear axels drilled with that pattern we can swap out our six or five lug axels with?

cdowns · 07-04-2007, 02:56 PM

there are wheel adaptorsa out there for changing bolt patterns they usually add about 1 inch of width per wheel// i see them on ebay some times

CG · 07-04-2007, 08:36 PM

That extra inch can really mess you up if you're lowering your ride.

SCOTI · 07-04-2007, 08:52 PM

Most machine shops can redrill the 5x5 to 5x4.75 bolt pattern on your axles & rotors.

Lil-Joe · 07-04-2007, 09:15 PM

...Yea, I'm in the same boat....I was given aprox. $1500.00 worth of Rims & Tires for my truck, 29x18.5x15 Mickeys on 15x14 rims (5 on 4.5" b.p.) for the rear, set up for a 9" rear and 27x7x15 M.T.'s (5 on 4.75" b.p.) for the front ......my thing is ...Being some rims are "Hub-Centric", and others are "Lug-Centric"....will a machine shop turn down the hub size if needed?

SCOTI · 07-04-2007, 09:18 PM

Quote:

Originally Posted by Lil-Joe

...will a machine shop turn down the hub size if needed?

Yes, if they're set up for drilling rotors/hubs, they can turn the hub down as well.

*Shane* · 07-04-2007, 11:17 PM

actually the turning of the hub will require a lathe and the re-drilling of the bolt pattern will more than likely be done on a knee mill ... two different setups. but any competent machine shop will have both pieces of equipment needed to do this for ya.

CG · 07-05-2007, 12:05 AM

Well I had a line on a set of wheels that were a very good price. But it sounds like the cost to make a truck work with these is going to be to prohibitive. Thanks for the responses guys.

**67 cst swb** · 07-05-2007, 01:03 AM

Also,you can...
find a 71-72 or 73-74 Chevy van... YES Chevy VAN... they had 5 on 4-3/4 bp from the factory. Only 71-74. 75 they went to the 5 on 5. (This is what kind of info 20 years in Auto Parts gets you) All you need is the spindle. ball joints and tie rod ends are the same as pick-up. for which ever year respectively. 71-72 same as 71-72, or 73-74 uses 73-later stuff...
here's the cool part. the caliper, rotor and pads are 70-77 camaro, so easy to find replacements parts for. Also, some aftermarket companies even sell slotted performance rotors and replacement dual piston calipers for 70-77 camaro...
Here's the only possible negatives... FIRST, finding a donor 71-74 Chevy Van... Second, the rotor diameter is a bit smaller, thickness is the same. So your unfortunately not going to a larger diameter rotor, but a smaller... I'm not sure but our trucks are 11" (?) and these Van (camaro) are 10-1/2" (?) you might want to double check that...
But, I luckily have 2 pairs of these spindles. one set is 71-72, other is 73-74 I will be using one or the other on either this current project or the next project. All this just to run corvette style rally's.
Any quality machine shop can redrill your rear axles to 5 on 4-3/4 bp, then just go buy rear drums for the 71-72 chevy van, the shoes and hardware is all the same as our pick-ups
PM me with any questions...

CG · 07-05-2007, 09:44 AM

Hey thanks for that very good info. Im going to have to save that. Late last nite someone offered the guy more money for the wheels than I did. Now I have to decide if I want to up the anti (sp?).

**PICKMUP** · 07-05-2007, 03:18 PM

That is interesting info on the van spindles, but I think it is going the wrong direction for better brakes and lowering our trucks.
You have to get rare spindles. They do not lower the truck...and it takes expensive aftermarket HP brakes to make it stop. A set of 5on5 wheels are looking better to me. Just mho.

**67 cst swb** · 07-05-2007, 03:36 PM

Quote:

Originally Posted by PICKMUP

That is interesting info on the van spindles, but I think it is going the wrong direction for better brakes and lowering our trucks.
You have to get rare spindles. They do not lower the truck...and it takes expensive aftermarket HP brakes to make it stop. A set of 5on5 wheels are looking better to me. Just mho.

I do agree...
the truck I'm using mine on will be a weekend cruiser, no load, stock engine, so I guess my thoughts were the camaro disc will still be better than the '67-'68 factory drum brakes, I'm taking off.
I did list the brake size as a negative...

07-04-2007, 01:40 PM	#1
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 20,035	4 3/4 lug pattern...can we? Is there a way to run these on our trucks? Anybody make front rotors drilled to that pattern that will swap out with our current 5 on 5's ? Does anyone make rear axels drilled with that pattern we can swap out our six or five lug axels with? Last edited by CG; 07-04-2007 at 01:41 PM.

07-04-2007, 02:56 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: 4 3/4 lug pattern...can we? there are wheel adaptorsa out there for changing bolt patterns they usually add about 1 inch of width per wheel// i see them on ebay some times __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

07-04-2007, 08:36 PM	#3
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 20,035	Re: 4 3/4 lug pattern...can we? That extra inch can really mess you up if you're lowering your ride.

07-04-2007, 08:52 PM	#4
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,071	Re: 4 3/4 lug pattern...can we? Most machine shops can redrill the 5x5 to 5x4.75 bolt pattern on your axles & rotors. __________________ 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.*

07-04-2007, 09:15 PM	#5
Lil-Joe Registered User Join Date: Jan 2007 Location: Lackawanna, New York Posts: 30	Re: 4 3/4 lug pattern...can we? ...Yea, I'm in the same boat....I was given aprox. $1500.00 worth of Rims & Tires for my truck, 29x18.5x15 Mickeys on 15x14 rims (5 on 4.5" b.p.) for the rear, set up for a 9" rear and 27x7x15 M.T.'s (5 on 4.75" b.p.) for the front ......my thing is ...Being some rims are "Hub-Centric", and others are "Lug-Centric"....will a machine shop turn down the hub size if needed? __________________ 1969 chevy C-20 (soon to be shortened & Tubbed C-10) 1990 Astro AWD 3" Lift w/Laredo tires 10 spkr. 800w system and DVD player for the long trips (got it for free) and been trying very hard to "De Socker-Mom it !

07-04-2007, 11:17 PM	#7
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Re: 4 3/4 lug pattern...can we? actually the turning of the hub will require a lathe and the re-drilling of the bolt pattern will more than likely be done on a knee mill ... two different setups. but any competent machine shop will have both pieces of equipment needed to do this for ya.

07-05-2007, 12:05 AM	#8
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 20,035	Re: 4 3/4 lug pattern...can we? Well I had a line on a set of wheels that were a very good price. But it sounds like the cost to make a truck work with these is going to be to prohibitive. Thanks for the responses guys.

07-05-2007, 01:03 AM	#9
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Re: 4 3/4 lug pattern...can we? Also,you can... find a 71-72 or 73-74 Chevy van... YES Chevy VAN... they had 5 on 4-3/4 bp from the factory. Only 71-74. 75 they went to the 5 on 5. (This is what kind of info 20 years in Auto Parts gets you) All you need is the spindle. ball joints and tie rod ends are the same as pick-up. for which ever year respectively. 71-72 same as 71-72, or 73-74 uses 73-later stuff... here's the cool part. the caliper, rotor and pads are 70-77 camaro, so easy to find replacements parts for. Also, some aftermarket companies even sell slotted performance rotors and replacement dual piston calipers for 70-77 camaro... Here's the only possible negatives... FIRST, finding a donor 71-74 Chevy Van... Second, the rotor diameter is a bit smaller, thickness is the same. So your unfortunately not going to a larger diameter rotor, but a smaller... I'm not sure but our trucks are 11" (?) and these Van (camaro) are 10-1/2" (?) you might want to double check that... But, I luckily have 2 pairs of these spindles. one set is 71-72, other is 73-74 I will be using one or the other on either this current project or the next project. All this just to run corvette style rally's. Any quality machine shop can redrill your rear axles to 5 on 4-3/4 bp, then just go buy rear drums for the 71-72 chevy van, the shoes and hardware is all the same as our pick-ups PM me with any questions... __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White Last edited by 67 cst swb; 07-05-2007 at 01:09 AM.

07-05-2007, 09:44 AM	#10
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 20,035	Re: 4 3/4 lug pattern...can we? Hey thanks for that very good info. Im going to have to save that. Late last nite someone offered the guy more money for the wheels than I did. Now I have to decide if I want to up the anti (sp?).

07-05-2007, 03:18 PM	#11
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,158	Re: 4 3/4 lug pattern...can we? That is interesting info on the van spindles, but I think it is going the wrong direction for better brakes and lowering our trucks. You have to get rare spindles. They do not lower the truck...and it takes expensive aftermarket HP brakes to make it stop. A set of 5on5 wheels are looking better to me. Just mho.



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