mud truck...465 or th350

[chevyguybc]

good thread,

i have a th350 /np205 combo

will the manual 205 shifer and **** work on 205..

also, i have a rebuilt 2wd trans

how do i convert it to the 4x4

i dont have a couple, i need a 4wd output shaft and couple?


also th350 doesnt rob power like th400, 9 ive got about 350hp, and a 2200 stall, my truck should rip

thanks

 

[broncoman6524]

true the 400 robs more power but it also has more strength...

to make the tranny 4x4 you just have to pull your tailshaft nad get an adapter plate.

 

[RootBreaker]

I have owned both...

350/t400/np203/d44/14bff/3.73-33's
I had a turbo 400 in my truck... with a b&m shiftkit.. cheap kit... you drill holes in this plate.. the bigger you drill the harder the shift. they had a minimum and a maximum.. we went 1 smaller than the max...
biach would rip your head off when it shifted... was soooooo nice...
mud was ok.. trails were ok.... uphill sucked...


so I went and bought a full truck running chassis...
350/smc465/np205/d44/14bff/4.56-33's

boy this was sweet.. no problems in mud.... yeah ya gotta shift and makes it more complicated... but the power control was waaay better....
before my auto would bogg down and not downshift or it would but my r's werent up high enough.....

now all I know is if I have any issues.. clutch in.. tach it and dump it... hammer time....

I just like the full power control I have with the stick....

my personal opinion after owning both is manual.... one of my eventual swaps will be a nv5600... need overdrive ..... nv4500 is a thought but if gonna do a swap go big or go home...


I will say if you do convert to a manual... do not expect to do anything but the hydraulic clutch conversion... the spring in the manual pedal is a bear... but the hydro is sooooo much better....

 

[howdiy]

im not sure whether its got th 400 or 350. its blown (sunk ) when i looked at the truck all i really looked at was the axles. thats mainly what im buying it for, i was daydreamin in auto one day and it clicked. hell i may be a 400


its a 79k20, 400sbc 14b adn 44. not sure of case

i agree 4.10s with 38s would be a dog....but this will be a pretty light truck, and well see. hell i may get lucky and the axles actually have 4.56s.

ah well we shall see. my whole goal with the auto was...NO clutch hookups or burning up cluthces, and only like a 400+ rebuild...

I have 4.10's and 39.5's and it's not a dog.

 

[chevyguybc]

I have 4.10's and 39.5's and it's not a dog.

i bought my axles and luckily they were 14 bolt, i paid 1350 canadian front and rear 1 ton...

i have 38s, 4:56s, th350 shift kit, np205,., yes i have the rare combo

ive also had 4:10s with 38s, it was great, 350 350hp, 4 speed 205, rocked it

now im going auto, because this truck is gunna be a dual purpose rig

 

[howdiy]

I think the 4.10s are just enough. When I punch it lights them up in the dirt. I don't do any crawling. At most I will be doing tennesee trail riding

 

[chevyguybc]

4:56 is definatly the ultimate

i know my truck wont be sluggish

 

[howdiy]

I'll probably use those when I get my 3/4 axles.

 

[simplysigns]

Think of strength (mid 80's & older).....Strongest at the top

• 400...... 31 spline
• 365...... 31 spline
• 350...... 31 spline
• 365...... 10 spline

Sorry but these are facts as far as strength.​

 

[chevyguybc]

th350 to np205 27 spline is weak, how so

 

[Big Blzn]

If it's a DD also get the TH350 rebuilt. Why don't you also have the 400SBC gone through or rebuilt should do a lot better than the 350SBC in all regards. Much better.


Hoby

 

[chevyguybc]

well the 2wd trans i have is rebuilt, but it does not have a shift kit..

id like to convert it but i need the output shaft, and coupler...

also my 350 has about 350hp, with flowmasters

it pulls hard

 

[chevy wrangler]

Think of strength (mid 80's & older).....Strongest at the top

• 400...... 31 spline
• 365...... 31 spline
• 350...... 31 spline
• 365...... 10 spline

Sorry but these are facts as far as strength.​

365???

 

[YZEATER]

Think of strength (mid 80's & older).....Strongest at the top

• 400...... 31 spline
• 365...... 31 spline
• 350...... 31 spline
• 365...... 10 spline

Sorry but these are facts as far as strength.​

what exactly are you talking about?

 

[onetonbb74]

Think of strength (mid 80's & older).....Strongest at the top

• 400...... 31 spline
• 365...... 31 spline
• 350...... 31 spline
• 365...... 10 spline

Sorry but these are facts as far as strength.

Sorry but IMO a 32 spline (not 31) sm465/205 combo is stronger then a th400/205 combo.​

 

[broncoman6524]

welp its decided...im runnin the 465 with the 205, possibly a 203/205 doubler. (if funds skyrocket )

 

[atho]

Think of strength (mid 80's & older).....Strongest at the top

• 400...... 31 spline
• 365...... 31 spline
• 350...... 31 spline
• 365...... 10 spline

Sorry but these are facts as far as strength.​

Those are some totally incorrect facts, bud. Best do some reading up yourself.

TH400's have 32 spline, 31 spline is Ford stuff.
SM 465 never had 31 either...that is Ford, again.

TH350 never had 31 or 32...only 27, with a drive sleeve.
Most SM465 are 10, and this is about the only thing you got right.

Stock for stock, I'd put my vote on a '465 for strength over any auto any day of the week. This is stock. Of course, I can't prove it, no one can because these trannies are all old as hell.

I love being able to select gears, if you don't want to have to run the clutch as much rig up a manual throttle so the cable runs up the shift lever with a PTO style knob. My dad's old '74 International was set up that way, it had a PTO that was on the side of the tranny, you could control the engine rpm for whatever the PTO was running (wasn't connected to anything). It also made a nice hillbilly cruise control, and you could set it so that it would barely crawl forward in 1st.

So again, I vote stick.