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700r4 to sm465

zukking01

zukking01

Registered User
I have a 4.3 with a 700r4 and a adapted np205

I want to go with a manual trans and need to know exactly what is involved. Looking at getting a sm465 and a matching case. I dont want to buy expensive adapters. Do the sm465 already come with the bell housing adapter to mate it to the 4.3? What cases come behind the sm465 and what would be the best option as far as reliability and fixed yoke. I am not concerned with lower gears or dropping tons of coin into a case, I want it to be good from the start.

List of parts would be??

Sm465 trans with bel housing
Transfer case
Clutch setup( how hard is this to install) Samurai was a cable clutch and now is a b&m floor shifter with all cluth parts removed

I am pretty decent with adapting parts in. Ths will be going in a LWB samurai that I put a TBI 4.3 in already. What am I missing?
 
jsudar

jsudar

Well-Known Member
Location
Cedar Hills
I'm not a super chevy guy, but I'm pretty sure most any bellhousing you find on an SM465 from a chevy should fit. Some of them were double drilled to adapt to small and big blocks, but just be safe find one that was behind a small block.

Your biggest challenge might be finding a flywheel, not nearly as many 4.3l's came with manuals behind them as automatics. I don't think you can use a SBC flywheel because the 4.3l is balanced differently, but don't quote me on that.

All the SM465s I played with used a mechanical clutch linkage, so it should be pretty easy to make a samurai cable work. I have only seen NP205s and 203s behind SM465s, but they used those transmissions in everything, so I am sure you can find some other oddball setup. SM465/NP205 is the most common. I have an SM465 (in bad shape) with the t-case adapter for an NP205. pm me if interested.
 
zukking01

zukking01

Registered User
Anybody know if the v8 flywheel will fit on a 4.3? from what I understand mine is a 93 so it has a balance shaft with vortec heads and a TBI intake, Dont know if this makes a difference but I wanted to make sure it will work for my needs.
 
mbryson

mbryson

.......a few dollars more
Supporting Member
Location
Bountiful, land of rocks
Chevy bellhousings are all the same between big and small blocks. From what I understand, the bellhousing config is even the same until the LS motors? Big and small block will bolt up unless you've got a 60* V6 or a BUICK/Olds/Pontiac motor (BOP).

You should be able find a SM465 EASILY with a 205 already attached to it. I believe the input on the manual 205 is 10 spline and the auto would be the 27 spline that you'd currently have in your 700R4. I'm sure you can get some decent coin out of a running 700 with a 205 attached to it. Definitely enough to cover your 465/205 purchase.

I'm not real familiar with the 4.3L but with the balance shaft and whatnot, you'll definitely want to make sure you get the correct piece.
 
Crankylove

Crankylove

Crankylove
Location
South Salt Lake
mbryson said:
Chevy bellhousings are all the same between big and small blocks. From what I understand, the bellhousing config is even the same until the LS motors? Big and small block will bolt up unless you've got a 60* V6 or a BUICK/Olds/Pontiac motor (BOP).QUOTE]

Yep. I have swapped a few dozen Chevy v8's and assorted trannies, and all the v8 bolt patterns are the same from the 283 up to the 572 gm crate motors, as well as the 4.3 V6. The older v8's (265, 348, and 409 I belive) are different, but how often do you run accross one of those?

" From what I understand, the bellhousing config is even the same until the LS motors? "

That is my understanding as well, should be able to bolt a newer engine to older tranny, and older engine to newer tranny, although I have never tried it myself.
Click to expand...
 
zukking01

zukking01

Registered User
So I can bolt the sm465 to the 93 4.3 but what do I do for the flywheel? Do I use a 4.3 that is a 11"? or a 350 that is a 11 7/8"? Not sure on the measurment but from what I understand the 4.3 flywheel is slightly larger but if the bell housing is the same and I am using a larger transmission I would like the larger flywheel and clutch so I want to know if it will work.

Any confirmation of years that have a clutch cable setup?

Thanks for any help.
 
cheepin

cheepin

Active Member
Location
Parachute Co.
Try searching www.cok5.com this is a all chevy site.I believe you can use the flywheel for a S-10 with the 4.3.I would go down to Napa and look at the clutch for the 4.3 and 350.Compare the disks.If the spline count is the same then you should be goto go.
 
mbryson

mbryson

.......a few dollars more
Supporting Member
Location
Bountiful, land of rocks
cheepin said:
Try searching www.cok5.com this is a all chevy site.I believe you can use the flywheel for a S-10 with the 4.3.I would go down to Napa and look at the clutch for the 4.3 and 350.Compare the disks.If the spline count is the same then you should be goto go.
Click to expand...

I'd be more concerned about internally vs. externally balanced flywheels, but you'd obviously need the right splined disk.
 
zukking01

zukking01

Registered User
This is what I am talking about on size of clutch. From autozone website.


Flywheel info, 1993 s10 4.3L
Disc outside diameter 11", spline inside diameter 1 1/8", spline count 10, kit contains flywheel, clutch disc, release bearing, pilot bearing, alignment tool and spline lube

Flywheel info 1973 k5blazer 5.7
With 11" clutch Disc outside diameter 11", spline inside diameter 1 1/8", spline count 10, kit contains flywheel, clutch disc, release bearing, pilot bearing, alignment tool and spline lube

Flywheel info, 1993 k2500 3/4ton 5.7L
Disc outside diameter 11 7/8", spline inside diameter 1 1/8", spline count 10, kit contains flywheel, clutch disc, release bearing, pilot bearing, alignment tool and spline lube

I think if I used the 73 k5 blazer setup I found it will work with either clutch set but I think I would be better off with the larger clutch. I was hoping a normal clutch from a 5.7 would work but digging deeper I think it would not fit properly.
 
cheepin

cheepin

Active Member
Location
Parachute Co.
I think you'll be fine with the 11"er.Small motor/light rig.I would look for a stock chevy hyro bellhousing.Then use the chevy hydro clutch setup.
 
crazyyo

crazyyo

Active Member
Location
slc
what you doing with your b m floor shifter i am looking for one if your willing to part with it pm thanks
 
zukking01

zukking01

Registered User
cheepin said:
I think you'll be fine with the 11"er.Small motor/light rig.I would look for a stock chevy hyro bellhousing.Then use the chevy hydro clutch setup.
Click to expand...

Why would you reccomend using the hydro over the cable clutch? I had a cable in the samurai at one time so I thought it would be easy to get that setup again. Is the hydro a superior setup?



I will be giving the transmission buyer a chance to have the sifter before anybody else. FYI it is a b and m ratcheting shifter.
 
ricsrx

ricsrx

Well-Known Member
I looks to have 168 teeth, hard to count but i am sure its close.

The faint disc ring is 11"
 

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