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mud truck...465 or th350

Which tranny

  • sm465

    Votes: 40 65.6%

  • th350

    Votes: 12 19.7%

  • im nekkid!

    Votes: 9 14.8%
  • Total voters
    61
broncoman6524

broncoman6524

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chuluota Fl
sooo in this truck im building i cant decide whrether to run the 465 or the th350.

i already have the 465, and im buying a k20 for the axles which has a 350 in it but id need to rebuild it.

the truck will be on 38-40" tires. mild small block and 205, the axles have 4.10s

i know htat the 465 will spin the tires easier, but the whole clutch+mud= bad thing:haha:
 
Last edited:
wasted wages said:
T-400 :bow:
Click to expand...

i agree. a th-400 would be the best for mud. i have a 465 and i dont like it for mud cuz you are limited to one gear at a time unless your a ninja and can quickshift a 465. i dont know much about th-350's but i know you can beef them up. i dont know how they will hold up to 38-40's either. but think automatics are better for mud unless you have a high revving engine that can handle a wide range of speed in one gear (in the sm465).
 
are you doing trails with mud, or doing mud bog races? for trails and mud do the 465. for mud racing you want an automatic so it can shift without losing forward momentum. are you sure the k20 your buying doesn't have a th400, it should be?
 
Heres the thing about autos in the mud. You really can't shift them unless you have a heck of a motor. I have tried alot to shift and all that happens is the motor bogs down, I do know some people with built big blocks that shift their autos all the time. So it really depends on how built your motor is going to be. Small block I would say stick with the 465, even a stock big block I would stay with the 465. If you are going to build a big block then go auto but not a 350 a 400
 
i had a 600 hp small block w/a turbo 350 when i used to race and still didnt have enough gear to get on the rev limiter...needless to say i never got out of first and never had the speed like the other guys...to be able to shift you need a lot of gear or a nasty motor or both...
 
there have been times when i've been digging through a rutted mudhole and i've been very glad that i could keep the tires spinning and keep both hands on the wheel (ruts don't always lead where you want to go). a manual seems like it would be a pain in the butt in that same situation. but, i don't realy like them on the street, either. i'm lazy and do a lot of heavy stop-and-go traffic.
 
I loved my turbo 400 with b&m shiftkit in the mud.. line up and nail it... did good..

however I love my 465... I can hit the hole in L, 1 or 2nd.... then if it starts to bog or I have to stop... tach her up in L and shift...
I dont get what people mean by you have to shift fast... I dont... and have no problems.....

this wasnt super gooey... but goey on the bottom and water on the top...

cranberry bogg mud... mmmmmmm love that crap mud.... soo slippery too...

rootbreaker13.jpg
 
If your only running 4:10's with that big of a tire, auto isnt even in the equation, 465
 
im not sure whether its got th 400 or 350. its blown (sunk:doah: ) 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:rolleyes:

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...
 
ive had 2 79k20's, one with a 400/203 and the other 350/203, both were stock. Id run the 400 in the mud if your running 4.10's, the th350 ive had no luck with as they only last a year with my stock motor.
 
I say 350, cheap to buy cheap to rebuild. But as everyone has been saying a 400 would be the best. Sticks have their place, but all out muds not one of them.
 
if you make any pole and the letters and numbers SM465 cone into them everyone will vote for that no matter what because sticks are sick.!!!!
nuff said. i like an auto for crawling but for everyuthing else a stick wins
LUKE
 
broncoman6524 said:
sooo in this truck im building i cant decide whrether to run the 465 or the th350.

i already have the 465, and im buying a k20 for the axles which has a 350 in it but id need to rebuild it.

the truck will be on 38-40" tires. mild small block and 205, the axles have 4.10s

i know htat the 465 will spin the tires easier, but the whole clutch+mud= bad thing:haha:
Click to expand...
i never had a prob with my clutch in the mud.BUT i have had auto trans get over heated. i personaly hate automatics,but thats my opinion.:D even my DD is a manual.but JR is an auto and when it gets hot, no more spinny of the wheels.:rolleyes:
 
aut0 will give you better performance but i don't see a th400 option, I guess i'd rather hav ea 465 then a 350.
 
balterbuilt said:
aut0 will give you better performance but i don't see a th400 option, I guess i'd rather hav ea 465 then a 350.
Click to expand...

thats because the guy who has the truck said the parts truck has a 350 in it, but upon thinking and what yall have said it may in fact be a 400. i didnt even look very closely at the case/trans:doah:
 
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