Transmission/Tv troubles - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GMCSTEPS · 04-14-2015, 09:23 PM

Hi guys, I'm new to the forum and the world of these amazing trucks altogether. I recently acquired a 65 step side gmc with a later model 305 and a 700r4 auto tranny and so far I have been going through and cleaning up quite a few of the POs mess.

When I originally test drive the truck it was revving to what I thought at the time was excessive rpm before shifting to 2nd, but the guy assures me that since it is a 3 speed that level of rpm is normal, and not knowing any better I believed him. Now that it's back at my house I discover that it is in fact a 4 speed and rpm range close to 4500/5000 is absolutely not normal to shift gears. I never got it to shift into 3rd during the test drive bc we were just in a neighborhood, but now I've taken it out and tried to push it into third and have just gotten higher rpm but no shift from 2nd to 3rd.
I messed with the tv cable a bit and now all I have is 1st and reverse. It has a factory style tv cable with the "d" shaped button for adjustment but when pressed and moving the throttle there is no clicking into place like the guidelines say it is supposed to. Ive checked the governor gear and it looks brand new and the tv is connected to the cable at the transmission. So bottom line is, does it sound like it could be something out of adjustment that I can tweak and if so what, or is the tranny fried and I am in for a new one. Sorry for the long post but I know you guys can help, thanks in advance

**PGSigns** · 04-15-2015, 06:22 AM

A 700 will fry pretty quickly.I have done it when a tv cable broke. If you post this in the engine and drive train section you will get more help quicker. First thing to do is get a picture of the brackets and tv cable where it hooks tot he car so we can see if it has the correct parts. A miss match will cause problems. Also do a search on 700r4 in the engine section and there is a ton of threads on checking and setting the tv cables.
Jimmy

**The Rocknrod** · 04-15-2015, 11:04 AM

I found a PDF file that explains how to set up the Carb TV linkage if you want:
https://app.box.com/s/5kr0yd6la59jzac608fqreyat6kfyihm

04-14-2015, 09:23 PM	#1
GMCSTEPS Registered User Join Date: Apr 2015 Location: Houston TX Posts: 42	Transmission/Tv troubles Hi guys, I'm new to the forum and the world of these amazing trucks altogether. I recently acquired a 65 step side gmc with a later model 305 and a 700r4 auto tranny and so far I have been going through and cleaning up quite a few of the POs mess. When I originally test drive the truck it was revving to what I thought at the time was excessive rpm before shifting to 2nd, but the guy assures me that since it is a 3 speed that level of rpm is normal, and not knowing any better I believed him. Now that it's back at my house I discover that it is in fact a 4 speed and rpm range close to 4500/5000 is absolutely not normal to shift gears. I never got it to shift into 3rd during the test drive bc we were just in a neighborhood, but now I've taken it out and tried to push it into third and have just gotten higher rpm but no shift from 2nd to 3rd. I messed with the tv cable a bit and now all I have is 1st and reverse. It has a factory style tv cable with the "d" shaped button for adjustment but when pressed and moving the throttle there is no clicking into place like the guidelines say it is supposed to. Ive checked the governor gear and it looks brand new and the tv is connected to the cable at the transmission. So bottom line is, does it sound like it could be something out of adjustment that I can tweak and if so what, or is the tranny fried and I am in for a new one. Sorry for the long post but I know you guys can help, thanks in advance

04-15-2015, 06:22 AM	#2
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: Transmission/Tv troubles A 700 will fry pretty quickly.I have done it when a tv cable broke. If you post this in the engine and drive train section you will get more help quicker. First thing to do is get a picture of the brackets and tv cable where it hooks tot he car so we can see if it has the correct parts. A miss match will cause problems. Also do a search on 700r4 in the engine section and there is a ton of threads on checking and setting the tv cables. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

04-15-2015, 11:04 AM	#3
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Transmission/Tv troubles I found a PDF file that explains how to set up the Carb TV linkage if you want: https://app.box.com/s/5kr0yd6la59jzac608fqreyat6kfyihm __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?



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