The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 04-14-2007, 10:56 AM   #1
vern350
like a rock
 
vern350's Avatar
 
Join Date: Nov 2004
Location: Ontario, Canada
Posts: 517
15" rims on 3/4ton

will 15" rims fit a 3/4 ton 4x4? Thanks
vern350 is offline   Reply With Quote
Old 04-14-2007, 02:57 PM   #2
84lwb
Registered User
 
84lwb's Avatar
 
Join Date: Apr 2007
Location: Southern Maryland
Posts: 209
Re: 15" rims on 3/4ton

I would say no,probably have a HARD time finding 8 lug 15" rims,and they may not fit over your brakes.
84lwb is offline   Reply With Quote
Old 04-14-2007, 03:27 PM   #3
fourty1
Registered User
 
fourty1's Avatar
 
Join Date: Dec 2006
Location: washington state
Posts: 144
Re: 15" rims on 3/4ton

Vern,
I have a 67 3/4t, 350-th400, Eaton diff. w/4;57 gears, 8-lug w-16" & 32" commercial tires.

I did the 2 1/2 dropped spindles (8-lug !) 1" springs, & 4" drop spring in the rear. I replaced the 16" whls w 17" Weld Coneheads (8-lug) & 28" Continental tires.
Messed up the gear ratio !, gas mileage & turning about 3200 @ 55mph !!

Now I need to replace the Eatin diff, w/ a Dana and try to get some 3:08 gears to get everything in line again...
Not sure if this answers your question ( kinda vague, you are probably running a Dana, just check your gear ratios, or maybe it doesn't matter ), but one thing DOES lead to another. here's the truck. first is before, second is after:
-41-
Attached Images
  
__________________
1941 Chevy 1/2 ton Street Rod: 327 cu,/350 auto, 'Stinger ' - JULY 2007 CUSTOM CLASSIC TRUCK magazine.

1967 Chevy 3/4 ton standard bed, 350 cu./400 auto,
w/ 83 - 3:43 rear end...sips gas....
fourty1 is offline   Reply With Quote
Old 04-14-2007, 05:56 PM   #4
vern350
like a rock
 
vern350's Avatar
 
Join Date: Nov 2004
Location: Ontario, Canada
Posts: 517
Re: 15" rims on 3/4ton

not 2 sure if that helps, but killer 67. I dont think 15" rims will clear the brakes. Found some 35x12.50x15 all terrans and just currious if 15" rims will work. Anyone?
vern350 is offline   Reply With Quote
Old 04-14-2007, 10:27 PM   #5
oldgmc
Registered User
 
oldgmc's Avatar
 
Join Date: Oct 2006
Location: nj
Posts: 54
Re: 15" rims on 3/4ton

On a 79 3/4 I have 8 lug 15" they are about 33" ar I think. I did not buy they came with the truck.
Attached Images
 
oldgmc is offline   Reply With Quote
Old 04-15-2007, 09:02 AM   #6
MylilBowTie
Right turn Clyde
 
MylilBowTie's Avatar
 
Join Date: Nov 2002
Location: Cincinnati, Ohio
Posts: 2,911
Re: 15" rims on 3/4ton

They will work with the rear fine. Its the front calipers that need a little grinding to get them to fit nice.

http://www.coloradok5.com/d60calipergrind.shtml

Here is a Summit part number for the 15x8 8 lug rim for 34.88 per rim USW-70-5880
__________________
1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73
1992 Camaro RS 305 TBI
MylilBowTie is offline   Reply With Quote
Old 04-15-2007, 11:07 AM   #7
vern350
like a rock
 
vern350's Avatar
 
Join Date: Nov 2004
Location: Ontario, Canada
Posts: 517
Re: 15" rims on 3/4ton

h'mm, i guess i'll have to think about. Thanks for that last link and all the reply's, much appreciated.
vern350 is offline   Reply With Quote
Old 04-16-2007, 05:13 AM   #8
bb1979
Registered User
 
bb1979's Avatar
 
Join Date: Apr 2007
Location: NSW, Australia
Posts: 205
Re: 15" rims on 3/4ton

g'day from the land downunder lol

15" rims on a 3/4 can be done. I have a 1979 3/4 ton 2wd with 3" drop spindles 2 inch dropped coils and 15" rims with 30x9.5x15 Radial T/a's on the front. The spindle and the brake caliper do need grinding but nothing that will cause problems. The rears fit fine. Actually the only reason I had to grind was because of the offset on my rims and the drop. I've been running this combo for 5 years now no problems just install new brake pads before grinding so the caliper is moved as far outboard as it will ever go.


Having said all this my old mans 3/4 uses a set of 15" rims with no grinding and only a 2" set of cut coils but his rims are set further outboard
bb1979 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:46 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com