Stock 4-speed behind a SBC in my "new" 40?

[belaw]

I've been lurking around this board for awhile, and finally purchased my first LandCruiser, a 1971 with a 327 Chevy engine and 4-speed transmission.

The engine-tranny swap took place before my seller purchased it, and all he knew was that the coversion was done by a shop in Durango, Colorado. However, he insists that the 4-speed transmission is Toyota.

I've climbed under the truck to look and can't find any identifying marks at all on the transmission. I also don't see any sort of adapter plate between the transmission and the 3-speed t-case. I've never heard of a SBC/stock 4-speed match, but that certainly doesn't mean much. Can someone please tell me what to look for in identifying this transmission????

One thing looked unique and might held with ID: the drain plug is at the rear end of the bottom of the tranny, just like on an oil pan, but there is a protrusion in the housing that puts it at a slight angle. I'd take pictures, but there's just not enough room to make them come out clear

Brian

 

[lone gunman]

if its a toyota 4sp and case the adapter will be between the engine and trans and probably from www.advanceadapters.com and should have there name on it some place but there are other makers too. try searching for engine adapters and you should find them. i have the AA adapter on my conversion.

and as far as the 4sp ID look in the tech links at the top of the page and you should find a list on how to ID it if i remember correctly. it covers most tranny's and cases.

 

[BladeRunner80]

Isn't just a special bellhousing that AA makes to mate the 4 speed to the 350?

 

[dgangle]

one could go into a long and involved synopsis of what this could be and what that could be with links and pictures and guesses to what you may have to all go around in circles with confligting info


OR

you could simply post a few pictures, we identify what you have and you get the correct answers you need the first time.

 

[belaw]

one could go into a long and involved synopsis of what this could be and what that could be with links and pictures and guesses to what you may have to all go around in circles with confligting info


OR

you could simply post a few pictures, we identify what you have and you get the correct answers you need the first time.

There's simply not enough room for me to take pictures that would show anything from underneath. I will pull the cover tomorrow and post some pictures of the top, hopefully that will help.

Thanks,
Brian

 

[Degnol]

https://forum.ih8mud.com/40-55-series-tech/68240-some-updated-pictures.html


Post #27 has a pic of my H42 out of the truck...HTH


ed

 

[belaw]

if its a toyota 4sp and case the adapter will be between the engine and trans . . . .

Duh, why didn't I think of that!

No markings, but it is obviously a conversion bellhousing.

 

[Downey]

Here are some hints on the conversion bellhousing:
(1) AA originally used a Lakewood scattershield machined for the Toyota 4 spd., it was originally painted red, and was a full 360 degree bellhousing (bottom end not opened). Then AA went to a cast aluminum bellhousing, bottom opened like a stock Chevy bellhousing.
(2) Downey originally used a stock cast iron Chevy bellhousing (bottom opened) and machined a 5/8" thick adapter plate onto it(which put plate between bellhousing and front of tranny). Then Downey went to a cast aluminum bellhousing, full 360 degree bellhousing (bottom end not opened), and the required spacing was now cast into the aluminum bellhousing.
The required adaption for 4 spd. tranny to 3 spd. T.C. is all internal, no adapter plate required.

 

[lone gunman]

Duh, why didn't I think of that!


just trying to help!

 

[belaw]

just trying to help!

Thanks for pointing me in the right direction guys. It looks like I have a Toyota 4-speed with a 2nd-generation Downey bellhousing.

The clutch is slipping badly and needs to be replaced. But what do I replace it with- Chevy parts, Toyota parts or some combination????

 

[lone gunman]

contact Jim ( downeyoffroad.com ) by phone or PM him he replied to your post above and listed his number. he's a great guy and answered all my questions when i sent him a PM. more then likely its a centerforce clutch set up but i don't know. my AA adapter uses the center force kit. you could search centerforce and see what i am talking about. good luck!

 

[Downey]

AA sells a Centerforce and Downey sells a Clutch Masters, both have been remachined to require less travel for disengagement. Others on this forum suggest all kinds of other stuff that may or may not work to varring degrees????? If I thought stock Chevy stuff actually worked, I'd be the first to give you Chevy part numbers!!!