Bmsjax
Well-Known Member
I picked up a BB 727 but it has a solid yoke instead of i slip yoke like the SB 904 had. Is this gonna need to be changed to a slip yoke? Can that be done?
Would I need ANY 727 or does it have to be a BB one? Would it be better to just find a correct tail shaft 727? The one I have was part of a package deal so i'm not really loosin out on money...
Any 727 car or light truck SB or BB trans. will work if it's the right year. The front spline angle on the output shaft was changed twice in the run (66-75, 76-89, and 90 up). You need to identify what year trans. you have and find an output shaft for the correct year.
www.wittrans.com sells all the small pieces pretty cheap if you don't find them locally.
Their pricing looks really good! thanks! so I am guessing I pretty much need everything from the output shaft to the right of the schematic? Anything in there interchangeable so I wont have to get it? (speedo parts, park gear, gov) I guess I could always return what I dont need. I'd like to do it myself but there is a good trans shop here I can take it to if need be.
The 440 it was bolted to was a '74 but it came outta a '81 motor home. Are the casting numbers that will give me a year or is it gonna be a best guess?
Also it had the torque converter with it, any ideas as to the stall speed in an '81 motor home? Worth sending out to get checked or just get a new one?
Sorry for the delay.
PK 4028425. I found something that says 76-77 8-440 H/Per. Sound right?
For the converter. The 440 is just gonna have a 4bbl(possibly aftermarket intake w/600 cfm edelbrock) and a cam 262/268 maybe. I want it to be daily driven when desired. Would that converter work? If not what should I be lookin for?
Dont have a counter weight now and not sure if I'll use one or not yet. But I think i'l get the one with the holes incase i do want to add it later. And i'll let you know if I need it. Thanks for all the help!
OK, so I get all my parts in yesterday. First off a note; everything inside is brand new its clean and beautiful so it leads me to think it was rebuilt and never really used to much till it was pulled. Tore the trans down, pulled the short shaft and started putting in the new shaft. All went well until I tried to put the front planetary gearset. It wouldnt slide on the shaft! After much research I found the only difference in the output shaft is the 66-75 shaft has 45 degree splines for the front planetary and the 76-93 has 37.5 degree splines. SO it looks to me that its stamped a 76-77 trans but whoever rebuilt it put in a 66-75 internals. Is this possible? It wouldnt cause any problems right? Besides giving me a head ache that is!
I saw that last night but forgot to double check and it looks like I got the wrong shaft! :violent1: It doesnt have the extra groove.... Now I gotta deal with return... grrrr... hahaha hopefully I can get the right one without too much effort.