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does anybody know the correct tire size for my 79 f100. My speedo is off by 10 at 60 (ie spedo says 50, actually doing 60) i currently have 225/70r15 tires and the speedo doesnt "jump". thanks in advance.
idk for sure, but i would assume 235 would be stock. i'll have to check that tho...
__________________ '81 F-150:300 I6, .060" over, flat tops, Comp Cams 260h, Headman header, Clifford intake, 4spd 4x4...project truck
"I'm not trying to turn my 300 into something its not, I'm turning it into something the factory wouldn't let it be." '03 F-150:4.6L V8, 5spd 4x4...daily driver Nebraska Chapter Member
__________________ '81 F-150:300 I6, .060" over, flat tops, Comp Cams 260h, Headman header, Clifford intake, 4spd 4x4...project truck
"I'm not trying to turn my 300 into something its not, I'm turning it into something the factory wouldn't let it be." '03 F-150:4.6L V8, 5spd 4x4...daily driver Nebraska Chapter Member
__________________ '81 F-150:300 I6, .060" over, flat tops, Comp Cams 260h, Headman header, Clifford intake, 4spd 4x4...project truck
"I'm not trying to turn my 300 into something its not, I'm turning it into something the factory wouldn't let it be." '03 F-150:4.6L V8, 5spd 4x4...daily driver Nebraska Chapter Member
yea, so now i need to get a new trans as well as bigger tires. but it is a work in progress, ans as far as your quote, there are more cows than people in most of the state, lol
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Jerry aka Cross Thread Red If its not Broke...I haven't fixed it yet!!!! GO BIG RED!!!
just some common answers i was giving people when i went to florida in 2006 lol. i was pretty much dressed in my blue jeans, cowboy boots and belt buckle...i turned alot of heads lol. one lady asked me where i was from and said "NeBRASKA??? you folks gots a tornado ever 5 minutes up there, don't cha?" funniest damn thing i heard down there...
...i figured u would need new tires, but a tranny? wat's up w/ that?
__________________ '81 F-150:300 I6, .060" over, flat tops, Comp Cams 260h, Headman header, Clifford intake, 4spd 4x4...project truck
"I'm not trying to turn my 300 into something its not, I'm turning it into something the factory wouldn't let it be." '03 F-150:4.6L V8, 5spd 4x4...daily driver Nebraska Chapter Member
Yea, the trans slips going into 3rd, itll even cause a loss of speed, have to be doing about 50 before it'll shift(when getting on the highway) or idling when going down a hill. i can also move the drive shaft at the end of the tail housing and the u joints are good and tight. All in all, its a good truck, paid $400 for it just over a month ago and am using it as a daily driver. the only thing i have done to it is rebuild the carb (fuel leak at accelerator pump) and replaced the radius arm bushings, and built a custom center console. thats it. The funniest thing i have ever heard is when i was out in va beach when i was in the military and i went up to DC to visit a friend of mine and they wondered what a cow was, never seen one, thought they only existed in zoos, no kidding.
it looks as though my tires should be 235/75R15 instead of 225/75R15, that wouldnt cause a 10mph difference at 60 (spedo shows 50) one wouldn't think
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Jerry aka Cross Thread Red If its not Broke...I haven't fixed it yet!!!! GO BIG RED!!!
Last edited by Bigredfan; 11-10-2008 at 09:36 PM.
Reason: tire size
ha, i'll believe it! i heard that a few years back, schools in new york were taking kids to dairy farms to show them where milk comes from and they had a huge problem w/ kids not eating anything dairy lol! Like ole John "sunshine on my shoulders" Denver said, thank God i'm a country boy!!
that sucks about ur tranny! which one do u have? i've also go a website that has all the ford tranny's and all the gear ratios if ur looking at swapping instead of just replacing...
__________________ '81 F-150:300 I6, .060" over, flat tops, Comp Cams 260h, Headman header, Clifford intake, 4spd 4x4...project truck
"I'm not trying to turn my 300 into something its not, I'm turning it into something the factory wouldn't let it be." '03 F-150:4.6L V8, 5spd 4x4...daily driver Nebraska Chapter Member
its a c6, ill just swap one directly in, get it rebuilt from Certified or somewhere, hell maybe i can find a chapter member who knows how to rebuild them so i might befriend them lol
i also want to swap the carb and intake for a 4bbl. but thatll come in time. well im off for the night, have a great night.
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Jerry aka Cross Thread Red If its not Broke...I haven't fixed it yet!!!! GO BIG RED!!!
ebay is a good place if ur patient enough to wait for a good deal. idk if there is anyone here that knows enough about rebuilding auto's but that would be something worth starting a new thread for...i kno my old man used to work in a tranny shop back in the day, but idk if he's up for doing anymore tranny's. i could always ask. good talkin' to ya, we'll c ya tomorrow!
__________________ '81 F-150:300 I6, .060" over, flat tops, Comp Cams 260h, Headman header, Clifford intake, 4spd 4x4...project truck
"I'm not trying to turn my 300 into something its not, I'm turning it into something the factory wouldn't let it be." '03 F-150:4.6L V8, 5spd 4x4...daily driver Nebraska Chapter Member
__________________ '81 F-150:300 I6, .060" over, flat tops, Comp Cams 260h, Headman header, Clifford intake, 4spd 4x4...project truck
"I'm not trying to turn my 300 into something its not, I'm turning it into something the factory wouldn't let it be." '03 F-150:4.6L V8, 5spd 4x4...daily driver Nebraska Chapter Member
Man you gotta love those $400 trucks! Funny thing is my speedo didnt change when I went from 235/75's to my 32x11.5's. Of course not too much later my speedo quit working alltogether. Maybe that had more to do with it.
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Darin K.
1995 F150 2WD 4.9L Auto
Nebraska Chapter FTE
Man you gotta love those $400 trucks! Funny thing is my speedo didnt change when I went from 235/75's to my 32x11.5's. Of course not too much later my speedo quit working alltogether. Maybe that had more to do with it.
yea i understand that, my 77 sc that i had, and miss, had 31x10.50r15 and it was right, i have a feeling that since i have a problem in the tailshaft that could be causing the problem, so i need to either buy a new trans or have mine rebuilt lots of money i dont have right now to do either so itll have to be that way
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Jerry aka Cross Thread Red If its not Broke...I haven't fixed it yet!!!! GO BIG RED!!!
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lots of money i dont have right now to do either so itll have to be that way
