8 lug wheels
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Junior User
Joined: Jul 2004
Posts: 92
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From: Utah
8 lug wheels
I inherited a 61 f100 uni that I was told had an upgraded suspension, to a 3/4 ton. All I know for sure is that it has 8 lug wheels. Can anyone tell me what is really under this old truck? My grandpa had done a lot of fabricating and upgrades, but that all had to be pre 1980. Anyway, thanks for the help.
Posting Guru
Joined: Jul 2003
Posts: 2,222
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From: East Central Florida
Randy,
I concur with John 100%. 5 lug set up thru 72 was 1/2 ton & 8 lug either 3/4 ton or 1 ton set ups.
Also trucks before 1973 [57-72 F series] had narrower axle assemblies, trucks 73 & after are wider. It goes for both single and dual rear wheel set ups. Although I don't believe any OEM 3/4 ton (F-250) Dually were made by FoMoCo at the factory.
Without some dimensions, ID Numbers, or other information to go on, what I say would be a presumption. The easiest swap I know of would be to use F-250 axle assy's & suspension from a 57-72 year model as it is pretty much a bolt up deal.
Also FWIW & if you're interested, F-250 4X4 set ups, thru 72 also are bolt up as far as axles & suspensions are concerned. You could use F350 4X2 or 4X4 stuff but F350 dually rear is a lot narrower to allow for a extra wheel in dually set ups.
FBp
I concur with John 100%. 5 lug set up thru 72 was 1/2 ton & 8 lug either 3/4 ton or 1 ton set ups.
Also trucks before 1973 [57-72 F series] had narrower axle assemblies, trucks 73 & after are wider. It goes for both single and dual rear wheel set ups. Although I don't believe any OEM 3/4 ton (F-250) Dually were made by FoMoCo at the factory.
Without some dimensions, ID Numbers, or other information to go on, what I say would be a presumption. The easiest swap I know of would be to use F-250 axle assy's & suspension from a 57-72 year model as it is pretty much a bolt up deal.
Also FWIW & if you're interested, F-250 4X4 set ups, thru 72 also are bolt up as far as axles & suspensions are concerned. You could use F350 4X2 or 4X4 stuff but F350 dually rear is a lot narrower to allow for a extra wheel in dually set ups.
FBp
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Junior User
Joined: Jul 2004
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From: Utah
Thanks Guys. What drove my question is that I would like to put disc brakes on the front. I have seen posts about a spindle bolt on conversion and am trying to be sure that I look for and get the right parts to do the conversion w/out changing the straight axle.
Post Fiend
Joined: Nov 2000
Posts: 6,060
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From: Glendale Arizona
The 61 F100 spindle and F250 Spindle are the same diameters for the races, however i have not found anyone who produces a kit to keep the 8 lug wheels. all the replacment kits are 5 0n 5.5 or chebby 5 0n 4 3/4
There is no direct spindle late model bolt on that will work with the straight axle.
In the rear do you have a spicer/Dana or nine inch? lots of trucks had the old JC witney aluminum 5x8 lug conversions. check and see actually what rear is in place.
Garbz
There is no direct spindle late model bolt on that will work with the straight axle.
In the rear do you have a spicer/Dana or nine inch? lots of trucks had the old JC witney aluminum 5x8 lug conversions. check and see actually what rear is in place.
Garbz
