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JimKshortstep4x4 · 04-30-2007, 07:17 PM

The TH-400 does not use a "kick down cable" but instead uses an electric detent switch to down shift the transmission. The switch is located on the left side of the TH-400 and is activated by a carb mounted kickdown switch similiar to the one pictured. In 1971, the kickdown switch for the TH-400 was moved inside the cab, unlike the 70's back.

The upshift can be adjusted some by adjusting the vacuum modulator but the shift points should be checked prior to adjusting the modulator.

Jim

04-30-2007, 07:17 PM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Kickdown cable? The TH-400 does not use a "kick down cable" but instead uses an electric detent switch to down shift the transmission. The switch is located on the left side of the TH-400 and is activated by a carb mounted kickdown switch similiar to the one pictured. In 1971, the kickdown switch for the TH-400 was moved inside the cab, unlike the 70's back. The upshift can be adjusted some by adjusting the vacuum modulator but the shift points should be checked prior to adjusting the modulator. Jim Attached Images __________________ 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