3 speed OD pics PLEASE! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**tkeduk8r** · 05-27-2012, 01:52 PM

Some of you may have seen this 68 c10 that I have been parting over the past three weeks LINK and noticed that fact it has a factory 3 speed OD transmission. The 307 2bbl had been replaced with a 250 I6 at some point and the OD was disconnected. I have no idea how it should be hooked up and what it should look like. I have been taking care of 20 wk old daughter today and sat down with my 68 service manual to see just exactly this trans works and it installed. The service manual does a great job explaining, but not a very good job showing linkage and wiring harness installation and operation. Can we strat a thread on reference pics on how these trucks with the OD option look under the hood and under the truck so anyone that would like to upgrade to one of these units could use as a template on how to correctly install one???? Can be for both the I6 and V8 installs.... I know htis is a rare option, but I cant be the only one who has looked at using one of these units in a build. If you have any pics please post and we'll see where this goes.... Thanks in advance...
--Mike

CG · 05-27-2012, 02:13 PM

There are several threads on this. Pictures of installs, rebuilds, under hood and under dash pics. Not sure what you would put in the search though. Im sure others will chime in with links for ya.

I think there are pics in my album of some of the OD stuff.

05-27-2012, 01:52 PM	#1
tkeduk8r Senior Member Join Date: Apr 2001 Location: Alexandria, MN Posts: 1,462	3 speed OD pics PLEASE! Some of you may have seen this 68 c10 that I have been parting over the past three weeks LINK and noticed that fact it has a factory 3 speed OD transmission. The 307 2bbl had been replaced with a 250 I6 at some point and the OD was disconnected. I have no idea how it should be hooked up and what it should look like. I have been taking care of 20 wk old daughter today and sat down with my 68 service manual to see just exactly this trans works and it installed. The service manual does a great job explaining, but not a very good job showing linkage and wiring harness installation and operation. Can we strat a thread on reference pics on how these trucks with the OD option look under the hood and under the truck so anyone that would like to upgrade to one of these units could use as a template on how to correctly install one???? Can be for both the I6 and V8 installs.... I know htis is a rare option, but I cant be the only one who has looked at using one of these units in a build. If you have any pics please post and we'll see where this goes.... Thanks in advance... --Mike __________________ 63 C20 2WD, 230/SM420/4.11 73K 68 C30 dump truck, 327,SM425,4.56 66K original 68 C10 2WD SWB Stepper, 250/3-tree/3.73 66K.... Wifes 68 Buick Skylark Custom Conv., 350/TH400/2.56 In our family since '79 69 GMC 1500 SWB 2WD, 350/TH350/3.73 posi... 70 K10 SWB 4X4 4-sp,ps, pb, tilt, buckets, console, sliding back window (Need AC parts) WIP 72 Chevy K20 4x4 350/350/205/4.56 donor 72 Vette 350/M21/3.70 posi, triple black and super fast 84 Olds Cutlass Brougham 350/2004r/4.11 was Dad's

05-27-2012, 02:13 PM	#2
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 20,035	Re: 3 speed OD pics PLEASE! There are several threads on this. Pictures of installs, rebuilds, under hood and under dash pics. Not sure what you would put in the search though. Im sure others will chime in with links for ya. I think there are pics in my album of some of the OD stuff. __________________ … … … … … … … … ... … … … … … … … … … … …



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