Need some guidance here from the guru's - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sixTsix · 12-29-2013, 10:59 PM

Gents, I am fixing to order slew of parts for the front end of my truck and I want to make sure I'm heading in the right direction here. I'm sure this subject has been beat to death before ..but did a search and didn't find exactly the answer I was looking for so....
Ok so my main question here is how low can I bring the front end down before I start to have issues with fender clearance's on the front. I was heading for 2.5 drop spindles and 2" drop springs. I just want to make sure I wont have issues at that height with out going modular spindal's I will be running 15x7 wheels ( either wheel vintiques steelies or alum slots) and probably a 60 series tire. I figured at this height I would more than likey need modular spindles. Do the gurus think that I will have issues?

**Clyde65** · 12-29-2013, 11:23 PM

Your list is real close to what I have ( 2.5 spindles and 1.5" springs) and I don't rub, my front tires are 225/70/15 on 6.5" rallies.

sixTsix · 12-29-2013, 11:29 PM

Thanks for the rapid reply Clyde. From I can see in your avatar looks like you fender lip has plenty of clearance. You're running 3.5 and if I go with the set up I am talking about, mine will be 4.5 total drop.
Also I am curious which I'm pretty sure I know the answer to this question, with a 4.5 drop up front I need to run shock re-locators as well huh? Or will lowered shocks work?

Tx Firefighter · 12-30-2013, 07:35 AM

You'll be just fine with your current plan.

Here is my old 63 with 2.5 non modular spindles and 2 inch coils. Front wheels are 7 inches wide with 235/50-15 tires.

There is no need to relocate the shocks. All your shocks are effectively seeing is a 2 inch drop, as the spindles do not affect shock length in any way, just the springs.

tincan1966 · 12-30-2013, 09:00 AM

Backspacing on the wheels will affect your chances of rubbing. With a 7" wide wheel, I belive the "normal" backspacing would be 3-3 1/2" and you'll have no problems.

If you tried to run a 9" wheel, with only 3" BS you could have issues while turning sharp over bumps/dips in the road. Keeping your BS at roughly half your overall width will normally keep you out of trouble.

12-29-2013, 10:59 PM	#1
sixTsix Registered User Join Date: Dec 2012 Location: Conroe/Houston Texas Posts: 121	Need some guidance here from the guru's Gents, I am fixing to order slew of parts for the front end of my truck and I want to make sure I'm heading in the right direction here. I'm sure this subject has been beat to death before ..but did a search and didn't find exactly the answer I was looking for so.... Ok so my main question here is how low can I bring the front end down before I start to have issues with fender clearance's on the front. I was heading for 2.5 drop spindles and 2" drop springs. I just want to make sure I wont have issues at that height with out going modular spindal's I will be running 15x7 wheels ( either wheel vintiques steelies or alum slots) and probably a 60 series tire. I figured at this height I would more than likey need modular spindles. Do the gurus think that I will have issues?

12-29-2013, 11:23 PM	#2
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,540	Re: Need some guidance here from the guru's Your list is real close to what I have ( 2.5 spindles and 1.5" springs) and I don't rub, my front tires are 225/70/15 on 6.5" rallies. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

12-29-2013, 11:29 PM	#3
sixTsix Registered User Join Date: Dec 2012 Location: Conroe/Houston Texas Posts: 121	Re: Need some guidance here from the guru's Thanks for the rapid reply Clyde. From I can see in your avatar looks like you fender lip has plenty of clearance. You're running 3.5 and if I go with the set up I am talking about, mine will be 4.5 total drop. Also I am curious which I'm pretty sure I know the answer to this question, with a 4.5 drop up front I need to run shock re-locators as well huh? Or will lowered shocks work?

12-30-2013, 07:35 AM	#4
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Need some guidance here from the guru's You'll be just fine with your current plan. Here is my old 63 with 2.5 non modular spindles and 2 inch coils. Front wheels are 7 inches wide with 235/50-15 tires. There is no need to relocate the shocks. All your shocks are effectively seeing is a 2 inch drop, as the spindles do not affect shock length in any way, just the springs. __________________ I'm on the Instagram- @Gearhead_Kevin

12-30-2013, 09:00 AM	#5
tincan1966 Registered User Join Date: Oct 2010 Location: Independence,KS Posts: 1,477	Re: Need some guidance here from the guru's Backspacing on the wheels will affect your chances of rubbing. With a 7" wide wheel, I belive the "normal" backspacing would be 3-3 1/2" and you'll have no problems. If you tried to run a 9" wheel, with only 3" BS you could have issues while turning sharp over bumps/dips in the road. Keeping your BS at roughly half your overall width will normally keep you out of trouble.



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