FJ40 4-speed tranny to chevy 350 bellhousing

nickk · 11-02-09, 07:51 PM

Hi, I have a toyota 4-speed H41/H42 in my FJ40 which I am trying to mate to a chevy 350. I'm trying to find out what bellhousing will work or can be modified to work with the 4-speed. Thanks for any info...

Downey · 11-02-09, 08:20 PM

Both AA and Downey make a 4 spd bellhousing adapter. Downeys out of business, but I do have one only left. PM me if interested.

lone gunman · 11-02-09, 08:55 PM

in case you don't know, AA = AdvanceAdapters.com | Engine & Transmission Conversion Adapters - Advance Adapters

bikersmurf · 11-02-09, 10:12 PM

I've had a 300 hp 350 on front of TLC trans for 13+ years now. I'm not mean to it, but it has never given me any problems. I like its 360 degree design.

Combat Chuck · 11-02-09, 11:24 PM

Quote:

Originally Posted by Downey

Both AA and Downey make a 4 spd bellhousing adapter. Downeys out of business, but I do have one only left. PM me if interested.

I have the AA kit in my truck (PO install) and it's pretty crap-tastic, in my opinion. AA makes a good product, don't get me wrong, but it just seems so cheap, and incredibly over-priced. Also AA just shakes me up because they don't specialize in any one make, they focus on getting decent all-around products, instead of curtailing the specifics to LC's, which is (or was) Downey's forte.
If he's offering his last adapter, leap on it, and don't look back.

shelfboy1 · 11-03-09, 11:55 AM

ive used downeys adapters and parts for many years and except for the holley they sold years ago they have good stuff.

Mark W · 11-03-09, 12:07 PM

AA adapters Crap? LOL... you have GOT to be kidding. The have indepth knowlege of more swaps than most have ever considered, fantastic customer support and a willingness to incorporate customer feedback into their product... and this is a BAD thing?

Personally I prefer the AA bellhousing adapter Because it *IS* open on the bottom. Just like the Toyota unit and the old school heavy duty Chevy stuff. Makes dealing with clutches much easier. I hate the 360 degree style of bellhousing myself.

Mark...

Pin_Head · 11-03-09, 02:58 PM

The old school adaptor is a 1/2 inch plate or spacer strips to space the tranny away from the bellhousing and an aluminum ring bolted to the 4sp bearing retainer that fits into the GM bellhousing. I have no idea how well it works, but I have seen a few of them. They may be home brew.

Mark W · 11-03-09, 04:03 PM

I have seen a couple of these. I think I have one around somewhere. They were commercially produced. Not in production by anyone any more though. A couple of guys I knew had problems keeping then tight and secure. In one case it lead to catastrophic separation of tranny from Bell housing on the trail. This may not be indicative of the the concept. Might have been a problem with their plates or even their installation.

Mark...

Combat Chuck · 11-03-09, 06:40 PM

Quote:

Originally Posted by Mark W

AA adapters Crap? LOL... you have GOT to be kidding. The have indepth knowlege of more swaps than most have ever considered, fantastic customer support and a willingness to incorporate customer feedback into their product... and this is a BAD thing?

Personally I prefer the AA bellhousing adapter Because it *IS* open on the bottom. Just like the Toyota unit and the old school heavy duty Chevy stuff. Makes dealing with clutches much easier. I hate the 360 degree style of bellhousing myself.

Mark...

I wasn't trying to bash AA, they do make good products, I just don't care for the cheap-looking adapter plate the PO slapped into my rig. Nothing about it justifies, in my mind, paying 500 bucks for it. (and the fact that he didn't use any one type of bolt, just whatever happened to be on hand, ugh.) I do like some AA products, and they're just about the only thing out there worth owning, but if I had to choose between AA Or Downey, I'd go for Downey.

Tinpigy · 11-04-09, 01:48 AM

My plan is to use the AA Ranger Torque splitter OD. Plenty strong, moves engine forward 7 1/2", right where it needs to be. $$ but 27% OD for the long ride to and from the trail, unless you can find one used. I have not been so lucky as to find one used myself. I will eventually spring for new.

aggiecruiser · 11-04-09, 06:35 AM

I used a product from AA that I am very happy with thus far. It is the Mark's Adapter. It allows the use of the OEM bellhousing. The Mark's adapter fits between the OEM bellhousing and the SBC. It allowed me to use the old bellhousing frame mounts. I guess one detriment in some people's mind is that it limits the position of the motor in the engine bay. But mine seemed to shoe-horn in alright. it was a fine balance between fouling the stock shifters against the tranny hump (when shifted to 4L) and clearance with the steering shaft on the Saginaw.

FWIW.

-Chris