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73-87 Chevy _ GMC Trucks => Brakes, Frame, Steering & Suspension => Topic started by: 1980 gold on November 30, 2011, 05:08:05 pm

Title: manual to auto swap
Post by: 1980 gold on November 30, 2011, 05:08:05 pm: i ended up getting a real good deal on a turbo 400 to swap into my 87 swb. the guy gave me the adapter for my 208 case, flywheel, converter, dipstick, crossmember, mounts etc $200. i'm not gonna column shift it right away for now i bought the b&m unimatic floor shifter. if anyone hase pics of this one mounted can you post em so i can see approximately where it will fit best on the floor. also if anyone knows how i do the kickdown cable with the tbi 350? and if you have pics that would be great.
Title: Re: manual to auto swap
Post by: Captkaos on December 12, 2011, 08:12:55 pm: TH400 kick down is controlled by a solenoid. I am not really sure what else you are asking?
Title: Re: manual to auto swap
Post by: roger97338 on December 26, 2011, 03:29:19 am: I converted from a manual to a TH-400 too. I couldn't easily find the factory kickdown parts when I did the swap, so I opted for this Lokar unit. So far, so good.

http://www.lokar.com/product-pgs/throttlecables-kickdowns/tc-kd-pgs/th400kd.html
Title: Re: manual to auto swap
Post by: 1980 gold on December 26, 2011, 03:34:35 pm: hey thanks
Title: Re: manual to auto swap
Post by: jdl71 on December 26, 2011, 06:30:49 pm: Quote from: roger97338 on December 26, 2011, 03:29:19 am
I converted from a manual to a TH-400 too. I couldn't easily find the factory kickdown parts when I did the swap, so I opted for this Lokar unit. So far, so good.

http://www.lokar.com/product-pgs/throttlecables-kickdowns/tc-kd-pgs/th400kd.html

Are there different versions of the TH400? What exactly does this lokar kit do? My TH400 kickdown runs off manifold vacuum to a solenoid on the side of the transmission. The only parts you should need would be a vacuum hose with a bit of steel tubing and maybe a tee for the manifold.
Title: Re: manual to auto swap
Post by: Blazin on December 26, 2011, 10:10:54 pm: The kickdown on a TH400 is an electrical switch on the accelerator pedal.
Title: Re: manual to auto swap
Post by: fitz on December 27, 2011, 06:57:15 am: If your trucks an 87 with a TBI motor I believe the kickdown is controlled by the computer. Maybe you can retro fit the gas pedal switch like Capt and Blazing said.
Title: Re: manual to auto swap
Post by: bd on December 28, 2011, 12:25:29 am: For the detent use GM 1242101 or equivalent. The factory under-dash brackets and accelerator pedal arm should be compatible for a bolt-in, wire 'n drive (plug-n-play) experience. ;)
Title: Re: manual to auto swap
Post by: jdl71 on December 28, 2011, 04:59:47 pm: Quote from: Blazin on December 26, 2011, 10:10:54 pm
The kickdown on a TH400 is an electrical switch on the accelerator pedal.

Yeah, not sure what I was thinking. Vacuum modulator is what I meant.
Title: Re: manual to auto swap
Post by: 1980 gold on January 01, 2012, 09:46:39 pm: thanks for the input guys haven't been on the computer in a few days
Title: Re: manual to auto swap
Post by: johnhood on January 14, 2012, 08:39:50 pm: im not understanding this??? somebody fill me in my turbo 400 came out of an 87and all my kickdown is ran off of vacuum from the modulator off the side of the transmission when i first put the transmission in it wouldnt kickdown i hooked up the vacuum hose it kicked down what year transmission are you running?
Title: Re: manual to auto swap
Post by: 1980 gold on January 15, 2012, 05:29:16 pm: mine was from an 86 military blazer that had a diesel
Title: Re: manual to auto swap
Post by: johnhood on January 16, 2012, 02:23:18 pm: oh ok mine came out of a 3/4 ton 4wd truck w/ tbi