chevy auto people - Pirate4x4.Com : 4x4 and Off-Road Forum

randy92782 · 08-09-2009, 01:20 PM

what are you running in your mud truck?? I have a 350 turbo/205 in my truck now but hate autos. Since it's already set up for one i wanna just keep it instead of changing it over to manual like i normally would do. I have 2 465/205's.

Anyways the tranny needs re-built but idk if i should just re-build the 350 or buy a 400 with the same spline output as the 350 to mate to my 205 and build that.

If you run the 350 what did you guys have done?? I know i'm gonna need a stall but have never built a automatic before for this.

The truck:'80 Chevy shortbed 410c.i sbc looking to get around 400-425hp
6"lift and 35-37's

dfl701 · 08-09-2009, 11:20 PM

if you hate your auto that bad then just go ahead and swap the 465 in. sounds like a no brainer. the 465 can handle some power

Corey Young · 08-09-2009, 11:31 PM

The TH400/205 has different input/output splines from the TH350/205. Sell the TH350/205 and put in a TH400/205.

randy92782 · 08-10-2009, 08:51 AM

Quote:

Originally Posted by dfl701

if you hate your auto that bad then just go ahead and swap the 465 in. sounds like a no brainer. the 465 can handle some power

Well i hate autos but my dad said i won't be happy with the manual. that's why i looked into building an auto. Plus i don't really like the gear change from 2nd to 3rd gear on the 465

Quote:

Originally Posted by Corey Young

The TH400/205 has different input/output splines from the TH350/205. Sell the TH350/205 and put in a TH400/205.

I may do this if i can even find one. Kinda figured they'd be different for some reason

Honky Lips · 08-10-2009, 09:14 AM

i have 550 hp and nitrous on my k5. 38.5 boggers, 4.11 gears. 208 xfer case. my th350 has aftermarket sprag gear, red clutches and bands. manual valvebody. ultrabell bellhousing. holding up fine so far.

randy92782 · 08-10-2009, 11:50 AM

Quote:

Originally Posted by dnchevyman

i have 550 hp and nitrous on my k5. 38.5 boggers, 4.11 gears. 208 xfer case. my th350 has aftermarket sprag gear, red clutches and bands. manual valvebody. ultrabell bellhousing. holding up fine so far.

Alright then. Another question for ya. How much you have put into your tranny? I had no limit but since i can't stay out of trouble i guess i do now

I'll just have to get a job now

TEX · 08-10-2009, 01:42 PM

Most guys I know are happy with their TH350's. That's what I run.

jenks21 · 08-10-2009, 04:59 PM

You shouldn't have any troubles with that 350 with what you are running. Get a good rebuilt kit, and I like to run the B&M transpack which turns it into a manual valve body with very firm shifts, holds any gear at any rpm and will down shift likewise. Quicker than you will ever shift that manual.

later
jenks

randy92782 · 08-10-2009, 05:19 PM

Right on. Thanks for the advice. Just saved me a little time and money there

Corey Young · 08-10-2009, 06:10 PM

TH350= aluminum case lugs wear out, TH400s are designed better and stronger.

TH350/NP205 adapters break, TH400/NP205 adapter is designed better and stronger.

TH350/205 use a internally splined coupler (27 spline), Th400/205 use no coupler and bigger splines (32 spline).

TH350s have a 4 bolt tailhousing, TH400s have a 6 bolt tail housing.

A TH350 is a 1/2 ton trans and a TH400 was used in the military 1 1/4 ton CUCV trucks.

TH350, no thanks!

randy92782 · 08-10-2009, 07:57 PM

Quote:

Originally Posted by Corey Young

TH350= aluminum case lugs wear out, TH400s are designed better and stronger.

TH350/NP205 adapters break, TH400/NP205 adapter is designed better and stronger.

TH350/205 use a internally splined coupler (27 spline), Th400/205 use no coupler and bigger splines (32 spline).

TH350s have a 4 bolt tailhousing, TH400s have a 6 bolt tail housing.

A TH350 is a 1/2 ton trans and a TH400 was used in the military 1 1/4 ton CUCV trucks.

TH350, no thanks!

Well shit! You guys just can't make up my mind. Appreciate the info there Corey. I think i'll probably never tear up the 350 but i'll keep my eyes open for a 400/205 just in case

the_white_shadow · 08-11-2009, 11:21 AM

Kind of off topic. Is there anyway to lengthen the stock kickdown cable on my th350 or do i need to purchase a new Lokar cable or somthing similar. Do I even need to run one?

my truck will see mud, trails and few rocks, and It will not be driven on the street.

Thread High Jack over.

nvrsatisfied · 08-11-2009, 12:03 PM

i ran a 465 with 411 gears on 38" tires. did great BUT the only draw back was at times you can really kill the momentum from gear to gear...that was my only complaint and the clutch slipped a few times..... the granny gear is great, also if you are going to do dirt drags i think it would do fine, but in a long stretch of slop you tend to loose a little momentum....i would go with a good or modified Th400, and start slap shifting. i have pulled my sm465 and put in a TH400, but i have also upgraded my project to different means.

just my opinion...........................................

jenks21 · 08-11-2009, 02:37 PM

Here is another thread along the same lines you can read through.

http://www.scotts4x4.com/forum/viewt...hp?f=59&t=8336

later
jenks

randy92782 · 08-11-2009, 04:00 PM

Quote:

Originally Posted by jenks21

Here is another thread along the same lines you can read through.

http://www.scotts4x4.com/forum/viewt...hp?f=59&t=8336

later
jenks

Thanks for the link. Pretty interesting stuff there

08-09-2009, 01:20 PM	#1 (permalink)
randy92782 fuck off Join Date: Nov 2007 Member # 102123 Location: Arcadia, MO Posts: 5,004	chevy auto people what are you running in your mud truck?? I have a 350 turbo/205 in my truck now but hate autos. Since it's already set up for one i wanna just keep it instead of changing it over to manual like i normally would do. I have 2 465/205's. Anyways the tranny needs re-built but idk if i should just re-build the 350 or buy a 400 with the same spline output as the 350 to mate to my 205 and build that. If you run the 350 what did you guys have done?? I know i'm gonna need a stall but have never built a automatic before for this. The truck:'80 Chevy shortbed 410c.i sbc looking to get around 400-425hp 6"lift and 35-37's

08-09-2009, 11:20 PM	#2 (permalink)
dfl701 Registered User Join Date: Jan 2009 Member # 126764 Location: Alabama Posts: 434	if you hate your auto that bad then just go ahead and swap the 465 in. sounds like a no brainer. the 465 can handle some power __________________ 83 k5 with typical rust

08-10-2009, 01:42 PM	#7 (permalink)
TEX Registered User Join Date: Apr 2000 Member # 603 Location: Missouri, USA Posts: 14,194	Most guys I know are happy with their TH350's. That's what I run. __________________ www.probog.com Thanks to: www.heiseroil.com Extreme Performance www.kmelectronics.com Bear Creek Auto Recyclers www.svrehorsepower.com

08-11-2009, 11:21 AM	#12 (permalink)
the_white_shadow Zeus of the Sluice Join Date: Nov 2007 Member # 103621 Location: East Bernard, TX Posts: 2,746	Kind of off topic. Is there anyway to lengthen the stock kickdown cable on my th350 or do i need to purchase a new Lokar cable or somthing similar. Do I even need to run one? my truck will see mud, trails and few rocks, and It will not be driven on the street. Thread High Jack over. __________________ --Alex-- 1982 Toyota 4x4 - The Dirt Squirrel: Phase II underway: 4.3L CPI, TH350, Marlin 4.7s/D300 doubler, D60/14B/5.13s, f150 leafs up front, artec 4-linked rear, Coilovers, blah, blah blah. Last edited by the_white_shadow; 08-11-2009 at 11:21 AM.

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08-09-2009, 11:31 PM	#3 (permalink)
Corey Young ______________ Join Date: Jul 2003 Member # 21622 Location: Washington State Posts: 3,326	The TH400/205 has different input/output splines from the TH350/205. Sell the TH350/205 and put in a TH400/205.

08-10-2009, 04:59 PM	#8 (permalink)
jenks21 Registered User Join Date: Jan 2008 Member # 106427 Location: Central Illinois Posts: 386	You shouldn't have any troubles with that 350 with what you are running. Get a good rebuilt kit, and I like to run the B&M transpack which turns it into a manual valve body with very firm shifts, holds any gear at any rpm and will down shift likewise. Quicker than you will ever shift that manual. later jenks

08-10-2009, 05:19 PM	#9 (permalink)
randy92782 fuck off Join Date: Nov 2007 Member # 102123 Location: Arcadia, MO Posts: 5,004	Right on. Thanks for the advice. Just saved me a little time and money there

08-10-2009, 06:10 PM	#10 (permalink)
Corey Young ______________ Join Date: Jul 2003 Member # 21622 Location: Washington State Posts: 3,326	TH350= aluminum case lugs wear out, TH400s are designed better and stronger. TH350/NP205 adapters break, TH400/NP205 adapter is designed better and stronger. TH350/205 use a internally splined coupler (27 spline), Th400/205 use no coupler and bigger splines (32 spline). TH350s have a 4 bolt tailhousing, TH400s have a 6 bolt tail housing. A TH350 is a 1/2 ton trans and a TH400 was used in the military 1 1/4 ton CUCV trucks. TH350, no thanks!

08-11-2009, 12:03 PM	#13 (permalink)
nvrsatisfied Registered User Join Date: Feb 2008 Member # 109601 Location: Oklahoma Posts: 72	i ran a 465 with 411 gears on 38" tires. did great BUT the only draw back was at times you can really kill the momentum from gear to gear...that was my only complaint and the clutch slipped a few times..... the granny gear is great, also if you are going to do dirt drags i think it would do fine, but in a long stretch of slop you tend to loose a little momentum....i would go with a good or modified Th400, and start slap shifting. i have pulled my sm465 and put in a TH400, but i have also upgraded my project to different means. just my opinion...........................................

08-11-2009, 02:37 PM	#14 (permalink)
jenks21 Registered User Join Date: Jan 2008 Member # 106427 Location: Central Illinois Posts: 386	Here is another thread along the same lines you can read through. http://www.scotts4x4.com/forum/viewt...hp?f=59&t=8336 later jenks