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09-10-2006, 01:34 PM
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#1 |
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Senior Member
Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
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tranny adjustment
It apears my tranny th400 has an adjustable modulator on it It shifts now about 3500 rpm which way to I turn it to make it shift higher? And how much adjustment is in them? will i be able to get it to shift over 4000rpm?
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1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO |
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09-10-2006, 01:37 PM
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#2 |
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Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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Re: tranny adjustment
Clockwise to shift later. It will only change the shift points 3 or 4 mph.
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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09-10-2006, 02:58 PM
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#3 |
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Senior Member
Join Date: Feb 2005
Location: Maynardville, Tn
Posts: 3,030
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Re: tranny adjustment
Pull the govenor out and lighten the flyweights by removing metal from them either by grinding or drilling, be sure to take equal amounts from each to keep them reasonably balanced. It's trial and error but you can fine tune it to your liking.
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SEMA Network- Protect our Hobby! 71 C30 in pieces, starting to come together. Click here for A Place For Tennessee Truck Enthusiest To Meet |
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09-11-2006, 01:53 PM
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#4 |
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Registered User
Join Date: Jan 2000
Location: ca
Posts: 1,110
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Re: tranny adjustment
they also make governor modifier kits with assorted weights and springs to play around with.
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68 short step, 406/700r4, 9" w/discs. |
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