Author Topic: automatic trans floor shift conversion  (Read 22707 times)

Offline txchainsawgogi

  • Junior Member
  • ***
  • Posts: 584
automatic trans floor shift conversion
« on: August 13, 2010, 11:54:50 pm »
How easy would it be to install a floor shifter? I found a few universal cable operated ones that look nice... I've always liked floor mounted shifters more appealing than on the column.


Is it a pretty easy mod, or would I have to go into the tranny at all?

78 C10 350 (auto 2WD)

Offline Layne

  • Senior Member
  • ****
  • Posts: 1023
Re: automatic trans floor shift conversion
« Reply #1 on: August 14, 2010, 12:01:34 am »
It's not too bad. I've got a B&M ratchet in mine; all I had to do was hook up the cable and adjust and mount it to the floor
77 c-10 - 77 400 86 700r4 "Emmy"
83 citation - 2.5L Four on the Floor!
88 sierra - reman 350 700r4 "Eleanor"
All normal practicality and rational money handling goes out of the window when it comes to my truck.

Offline team39763

  • Senior Member
  • ****
  • Posts: 1194
Re: automatic trans floor shift conversion
« Reply #2 on: August 14, 2010, 08:18:32 am »
It's a easy mod to do.  If I remember correctly, you just need a drill and something to make a bigger hole in the floor for the cable to go through.  Just follow the directions and you'll be fine.  I have the Hurst Promatic2 in my truck, it's a ratchet shifter.

Offline txchainsawgogi

  • Junior Member
  • ***
  • Posts: 584
Re: automatic trans floor shift conversion
« Reply #3 on: August 14, 2010, 08:53:12 am »
Awesome..ill add that to my list after paint, but before a sound system haha

Offline txchainsawgogi

  • Junior Member
  • ***
  • Posts: 584
Re: automatic trans floor shift conversion
« Reply #4 on: November 28, 2010, 08:24:46 pm »
So would I have to cut a large hole in the floor? I'm confused on how the cable attaches to the transmission.

Also, back up lights?

Offline Layne

  • Senior Member
  • ****
  • Posts: 1023
Re: automatic trans floor shift conversion
« Reply #5 on: November 28, 2010, 08:41:01 pm »
I cheated.... I left part of my column shift on and moved it down when I went to reverse  ;D You don't have to make a huge hole; just one large enough to go through the floor. The shifter will cover the hole.
77 c-10 - 77 400 86 700r4 "Emmy"
83 citation - 2.5L Four on the Floor!
88 sierra - reman 350 700r4 "Eleanor"
All normal practicality and rational money handling goes out of the window when it comes to my truck.

Offline txchainsawgogi

  • Junior Member
  • ***
  • Posts: 584
Re: automatic trans floor shift conversion
« Reply #6 on: November 28, 2010, 10:31:18 pm »
Haha well I want to completely clean up the column... I'm worried I'll have trouble with hooking up the reverse lighting!

Offline topp

  • Frequent Member
  • **
  • Posts: 498
Re: automatic trans floor shift conversion
« Reply #7 on: November 28, 2010, 10:48:24 pm »
I think some shifters, like B&M, come with reverse switch and a neutral safety switch
'90 Suburban TBI 350

Offline Psycho71

  • Registered Users
  • *
  • Posts: 239
Re: automatic trans floor shift conversion
« Reply #8 on: November 30, 2010, 08:34:20 am »
Not really a hard job at all. The instructions with the shifter will guide you through the whole process. As for reverse lights and neutral safety, just check the feature list on the prospective shifter. It will/should list any and all features the shifter has.

I installed the B&M Hammer in my '71. I mounted it in a custom console I built. But the process is the same as mounting it in the floor. No problems getting it to work.
There are two tools needed, duct tape and WD40. If it moves and shouldn't, use the duct tape. If it doesn't move and should, use the WD 40.

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19167
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Cody1018

  • Registered Users
  • *
  • Posts: 144
Re: automatic trans floor shift conversion
« Reply #10 on: November 30, 2010, 02:34:00 pm »
Anybody have any pictures of this conversion? Interested in how it looks.
1986 Chevy K10 Silverado

Offline Captkaos

  • OWNER and Administrator
  • Administrator
  • Senior Member
  • *****
  • Posts: 18454
    • http://www.73-87chevytrucks.com
Re: automatic trans floor shift conversion
« Reply #11 on: November 30, 2010, 02:36:56 pm »
bigblock73 has this in his truck:


Offline Psycho71

  • Registered Users
  • *
  • Posts: 239
« Last Edit: November 30, 2010, 07:23:23 pm by Psycho71 »
There are two tools needed, duct tape and WD40. If it moves and shouldn't, use the duct tape. If it doesn't move and should, use the WD 40.