700r4s 27 spline or 23?

[jeremybigs]

i have a 700r4 tranny that has a 27 spline rear shaft and am wondering if maybe its a 2 wheel drive version? i was told a d300 would bolt on to it so i was going to put the 231 crawl box to d300 on it but the 231 needs a 23 spline. if there is a two wheel drive and 4 wheel drive version of 700r4s are they 27 and 23 spline? if so can i get a 23 spline put it into a 27 spline tranny? or do i have to get a new tranny? thanks

jeremy

 

[jeremybigs]

nobody knows what spline these are?

 

[crash2]

A 2wd trans will have the output sticking wayyy past the area where the adapter would bolt to the tranny....

 

[Bobbo3234]

23 spline out put shafts can be purchased from companies the AA, JB conversions and more. I believe most if not all 700r4s are 27 spline. Mine has a conversion kit in it. If you want to run a crawl box you should have no problems, you should be able to find a 231 w/ 27 spline input. 27 spine outut of trans to 27 spline input on the doubler, 23 spline output of the doubler to the 23 spline input of the d300

 

[jeremybigs]

yeah i just did a ton of research but havent seen anything about a 231 that has a 27 spline input. problem is i have the stub shaft for the 231 to d300 and now relize the 231 wont go to the 700r4 and already got the d300. if you know of a 231 tcase that has a 27 spline what is it? i did see someone on a pirate board talking about there was a chevy 231 tcase from like a s10? maybe that would be 27 spline if it exists? i looked at the adapters for a 700r4 to become a 23 spline and there $400 bucks! not really what im wanting to do. anybody know of any other kinds of crawl boxes from a 700r4 27 spline input to 23 spline output?

 

[no excuses]

get a 231C HD from a S10/blazer mid 80's-90's ish. they came with a 700R4 and a 231 tcase. Make sure to get the factory adapter between the two also. I respnded in youre earlier thread about that, call up D & D machine and get there doubler. Its a easy bolt on conversion to double those up, way easier then the toyota doubler. Any questions PM me and I will be glad to try to help u out..

 

[Bobbo3234]

or if you have adapters to use a Jeep 231 you can just switch the inputs and put the 27 spline input in the Jeep 231.

 

[jeremybigs]

yup thanks guys ive figured it out now kinda scared me for i bit but got it figured out. ganna get a s-10 231 and my buddy who already has my stub shaft i need for the crawl box thinks we can switch the inerds and still make it goto the d300 and all will be good!

anyone have a broken s-10 231 tcase? just need the front half! thanks

jeremy

 

[junkyard jim]

Maybe sommeone knows for sure if the NP208C and 231 input gears can swap?