Got some new wheels: Boss 338's in 20x10 and 20x8.5

[zammer]

Here's my freshly painted 1971 2wd blazer rolling on 338's with a 1" rotor in the front... A big thanks goes out to Lolife99 for informing us on the 1" rotors!!!!
I purchased a set of belltech's 3" drop spindles for 1" rotors and it fits great.

My sizes are 20x8.5 in front and 20x10 in rear..
I upgraded all the ball joints and tie rods to the 73-87 also with a ART front end bag kit and ART arms.. ( cool ride )
I ended up getting a rear coolride kit also... very nice stuff wirth the $$ IMO..

Here's a couple of Now and before tear down pics..

[zammer]

a couple more with wheels bolted onto crossmember only..

[joe231]

Very nice zammer!!!

[lolife99]

Wow!
That chassis is beautiful!
Zammer did you have to cut the end of the spindle down?
Or grind a radius on the edge of the front rotor hub to get the caps to clear?

Do you have a build thread on your blazer?

[zammer]

Hey thanks Lolife, I wasn't planning on going right down to the frame but... i'm pretty picky about stuff - a bit much sometimes, but i'm glad i ended up there as it turned out good and its nice bolting on stuff to a fresh frame
..
No, i didn't have to cut the end of the spindle down at all.. are some guys needing to do this?

I don't have a build thread but i was thinking of getting one going, I finally figured out how to post pics properly..

[72BlckButy]

zammer, that chassis is amazing, nice work!!!

[zammer]

Here's some spindle shots...

[lolife99]

Originally Posted by zammer

Hey thanks Lolife, I wasn't planning on going right down to the frame but... i'm pretty picky about stuff - a bit much sometimes, but i'm glad i ended up there as it turned out good and its nice bolting on stuff to a fresh frame
..
No, i didn't have to cut the end of the spindle down at all.. are some guys needing to do this?
I don't have a build thread but i was thinking of getting one going, I finally figured out how to post pics properly..

I'm just trying to clarify this with the 1" specific spindles.
I think the guys with 1.25" specific spindles are required to do this.
Did you grind on the rotor hub at all?

[zammer]

nope, i haven't had to grind the rotor hub at all yet... I would doubt i need to at all..
Bearings and dust caps went on good and the wheel bolted onto the rotor fine..

[LUV2XCLR8]

Been looking for wheels and found this thread today, I guess I need to take the
Coy's off so I can see if the McGaughy's 13" brake floating hub will be an issue?
I really want to put the Coy's back on the 81 and get these for the 72 so I am
in for a group deal hands down. Zammer do the 10's fit well on the Blazer rear?

[zammer]

yeah the 338's seem to fit good in the back on the blazer.. I haven't had the body back on yet to see if i need to put spacers in or not.. I have to do some rear fender work anyways so i was going to widen them if needed..
I will measure the rear tires end to end for you when i get home from work tonight.. then maybe you can compare track widths..
your blazer chassis looks great! looks like near the same gloss as mine.
sweet.

kris

[franky69c10]

do they make these rims in 22x10

[72BlckButy]

franky here is what's available: (http://www.bossmotorsports.com/custo...els.cfm?id=408)

SIZE:
20x10
20x8.5
18x8
18x9.5
LUG TYPE:
Acorn
FINISH:
Super Finish Black
Chrome
Super Finish Grey

[zammer]

O.K... i measured the rear wheel track width on the blazer and it is exactly 73.5 " outside sidewall to sidewall... hope this helps a bit

[nlped]

The 22" version is in the primary warehouse, but won't start shipping until Feb.

[mrhino]

LUV2XCLR8, love your build looks great, Im doing mine almost the same, I was wondering what size tires you are running on the front. as you can see in the pic I dont have any. cant nail it down to one size. thanks

[lolife99]

Originally Posted by LUV2XCLR8

Been looking for wheels and found this thread today, I guess I need to take the
Coy's off so I can see if the McGaughy's 13" brake floating hub will be an issue?
I really want to put the Coy's back on the 81 and get these for the 72 so I am
in for a group deal hands down. Zammer do the 10's fit well on the Blazer rear?

Hey Craig,...
The only problem I see with the 20x10's is they only come in 6.25" backspace.

I don't know what BS you're running on those 22x9 Coys,... but I'm pretty sure you will need a spacer to put these Boss 338 20x10's on the rear of your blazer.

[Hart_Rod]

Originally Posted by lolife99

Hey Craig,...
The only problem I see with the 20x10's is they only come in 6.25" backspace.

I don't know what BS you're running on those 22x9 Coys,... but I'm pretty sure you will need a spacer to put these Boss 338 20x10's on the rear of your blazer.

I wonder why they don't offer a 5" BS. Seems like that would be the most common...

[lolife99]

Originally Posted by Hart_Rod

I wonder why they don't offer a 5" BS. Seems like that would be the most common...

I think the 6.25" BS is perfect for the 88-98 trucks.
I'm not really sure what Boss was thinking.
Seems like they design a wheel and only offer one backspace per design.

[fast 95]

Originally Posted by lolife99

I think the 6.25" BS is perfect for the 88-98 trucks.

Your right, mine are perfect, any less they would rub the lip on the bed side, any more and they might pose a problem with tire rub on the leafsprings.
Here is how i look at the whole situation, these are AMERICAN made wheels, quality is great, and price cant be beat. I bought these knowing i would need a spacer to make them fit on the front, but once you see a set in person, you will want a set.

[lolife99]

Ok,... a little update from me.
I wanted to post pics of my 338's mounted.

I hammered the dust cap flat, just in case it hit.
(now I don't think I would have had to).
The clips on the plastic Boss wheel center cap still needed a sliight trim.
The picture shows all of them trimmed except one.
(To show how little needs to be removed)

Everything fit fine after that.
I did put a small dab of silcone on each clip, just for the heck of it.
All of this trouble seems worth it (to me) to get cheap wheels,... but it's far from a "bolt on" wheel.

Another issue I recently found,... is the recessed holes for the lug nuts are really small.
They may be fine for a 7/16" lug nut,... but the 1/2" lug nuts required for our trucks,... seem to make it really tight getting a socket inside the hole.
I used a (3/8 drive) 13/16" socket and it was still hard to get the lugs inside the recessed holes.

[zammer]

LoLife99... looks pretty sweet.... Man i love these wheels..

Mrhino... My post #526 on the 338 wheels/tires I went with this size tires:

245/40-20 Falken FK 452 HP _ Front
275/35-20 Falken FK 452 HP _ Rear

They have a very close Diameter... The 275 wide tire is pretty sick.

hope this helps

Kris - Zammer

[Ronm909]

love these wheels so worth a little extra work.
Can anyone please measure total outside width of thier rear wheels, I think I got too big of a real tire. 315/35/20...12" wide. worried it will not tuck if laid out??? I got 73" total width. is that cool?

[lolife99]

Originally Posted by Ronm909

love these wheels so worth a little extra work.
Can anyone please measure total outside width of thier rear wheels, I think I got too big of a real tire. 315/35/20...12" wide. worried it will not tuck if laid out???

Ronm909,... the width will depend on which rearend you have.
67-70?
71-72?
73-87?

I think those 315's look perfect on there.
I'm running a 295/40-20 on the rear.

[Ronm909]

87 10 bolt from a suburban