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11-05-2014, 11:58 PM
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#1 |
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Registered User
Join Date: Sep 2014
Location: Panther City ,Texas
Posts: 7
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72' tbh400 problems
Hey fella's new guy here with a quick question!
I recently Purchased a 72' lwb (305/400) from a buddy. Was a daily go getter for him till one day he drove home ,then went to leave the next day and the truck had no want for the forward motion only reverse. Can someone tell me what could possibly Be the problem please? Easy fix or new trans needed? Thanks in advance! |
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11-06-2014, 12:02 PM
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#2 |
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Registered User
Join Date: Apr 2012
Location: Covington, GA
Posts: 386
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Re: 72' tbh400 problems
Had my TH350 grenade that way; not an easy fix. Plan on replacing or rebuilding the transmission.
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Matt Cramer 1972 Chevy C10 - 4.8 swap, long bed, and maybe one dent free body panel somewhere - SOLD 4.8 LS build thread |
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11-06-2014, 02:09 PM
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#3 |
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Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,142
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Re: 72' tbh400 problems
Did you check the fluid level? Sometimes if the modulator goes bad it drinks all the fluid with no leak.
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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11-06-2014, 08:08 PM
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#4 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: 72' tbh400 problems
One possibility is the valve shift linkage is not moving the shift valve, (if the fluid level is ok). Other possibilities are more serious such as low oil pressure and problems with the forward clutch.
Jim
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1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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