05-18-2017, 04:38 PM | #1 |
Registered User
Join Date: Apr 2017
Location: Sacramento, CA
Posts: 53
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Th400 New or rebuild
Should I send it to the local shop for rebuild with some upgraded parts or buy a new one? The quote right now is $1250.00 to have me take it to them and get a rebuild with "upgrades" I'm assuming upgrades mean premium parts.
This will be used in my 71 with a 402, both the engine and trans are the originals. The engine will have mild work at some point (375HP) range. Anyone here in/near Sacramento, CA that can do the work or perhaps I can even ship to someone? Or purchase new from you? Let me know thank you!
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-71 C10 long bed, 402 -91 Camaro Z28, B2L 350 -96 Tahoe 2 door 2wd -15 Tahoe LT -16 Lexus RC 350 F sport |
05-18-2017, 08:30 PM | #2 |
Senior Member
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
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Re: Th400 New or rebuild
Building a 100% new TH400 costs a small fortune.
A stock rebuilt TH400 will handle 375 hp. My base TH400 is $750, No core needed. Includes...... 4L80E Forward Hub (Stronger than a TH400 piece) Rollerized Output Dual Fed Direct Clutch 4L80E spirolock intermediate sprag retainer Sonnax Boost Valve & PR spring Pump gears Borg Warner hi energy forward & intermediate frictions Raybestos face grooved hi energy direct frictions New lo/reverse band All new bushings, seals & filter Stock rebuilt converter, $100. Upgrades if you plan on more power in the future.... 4L80E 34 element sprag & direct drum, $200. HD spirolock intermediate clutch snap ring, $16. High rate direct clutch return springs, $25. Not Trans Go junk! Reverse servo shim, $26. 190psi PR Spring These upgrades will allow for up to 600 hp. Above 600 hp, A billet Input shaft, Forward Clutch Hub & 215 psi PR spring are recommended. I do have some super low mileage Jaguar Cryo Treated input shafts living in 800hp trans brake cars......But with entry level Billet shafts costing around $200 now, Roll with billet if needed. PM me if interested. |
05-18-2017, 09:32 PM | #3 | |
Registered User
Join Date: Apr 2017
Location: Sacramento, CA
Posts: 53
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Re: Th400 New or rebuild
Quote:
Awesome, thanks for the reply. I'll shoot you a PM momentarily.
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-71 C10 long bed, 402 -91 Camaro Z28, B2L 350 -96 Tahoe 2 door 2wd -15 Tahoe LT -16 Lexus RC 350 F sport |
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05-19-2017, 11:29 AM | #4 |
Senior Member
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,217
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Re: Th400 New or rebuild
clinebarger is the one to go with !! he really knows his stuff
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David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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