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04-13-2007, 06:36 PM
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#1 |
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Senior Member
 
Join Date: Jan 2005
Location: Claremore, OK 74017
Posts: 2,640
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TH350 -vs- TH400 Tranny
Can someone give me the pros and cons of each. Currently have a TH350 in my 69 SWB, but have a couple 400's laying around and was wondering what that would give me.
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68 Short Stepside C-10 69 SWB C-10 70 Flatbed C-20 70 LWB C-20 BB402 70 LWB C-10 CST 70 LWB C-10 CST 71 Short Stepside Cheyenne C-10 72 LWB C-10 72 Blazer 4x4 4spd 95 Jeep Cherokee 4x4 |
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04-13-2007, 06:43 PM
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#2 |
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GEARHEAD
Join Date: Jan 2007
Location: CENTRAL,PA
Posts: 2,284
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Re: TH350 -vs- TH400 Tranny
Strength mainly IMO The 400 is a stronger tranny. I have a pro's and cons link somewhere, I will try and find it for you. quicker than trying to type like a chicken.
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72 SWB 2WD MY PROJECT 72 LWB 4X4 FUTURE PROJECT SUBSCRIBE HEREBOARD VENDORS HERE NORWOOD MEET SURVIVOR! 
Last edited by RACINJASON22; 04-13-2007 at 06:58 PM. |
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04-13-2007, 06:47 PM
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#3 |
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Registered User
Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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Re: TH350 -vs- TH400 Tranny
TH400 has more drag than the th350,thus creating more heat. It is the strongest of the two. But the th350 is by far no slouch. If you have it, use it. JMO
-Lance
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------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT |
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04-13-2007, 07:01 PM
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#4 | |
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GEARHEAD
Join Date: Jan 2007
Location: CENTRAL,PA
Posts: 2,284
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Re: TH350 -vs- TH400 Tranny
Quote:
 With this no real need to change unless your after some real big power and such. This is not the link I mentioned but it's got alittle info on at least the gear ratio differences. I must have lost the link I had. Check it out. LINK
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04-20-2007, 05:19 PM
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#5 |
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Senior Member
Join Date: Jan 2005
Location: Claremore, OK 74017
Posts: 2,640
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Re: TH350 -vs- TH400 Tranny
So would you use it if you were going to do a lot of towing/hauling or had a bigger motor? Any gas mileage savings?
__________________
68 Short Stepside C-10 69 SWB C-10 70 Flatbed C-20 70 LWB C-20 BB402 70 LWB C-10 CST 70 LWB C-10 CST 71 Short Stepside Cheyenne C-10 72 LWB C-10 72 Blazer 4x4 4spd 95 Jeep Cherokee 4x4 |
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04-20-2007, 06:55 PM
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#6 |
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Registered User
Join Date: Dec 2006
Location: Rhode Island
Posts: 602
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Re: TH350 -vs- TH400 Tranny
No fuel mileage savings with a TH400, but if you're doing a lot of towing, it will live longer under the strain.
If it's performance you're after, then a TH350 can be built as a high perf tranny. But personally, if you're going to rebuild one or the other, then rebuild the TH400 and sleep well every night.
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69 C-10 SWB Fleetside 454/TH400 (For Sale) http://67-72chevytrucks.com/vboard/c...ct=1299&cat=12 70 El Camino 454 TH700 29 Model A 4-DR Sedan Deluxe |
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