2/4 drop on 08 GMC Sierra - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**ms2335** · 07-02-2012, 09:25 AM

I am considering a 2/4 drop with 20" wheels on my 2008 GMC. Is there any one out there with that drop combo that can post up some pictures before I spend the money

Thanks
Mike
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**ms2335** · 07-03-2012, 08:29 PM

Any suggestion not wanting it to sit on the tires but look real nice. I also don't want to go bigger than 20" wheels
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piecesparts · 07-10-2012, 04:38 PM

I put a McGaughy's drop on my 2011 GMC SWB. It is a 4/6 drop with a slightly smaller diameter tire on 20" rims. I went from the factory tires to a 265/50/20 tire and they fit real well. The only tight spots were in the plastic front fender wells. I cut the top out of the plastic liners and opened up the area to the metal fender behind it. No issues with ride or driving, just the front plastic liners rubbing on heavy road bumps. This picture is the factory 20" wheels, I have now changed it over to a set of Akuza wheels.

**ms2335** · 07-10-2012, 05:31 PM

Thanks for the reply and you do have a nice truck. After doing some measuring and seeing some other trucks, I think I want to go with a 3/5 drop instead of the 2/4. The tires and wheels that I will be installing has 285/50/20 on them. The diameter on them is about the same as the 275/55/20. Do you think they will rub to bad at 3/5?

piecesparts · 07-10-2012, 09:01 PM

The 275/55/20 on my truck was right up against my liners, so the ssmaller tires were installed. My luck, was that the tires on my truck only had 500 miles on them, so the dealer gave me a good deal in the trade. I think that you will be awful close with your size choice in tires. The 285/50 tires are 31.22 inches in diameter, the 275/55 tires are 31.91 inches in diameter, and the 265/50 tires are 30.43 inches in diameter. I can see what the differences are in height, and one thing that you should consider, a slightly shorter tire will increase your low end torque.

I believe that you will end up rubbing the fender liners, but it may not be all that bad. I run my truck down the highway at normal speeds for my area, but when I hit some pavement approaches to certain bridges, I do rub my fender liners a little.

Slammed66 · 07-15-2012, 10:37 PM

heres my 12, crew short with the 2/4....

Just go 3/5, I wish I had / might still/ should.............

**ms2335** · 07-16-2012, 11:22 AM

Nice truck! I am really considering going with the 3/5 now but I am going to have to get some smaller tires first.

55belairtim · 07-29-2012, 12:04 AM

hi
the 3/5 kit and 4/6 kit is by far the most popular kit out there. i carry the mcgaughys kit 34060 which will do 1-4 inches of drop in the front and 5-7 inches in the rear. its my most popular kit that i sell
comes with spindles coil relocators for the front and flip kit lift hanger new bump stops and shock extenders for the rear.
pm if your interested
thanks tim

07-02-2012, 09:25 AM	#1
ms2335 Senior Member Join Date: Jan 2009 Location: glenmora. la Posts: 290	2/4 drop on 08 GMC Sierra I am considering a 2/4 drop with 20" wheels on my 2008 GMC. Is there any one out there with that drop combo that can post up some pictures before I spend the money Thanks Mike Posted via Mobile Device __________________ 65 Chevy C10 Short Fleet BBW 6.0L/4l80E 68 Chevy C10 SWB 6.0L/4L80E 84 Chevy C10 SWB 5.3/4l60E QA1 Suspension

07-03-2012, 08:29 PM	#2
ms2335 Senior Member Join Date: Jan 2009 Location: glenmora. la Posts: 290	Re: 2/4 drop on 08 GMC Sierra Any suggestion not wanting it to sit on the tires but look real nice. I also don't want to go bigger than 20" wheels Posted via Mobile Device __________________ 65 Chevy C10 Short Fleet BBW 6.0L/4l80E 68 Chevy C10 SWB 6.0L/4L80E 84 Chevy C10 SWB 5.3/4l60E QA1 Suspension

07-10-2012, 04:38 PM	#3
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: 2/4 drop on 08 GMC Sierra I put a McGaughy's drop on my 2011 GMC SWB. It is a 4/6 drop with a slightly smaller diameter tire on 20" rims. I went from the factory tires to a 265/50/20 tire and they fit real well. The only tight spots were in the plastic front fender wells. I cut the top out of the plastic liners and opened up the area to the metal fender behind it. No issues with ride or driving, just the front plastic liners rubbing on heavy road bumps. This picture is the factory 20" wheels, I have now changed it over to a set of Akuza wheels. Attached Images __________________ Frank

07-10-2012, 05:31 PM	#4
ms2335 Senior Member Join Date: Jan 2009 Location: glenmora. la Posts: 290	Re: 2/4 drop on 08 GMC Sierra Thanks for the reply and you do have a nice truck. After doing some measuring and seeing some other trucks, I think I want to go with a 3/5 drop instead of the 2/4. The tires and wheels that I will be installing has 285/50/20 on them. The diameter on them is about the same as the 275/55/20. Do you think they will rub to bad at 3/5? __________________ 65 Chevy C10 Short Fleet BBW 6.0L/4l80E 68 Chevy C10 SWB 6.0L/4L80E 84 Chevy C10 SWB 5.3/4l60E QA1 Suspension

07-10-2012, 09:01 PM	#5
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: 2/4 drop on 08 GMC Sierra The 275/55/20 on my truck was right up against my liners, so the ssmaller tires were installed. My luck, was that the tires on my truck only had 500 miles on them, so the dealer gave me a good deal in the trade. I think that you will be awful close with your size choice in tires. The 285/50 tires are 31.22 inches in diameter, the 275/55 tires are 31.91 inches in diameter, and the 265/50 tires are 30.43 inches in diameter. I can see what the differences are in height, and one thing that you should consider, a slightly shorter tire will increase your low end torque. I believe that you will end up rubbing the fender liners, but it may not be all that bad. I run my truck down the highway at normal speeds for my area, but when I hit some pavement approaches to certain bridges, I do rub my fender liners a little. __________________ Frank

07-15-2012, 10:37 PM	#6
Slammed66 Needs a Big Block Join Date: Oct 2003 Location: Red Deer , Alberta Posts: 1,198	Re: 2/4 drop on 08 GMC Sierra heres my 12, crew short with the 2/4.... Just go 3/5, I wish I had / might still/ should............. __________________ 1964 Short box On dropmembers and billets 1962 Suburban family cruiser 1972 K10

07-16-2012, 11:22 AM	#7
ms2335 Senior Member Join Date: Jan 2009 Location: glenmora. la Posts: 290	Re: 2/4 drop on 08 GMC Sierra Nice truck! I am really considering going with the 3/5 now but I am going to have to get some smaller tires first. __________________ 65 Chevy C10 Short Fleet BBW 6.0L/4l80E 68 Chevy C10 SWB 6.0L/4L80E 84 Chevy C10 SWB 5.3/4l60E QA1 Suspension

07-29-2012, 12:04 AM	#8
55belairtim Registered User Join Date: Feb 2009 Location: fresno,ca Posts: 56	Re: 2/4 drop on 08 GMC Sierra hi the 3/5 kit and 4/6 kit is by far the most popular kit out there. i carry the mcgaughys kit 34060 which will do 1-4 inches of drop in the front and 5-7 inches in the rear. its my most popular kit that i sell comes with spindles coil relocators for the front and flip kit lift hanger new bump stops and shock extenders for the rear. pm if your interested thanks tim



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