15" rims over 8 lug 10 bolt front and 14 bolt

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

colonel mustard

Full Access Member
Joined
Apr 4, 2018
Posts
187
Reaction score
155
Location
louisville ky
First Name
steven
Truck Year
1981
Truck Model
k5 blazer
Engine Size
350
ok...so I'm in the process of gathering parts for my 14 FF and 8 lug hub swap. I'm looking at wheels now. I really don't want to buy new tires since mine are only a year old. Will a 15" rim fit over a 10 bolt 8 lug hub ? and how about the 14 bolt FF ?
 

Craig 85

Full Access Member
Joined
Jan 25, 2017
Posts
3,917
Reaction score
4,116
Location
Nashville, TN
First Name
Craig
Truck Year
1985
Truck Model
K30 SRW
Engine Size
454/TH-400/NP205
Here's a couple of guys that have 15" wheels on there trucks. I believe you have to grind on the front calipers to make them fit.
@roundhouse @hirschdalechevy
 

roundhouse

Full Access Member
Joined
Apr 5, 2014
Posts
669
Reaction score
527
Location
atlanta ga
First Name
justin
Truck Year
77,78,79,80 ?
Truck Model
K10
Engine Size
350
15” will fit over the 8 lug brakes
But you have to grind some metal off the caliper

15” 8 lug wheels are very rare though

I just stumbled across these
Unless you already have some I wouldn’t count on being able to find any

If I had it to do over again I wouldn’t swap to 8 lug

I did the swap because I kept breaking the 10 and 12 bolt axles just with normal street driving with 33 or 35” tires

But I’ve since learned that some models of the Avalanche came with 14 bolt semi float 6 lug rear axles

That would have been a better way to go I think
You must be registered for see images attach
 

colonel mustard

Full Access Member
Joined
Apr 4, 2018
Posts
187
Reaction score
155
Location
louisville ky
First Name
steven
Truck Year
1981
Truck Model
k5 blazer
Engine Size
350
15” will fit over the 8 lug brakes
But you have to grind some metal off the caliper

15” 8 lug wheels are very rare though

I just stumbled across these
Unless you already have some I wouldn’t count on being able to find any

If I had it to do over again I wouldn’t swap to 8 lug

I did the swap because I kept breaking the 10 and 12 bolt axles just with normal street driving with 33 or 35” tires

But I’ve since learned that some models of the Avalanche came with 14 bolt semi float 6 lug rear axles

That would have been a better way to go I think
You must be registered for see images attach


thanks for the info. 4 wheel parts has some 15" 8 lugs I'm gonna grab. for now its cheaper than buying new tires . next time I need tires I will get 37" BFG and a 16 or 17" rim
 

roundhouse

Full Access Member
Joined
Apr 5, 2014
Posts
669
Reaction score
527
Location
atlanta ga
First Name
justin
Truck Year
77,78,79,80 ?
Truck Model
K10
Engine Size
350
thanks for the info. 4 wheel parts has some 15" 8 lugs I'm gonna grab. for now its cheaper than buying new tires . next time I need tires I will get 37" BFG and a 16 or 17" rim
I didn’t know anyone still made 8 lug 15s

And it’s a scam that for every inch over 15 the price of the tire goes up $80-100

A 35x17 tire costs $200 more than the exact same tire in 15

Theres LESS material in the tire yet they jack the price
 

Kyle Childress

Full Access Member
Joined
Apr 16, 2018
Posts
278
Reaction score
231
Location
Brownsville KY
First Name
Kyle
Truck Year
1979
Truck Model
K20 silverado
Engine Size
355
look at Hercules Iron Man tires, bought a set of 35x12.5R20 for $800, set of comparable BFGs were $1400.

You must be registered for see images attach
 
Last edited:

Camar068

Supporting Member
Supporting Member
Joined
Feb 5, 2014
Posts
4,293
Reaction score
3,339
Location
Kentucky
First Name
David
Truck Year
1986
Truck Model
K10/LM7 5.3/4L60e/np208/3.73/32"
Engine Size
10 yrs Air Force
look at Hercules Iron Man tires, bought a set of 35x12.4R20 for $800, set of comparable BFGs were $1400.

You must be registered for see images attach


Good info thanks.
 

hirschdalechevy

Full Access Member
Joined
Mar 8, 2011
Posts
726
Reaction score
517
Location
norcal
First Name
rich
Truck Year
1977
Truck Model
k-30
Engine Size
454
ok...so I'm in the process of gathering parts for my 14 FF and 8 lug hub swap. I'm looking at wheels now. I really don't want to buy new tires since mine are only a year old. Will a 15" rim fit over a 10 bolt 8 lug hub ? and how about the 14 bolt FF ?

Look for wheels that are 3 1/2 back space , summit has a few , bart super trucker's , raceline , us wheel. I did the grind in front and ran drop in 1/8 or 1/4 inch spacer's as well. My crew cab has bart 15x12 super truckers.

You must be registered for see images attach
 

nwalk7800

Junior Member
Joined
Jul 1, 2016
Posts
4
Reaction score
1
Location
Nebraska
First Name
Nick
Truck Year
1980
Truck Model
Blazer
Engine Size
350
I just did a similar thing to my truck. I already had the 14 FF on the rear, but finally upgraded my front to the 8 lug.

I initially ordered some wheels from 4 wheel parts, but they didn't actually have any in stock and gave me a couple month back order time frame.

I ended up cancelling and ordering these from Summit. They were in stock and shipped free in a couple of days. They have a 4.125 in. backspace, so no spacers required. I did need to do a little grinding on the caliper though, as others have stated.

https://www.summitracing.com/parts/CRR-3155180
 

dougbert

Full Access Member
Joined
Nov 2, 2015
Posts
659
Reaction score
175
Location
5535 feet in Utah Mountains
First Name
doug
Truck Year
1984
Truck Model
K1500/nv4500/np241c/33x12.50x16/4.10 Gears 14BFF
Engine Size
5.3L - 2002 Silverado, rebuilt top end, long tube headers
got my rig running last year on 16" tires (33" TreadWrights) on 6 lug wheels, and just installed my 14bff 2 weeks ago. At the moment, I carry 2 spares, one 8 lug and one 6 lug. But I have in the queue the spindles off of the same donor vehicles for the 14bff, for the front. I just bit the bullet and went 16" from the start. So yeah I will have some 16" 6 lugs to sell off some time

dougbert
 

beest

Full Access Member
Joined
Feb 13, 2015
Posts
109
Reaction score
29
Location
indiana
First Name
matt
Truck Year
84
Truck Model
k10
Engine Size
350
I also have the Bart wheels from Summit. 15x12 with 3.5" bs. 14b and a d60. Grinding was required. They are heavy but inexpensive.
 

CSFJ

-----------------
Supporting Member
Joined
Jul 1, 2014
Posts
6,160
Reaction score
5,170
Location
------
First Name
-------------
Truck Year
-------
Truck Model
-------
Engine Size
-------
I didn’t know anyone still made 8 lug 15s

And it’s a scam that for every inch over 15 the price of the tire goes up $80-100

A 35x17 tire costs $200 more than the exact same tire in 15

Theres LESS material in the tire yet they jack the price
Tire prices are based on how common they are. When most light duty trucks ran a 15" wheel, that size was cheap and easy to find. Now that the larger wheel sizes are more common, those tires are coming down in price as the 15"s are going up. Has nothing to do with size, and everything to do with market saturation. Look at the 16.5 tires. As those wheels disappeared, the tires to fit them have become more expensive, and more difficult to find.
 

roundhouse

Full Access Member
Joined
Apr 5, 2014
Posts
669
Reaction score
527
Location
atlanta ga
First Name
justin
Truck Year
77,78,79,80 ?
Truck Model
K10
Engine Size
350
It’s basically a matter of how much they can gouge and rip off the consumers
 

colonel mustard

Full Access Member
Joined
Apr 4, 2018
Posts
187
Reaction score
155
Location
louisville ky
First Name
steven
Truck Year
1981
Truck Model
k5 blazer
Engine Size
350
they fit perfectly. just test fitted my bart 15x10 with a 3.5" BS. fit with zero rubs.
 

colonel mustard

Full Access Member
Joined
Apr 4, 2018
Posts
187
Reaction score
155
Location
louisville ky
First Name
steven
Truck Year
1981
Truck Model
k5 blazer
Engine Size
350
thanks for the info. 4 wheel parts has some 15" 8 lugs I'm gonna grab. for now its cheaper than buying new tires . next time I need tires I will get 37" BFG and a 16 or 17" rim


so FYI to all ordering from 4 wheel parts (which I am not a fan of). after I ordered my wheels from them on a huge sale they had going on and I paid for expedited shipping...4 days later they still hadn't shipped. I called them to find out what was going on. apparently those procomp wheels are on back order for 90 days and have been on back order since june. damn really? you couldn't have called me to fill me in. or put it on the website that these wheels are probably never going to available again...pretty ****** way to do business. not to mention when I called them they treated me like I was somehow the ******* and blah blah blah.

long story short I found some barts at summit for 300$ shipped. can beat that. the wheels were here the day after I ordered them. yay me
 

Forum statistics

Threads
44,168
Posts
950,797
Members
36,284
Latest member
RogerioHR
Top