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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: mach1mustang351 on April 08, 2011, 11:49:59 pm

Title: 700R4 Swap Questions
Post by: mach1mustang351 on April 08, 2011, 11:49:59 pm
Hello.  I have been searching for a while and I can't find it.  I was wondering if there is an issue hooking up the shift column linkage when swapping the T350 to a 700R4.  Are the detents in the shifter column able to work with the extra shift position of the overdrive trans??  Also will the T case shifter have to be modified after the swap??  Thanks
Title: Re: 700R4 Swap Questions
Post by: Irish_Alley on April 09, 2011, 12:24:20 am
Thought you had to switch columns also
Title: Re: 700R4 Swap Questions
Post by: HAULIN IT on April 09, 2011, 03:11:12 am
There are no "detents" in the column...The shifter just slides freely through the arch of motion. The detents that you feel are in the transmission. A roller assembly rides over a toothed paw.
Some guys have said they couldn't get Low 1 when changing from a TH350 to the 700. I'm not sure if there are something like cab sagging issues that may be involved. I didn't have any trouble when I did mine...I just tweaked the z-bar a bit to clear the header & have all gear positions.
I'm not a real 4x4 expert so someone else can correct me if I'm wrong, however the transmission output shaft is the same spline & the 4 tail housing bolts are the same pattern...so if you have a 4x4 700, I'd guess it's a go. Hope this helps, Lorne 
Title: Re: 700R4 Swap Questions
Post by: Irish_Alley on April 09, 2011, 04:00:28 am
haulin is right about the output shaft and the adapter plates look similar but not sure. dont know what i was thinking about the columns but now since he said that it makes more sense that way