700R4 to 4speed manual

[Swearingsailor6]

I measured the drive shafts and they are the same legnth...now to find out if the ujoints match up, or the splines out of the t-case match up to my current drive shafts....wish there were more hrs in the day

[NovaMan]

Originally Posted by Swearingsailor6

...wish there were more hrs in the day

I'll second that!

[Swearingsailor6]

I also wish that "work" didn't exhist, and i could just tinker with my truck all the time. now i work to pay off the gas companies to heat my house, provide electricity, and power my cars and trucks to get to work, so I can pay off the gas companies.....etc. etc. go on and on and on forever.

everything revolves around oil...but here I am making a truck that will use more of it....funny world we live in

[Swearingsailor6]

anyone know a part # for the clutch fork boot on the outside of the SM465 manual clutch?? I looked online and couldn't find it.....maybe im looking in the wrong place

[ridered333]

ill be picking up my parts truck for a 4-speed swap this friday the only thing about my parts truck tho is it has a 208 case and i want a 205 however i have one that was bolted to a th400 or ill just look for a new tranny

[Swearingsailor6]

My current truck has a 208 in it and I an just putting the one that was in the 3/4 ton in there.....I think it is also a 208?? not exactly sure and it doesn't say on the tag, but they look similar.

[Swearingsailor6]

sorry I misread your post, thought you wanted a 208...nvm! lol, what is the diff btw a 205 and a 208?? how can I differentiate between the too>??

[GreaseDog]

Originally Posted by Swearingsailor6

sorry I misread your post, thought you wanted a 208...nvm! lol, what is the diff btw a 205 and a 208?? how can I differentiate between the too>??

that's like saying whats the difference between and angus hamburger and a tofu hot dog! a 208 is a chain driven aluminum case that was only available with a slip yoke in the rear, though it does offer a 2.6X:1 low range, where the 205 is a gear driven cast iron cased monster with PTO outputs. it was also available in slip yoke or fixed yoke rear outputs, and offers a 2:1 low range.

[Swearingsailor6]

thanks for the insight! lol....guess I need to read up on this 205....

would the 83 3/4 ton I just bought and tore apart come with a 208 or a 205?? it has a slip yoke on the rear...come to think about it, the tag says the ratio is 261, so obviouslly from what you said, it is a 208...thanks for the help.

[GreaseDog]

fork boot PN: 330811 is the used in light truck applications from 73-78. if you're running a mechanical clutch setup, i dont see why this one wouldnt work for you.

[GreaseDog]

81+, if its not a 1 ton, it cant have a 205 from the factory. 81-87 = NP208, 88-91 = NP241

[Swearingsailor6]

Thanks for the information! Now what about splines on the rear slip yoke? would the two be the same from my 86 1/2 ton 700r4 to the 83 3/4 ton SM465 that I am stealing the tranny out of??I am using the tcase from the 83 and using the current 12bolt that is on my 86 for now until I can afford a lift then I will throw the 14sf on there and the 10bolt front (4.10 gears) thanks!!

[44gmcnewf]

http://www.novak-adapt.com/catalog/sm465_parts.htm

has a good diagram and lots of info on it

[GreaseDog]

the shafts will be different lengths. ideally, you could go to the junkyard, find a truck with a similar wheelbase, and the same transfer case/trans combo, and use the rear shaft from it. the 465 is considerably shorter than the 700R4, so the 700R4 shaft will be too short.

[Swearingsailor6]

That does have some good information, thank you for the link! I will be posting pictures tonight I think if I get a chance, or tomorrow morning....

[Swearingsailor6]

Thanks Greasedog for the PT#, I will be looking into it!

[Swearingsailor6]

would the driveshaft from the 3/4 ton work? or are the ujoints and such different??

[GreaseDog]

they should be close enough to work, though you may need a conversion ujoint.

[Swearingsailor6]

Thank you for the info, Im guessing a conversion Ujoint has the one size ujoint caps on 2 of the posts and the other size ujoint caps on the other...my terms are probably way off but i think I have an idea of what you are talking about. Now where would i pick them up??? any parts store?

[GreaseDog]

parts store with a knowledgable guy behind the counter. (read: NOT AUTOZONE)