offroad design doubler

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texan79&96

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has anyone used the offroad design doubler in their bronco? i plan on runnin around 4" of lift with a c6. i was wondering what kind of driveshaft problems to come with this. they said the new doubler comes out to overall length of the same as the full 203, but i dunno if the driveshafts will still be in the same place or not. lucky for us all the ford cases are the same pattern and spline count so it shouldnt be to bad. the problem is my 205 came from a 79 pickup and it doesnt have the bronco type driveshaft. how do i fix this? will my 203 setup bolt on the 205 or do i need to find a bronco 205?? also will i need a body lift to clear everything???

 
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texan79&96

texan79&96

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i dont see why you wouldnt want the doubler?? my truck is going to be an everyday driver on 35 bfgs. gas milage sucks without overdrive. if i were to put 4.88s or 4.56 my rpms with 35s would still be really high on the highway and suckin down the gas. first gear in the c6 isnt very low im buildin mine to crawl around with. my plan is to run 410s in the axles and a doubler. this way rpms will be down so i can cruise at 70 using less gas, and when i get out to a place to play ill be able creep around with deeper gearing than usual.

 
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texan79&96

texan79&96

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i was thinkin about a 4spd for awhile but started thinkin if i get into some really rough stuff it might be better to have the auto. ive never been a auto guy my other trucks a stick but i thought id give it a try before i ditched it. i can get a 76-77 donor truck pretty cheap with the np435/203 with the 460 bellhousing so it should work. i also have a smallblock bellhousing with the 435/205 from a 79 f150. i also want to do everything the right way the first time so i dont have to spend money on exhaust and driveshafts twice. my c6 seems to be in fine shape but im scared of it overheating and i like usin my stick to slow me on hills. the 4spds still a possibility but im probably gonna try the auto first i guess just so i know. switchin to the 4spd could i just take all the clutch linkages off the old frame and drill the holes and everything line up fine on the 79? the pedal assembly i dont quite understand either as the brake pedal is a different style between 79 and the older ones.

 

davids78bronco

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4.10s, 35" tires, and 70mph does not equate to better fuel mileage. But if it looks good on paper, go for it

got another question tho - do you really do offroading hard enough, or in areas, that would require a double low Tcase?

 
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texan79&96

texan79&96

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if the extent of what i did i could do in a fuel injected 5spd shortbed f150 with a leveled suspension a bodylift, 31" bfg muds, and front and rear winches why would i build such a bronco? becuase i need this kind of truck to drive the obstacles i see all the time. im paying for it all, right now im spendin $200/week on tools and in a about a month i start workin over 60 hours a week (for 2 months straight no days off) along with 3 or 4 yards. this bronco is my goal so why would i not build it the best i could?? ive been reasearching this for 2 years now and became interested in broncos 5 years ago when i almost bought a 66 but decied not too because of costs to get it how i wanted it. i was gonna straight axle my 96 and bought a rollin 79 frame to swap everything but decided it would make an impractical everyday driver and it would be to tall. so i tracked down a solid 79 ranger xlt and im still researching how to build it. if that is your truck how it is in the picture i guess you wuoldnt understand the need for a low range or articulation......c6 205 3.50s open and 36" tires?? 3" and uncut fenders those things dont have any room to move. maybe your not interested in being able to go almost anywhere but i am. i realize in town with 4.11s and 35s gas milage may not be that great but once im rollin down the highway on a 2 or 3 hour trip i think it would help.icant put 5.13s in with 35s and drive that far that would be ridicoulous tryin to drive with traffic with a 3spd c6. also i would be more likely ot break the pinion on gears like that. also with the doubler ill have more ratios to pick from sometimes i like drivin at high speed through big muddy straights, sometimes i like to try to go over wierd rocky stuff, and im always wishin i had somethin to drive when i see the crazy stuff that would definately require a super low gear. (i have drove trucks with the np435 205 33"s and 3.50s id like to have alot lower than that but not be crazy over revvin goin highway speeds gettin to the trails). sure you could hammer down and slam up a few of the cool trails here but probably tear your rig to pieces and break stuff all day but why not build it right and be able to use a little skill to drive smoothly up them instead of pure momentum? i realize this truck will never get good milage and thats ok, but i truly think it could help a little and that cant hurt when thats not the big reason for gettin it anyway. no offense, but the picture and description of the truck you have up on here just couldnt make it on the things i plan on driving. right now im building around superfelx springs (6" lift moved up 2") same 4" rear springs, my wristed arm is almost done, either 35 bfg or your 36 swamper radials, locked front and rear but undecided, f/r winches, alloy shafts ctm joints etc etc... the doubler seems to be a definate and very important part of the overall vehicle i was just lookin for some simple feedback about it.

 

davids78bronco

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I didn't need a history lesson, but ok. And since you seem to feel the need to compare trucks, mine's built for the terrain I drive, not yours. I stuff my tires just fine, with not rubbing at all, thanks. And you might be right, with the way my truck is built CURRENTLY, then it might not make it on the things you PLAN on driving. As it sits now, this couldn't drive the trails I PLAN on driving either

I'm not condemning your want for the doubler, just asking a simple question

 
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texan79&96

texan79&96

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if i have offended you i am sorry im not lookin for enimies on here maybe i miss understood your reply about my idea looking good on paper and askin if i really would put the thing to use. but why wuold i spend that kinda cash and time on a part i dont need??? it sounded like you thought i didnt know what i was thinkin or i was some rich kid that wanted the doubler cause its "the cool thing to do" or somethin. again i apoligize

 

79bigbronco

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I have been running 35's with 4:10's for 21/2 yr's, I think they are a perfect combo for a good trail/daily driver rig. 70mph, will probably be a little scary in a lifted bronco but 60 I do every day on the freeway thru town, just depends on how tight you set your sway bars, I'm driving with none right now & find it a little loose in the rear, I have 8" frt. 10" rear, I also have been considering a doubler as the 205/c6 dosn't have that low a reduction, but am very concerned with driveshart angles, they're steep now. for what you are intending to do with your truck, have you thought about moving your axle back & extending your wheelbase? Very interested in your progress, please keep use posted. :)>-

 
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texan79&96

texan79&96

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im only plannin on 4" of lift and fenders cut just below lower racetrack trim so i dont think that driveshaft angle will be too big an issue for me. they said thier newest doubler came out to overall length as a standard 203, but i dunno if that means that the driveshafts are in the same place as with a 203?? ive got the c6 203 and around 4" lift. they guy i got it from said it was a used rancho lift so its either 3 or 5" ive got 4 3/4" drop brackets so im guessin its the 5 but its really old so i think its sagged but the stock driveshafts look just fine. im just wondering about things like if ill have to move my console for the shifters and if theres gonna be trouble re reouting the exhaust and stuff. ill call them down the road when i get ready for that part of the project. ill let yall know what i find out.

 

Broncoholics

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have you seen the new off set-u-joint for steep driveline angles? They allow an additional 4-6" of drop before it binds.

 

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