McGaughy 2.5 drop spindles rub lower ball joint - The 1947 - Present Chevrolet & GMC Truck Message Board Network

82Cecil · 01-16-2009, 10:47 PM

Using stock ball joints

rims are 15"

I'm wondering if I did something wrong because, no where does it say I can't use a 15" rim.

boatpuller · 01-16-2009, 11:29 PM

that's the same place my 3 inch belltech spindle's rubbed with stock 15 inch rally's.i went to 17's.

heavychevy79 · 01-17-2009, 12:29 AM

Those arn't stock wheels for that year truck.
Steel wheels will fit.

boatpuller · 01-17-2009, 11:39 AM

Quote:

Originally Posted by heavychevy79

Those arn't stock wheels for that year truck.
Steel wheels will fit.

that isn't alway's the case.mine rubbed,and several other member's did also.some have not however.like n2trux posted,it can depend on backspace and rim width.if you search back thru some older post's,you'll find there's really no pattern to rub issue with stock rim's.

82Cecil · 01-17-2009, 12:18 PM

I measured back spacing on the non original rim I'm trying to use, but to be sure I did it correctly, I'm posting a pic of how I did it.

**N2TRUX** · 01-17-2009, 12:40 AM

Welcome to the forum 82Cecil. As mentioned, your issue is the wheel you have on your truck. You can grind your a-arm a bit or get a wheel with less backspace or larger diameter.

Cyclone · 01-17-2009, 01:02 AM

Spacer?

S10Fan · 01-17-2009, 08:43 AM

Quote:

Originally Posted by Cyclone

Spacer?

Spacers would be great, finding a suitable wheel stud (longer) is a problem. I've been looking for several months, nothing but racing studs (way too long) can be found.

82Cecil · 01-17-2009, 01:13 AM

Thanks for the welcome ! and all the advice too. I'll measure the back spacing tomarrow, I would love to solve the problem with less back spacing and stay with a different style 15" wheel.

cochino12 · 01-17-2009, 03:59 AM

Just grind it a little and you will be fine

fast75 · 01-17-2009, 06:18 AM

i have three inch drops from DJM, i just did a little grinding and the 15 inch cragars fit fine..............

bigblock73 · 01-17-2009, 11:07 AM

ARP will make them to your specs, at a cost of 8-10 a piece...I looked or a long time too couple years ago.

**lolife99** · 01-17-2009, 01:02 PM

Actual backspacing is measured (when ordering wheels) from the outer-most lip. You are down on the bead surface.

I would just trim the a-arm a little.

Slammed '87 · 01-17-2009, 03:49 PM

I would have to say that there is a problem. The whole idea of a 2.5" drop spindle rather than a 3" is to avoid that rubbing problem with 15" wheels. If there isn't a problem and it does rub, the solution is simple, as was suggested, trim the a-arm down, or use a 1/4" spacer. I have done both with no issues. I try to avoid spacers if possible tho.

01-16-2009, 10:47 PM	#1
82Cecil Registered User Join Date: Jan 2009 Location: Jacksonville FL Posts: 47	McGaughy 2.5 drop spindles rub lower ball joint pics Using stock ball joints rims are 15" I'm wondering if I did something wrong because, no where does it say I can't use a 15" rim. Attached Images Last edited by 82Cecil; 01-16-2009 at 11:42 PM.

01-16-2009, 11:29 PM	#2
boatpuller Registered User Join Date: Sep 2005 Location: Sun City West, Az Posts: 3,822	Re: McGaughy 2.5 drop spindles rub lower ball joint that's the same place my 3 inch belltech spindle's rubbed with stock 15 inch rally's.i went to 17's. __________________ " Never look up a dead dogs butt."

01-17-2009, 12:29 AM	#3
heavychevy79 Cheyenne Super Join Date: Nov 2008 Location: Dallas Texas Posts: 545	Re: McGaughy 2.5 drop spindles rub lower ball joint Those arn't stock wheels for that year truck. Steel wheels will fit.

01-17-2009, 12:18 PM	#5
82Cecil Registered User Join Date: Jan 2009 Location: Jacksonville FL Posts: 47	Re: McGaughy 2.5 drop spindles rub lower ball joint I measured back spacing on the non original rim I'm trying to use, but to be sure I did it correctly, I'm posting a pic of how I did it. Attached Images

01-17-2009, 12:40 AM	#6
N2TRUX Happy to be here Join Date: Mar 2000 Location: Cypress, TX Posts: 39,023	Re: McGaughy 2.5 drop spindles rub lower ball joint Welcome to the forum 82Cecil. As mentioned, your issue is the wheel you have on your truck. You can grind your a-arm a bit or get a wheel with less backspace or larger diameter. __________________ Follow me on Facebook and Instagram @N2trux.com Articles- "Jake" the 84 to 74 crewcab "Elwood" the77_Remix 85 GMC Sierra "Scarlett" "Refining Sierra"

01-17-2009, 01:02 AM	#7
Cyclone Registered User Join Date: Oct 2004 Location: Sonoma, CA Posts: 318	Re: McGaughy 2.5 drop spindles rub lower ball joint Spacer?

01-17-2009, 01:13 AM	#9
82Cecil Registered User Join Date: Jan 2009 Location: Jacksonville FL Posts: 47	Re: McGaughy 2.5 drop spindles rub lower ball joint Thanks for the welcome ! and all the advice too. I'll measure the back spacing tomarrow, I would love to solve the problem with less back spacing and stay with a different style 15" wheel.

01-17-2009, 03:59 AM	#10
cochino12 It followed me home? Join Date: Mar 2003 Location: Yup Posts: 5,751	Re: McGaughy 2.5 drop spindles rub lower ball joint Just grind it a little and you will be fine __________________ Adam That's why they call it a shortcut Kyle, if it was easy it would just be the way. 86 c-10 SWB 85 CCSB 90 GMC K30 Crew SRW 1985 C30 Dually

01-17-2009, 06:18 AM	#11
fast75 Go Hard or Go Home! Join Date: Dec 2008 Location: quitman, tx Posts: 261	Re: McGaughy 2.5 drop spindles rub lower ball joint i have three inch drops from DJM, i just did a little grinding and the 15 inch cragars fit fine.............. __________________ 75 short wide 350, some mods, scare the piss outta ya quick. 2008 Dodge crew cab. YEAH, it's got a hemi, your ass is going to jail quick. Some day's, it's just not worth chewing through the restraints................................

01-17-2009, 11:07 AM	#12
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,826	Re: McGaughy 2.5 drop spindles rub lower ball joint ARP will make them to your specs, at a cost of 8-10 a piece...I looked or a long time too couple years ago. __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

01-17-2009, 01:02 PM	#13
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,703	Re: McGaughy 2.5 drop spindles rub lower ball joint Actual backspacing is measured (when ordering wheels) from the outer-most lip. You are down on the bead surface. I would just trim the a-arm a little. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

01-17-2009, 03:49 PM	#14
Slammed '87 Registered User Join Date: Feb 2003 Location: Calgary Canada Posts: 556	Re: McGaughy 2.5 drop spindles rub lower ball joint I would have to say that there is a problem. The whole idea of a 2.5" drop spindle rather than a 3" is to avoid that rubbing problem with 15" wheels. If there isn't a problem and it does rub, the solution is simple, as was suggested, trim the a-arm down, or use a 1/4" spacer. I have done both with no issues. I try to avoid spacers if possible tho. __________________ If you can't rock the roads with your bumpers 1/2" off the ground, you're nowhere near low enough!



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