What is the 2nd linkage on my AT? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hAetWagon · 08-26-2008, 07:56 PM

I'm not going to pretend like I know, I just know it's there. I can select gears just fine. but there's this 2nd linkage.

oldblu65 · 08-26-2008, 08:27 PM

Perhaps this second linkage connected to the steering wheel lock ? I don't really know either !

Anthony Fremont · 08-26-2008, 09:23 PM

If you have a powerglide or TH-350, it's the passing gear/kickdown for when you stomp on it. It doesn't need to be hooked up on these transmissions, but you'll probably have to downshift manually when you want to pass. It hooks to the carburetor opposite where the throttle linkage connects.

hAetWagon · 08-26-2008, 11:14 PM

hmmm. It's on the driver's side of the transmission same as the throttle linkage. I remember having to set the kickdown in the past.. hmmm

low900rr · 08-27-2008, 01:52 PM

Quote:

Originally Posted by Anthony Fremont

If you have a powerglide or TH-350, it's the passing gear/kickdown for when you stomp on it. It doesn't need to be hooked up on these transmissions, but you'll probably have to downshift manually when you want to pass. It hooks to the carburetor opposite where the throttle linkage connects.

I dont think the tranny will work right if its not there and properly adjusted.

jchav62 · 08-27-2008, 02:18 PM

It will work okay, it just won't kick down. Th350's don't need the detent cable like 200's and 700's do.

hAetWagon · 08-27-2008, 07:12 PM

I wanted to be sure. The damn tranny slips in between shifts and I didn't know if that was a culprit.
I'll be honest and say I know jack about Auto Transmissions.

low900rr · 08-27-2008, 09:29 PM

I bought a fresh rebuilt th350 once and the detent cable was not set right and the tranny slipped. Took it to the place I got the trans from and 5mins later after the adjustment it didnt slip and shifted fine. Yes it was a 350 trans. I thought there was a pressure regulator that runs off the detent cable too???

**Captainfab** · 09-03-2008, 11:25 PM

If you have either a 200R4 or 700R4, the cable is called a TV cable, or throttle valve cable. This cable controls the pressure in the trans and if it is not adjusted properly you can burn up your trans. I think we need to determine which trans you have.....

hAetWagon · 09-04-2008, 04:59 AM

it's a 2 spd if that helps. I've been doing other stuff.

jchav62 · 09-04-2008, 09:29 AM

Quote:

Originally Posted by Captainfab

If you have either a 200R4 or 700R4, the cable is called a TV cable, or throttle valve cable. This cable controls the pressure in the trans and if it is not adjusted properly you can burn up your trans. I think we need to determine which trans you have.....

I agree...

kdrodworks316 · 09-05-2008, 03:45 PM

powerglide... my linkage is missing and mine works fine with out it, just have to yank the shifter to get to passing gear, but with a 6 banger and low gears, I aint doing much passing

MacAttack · 09-05-2008, 04:29 PM

Quote:

Originally Posted by Captainfab

This cable controls the pressure in the trans and if it is not adjusted properly you can burn up your trans.

D'oh!

I have a Powerglide in my Chevelle and have been driving it without the kick-down hooked up for about a year now! Please advise!

MacAttack · 09-07-2008, 12:15 AM

Stopped by HB Trans yesterday on the way home from work - "not good" was what the owner said - she goes in Monday for a review and if everything's okay, a reconnection of the kick-down and adjustment.

Wish me luck - this could get ugly quick for the Chevelle.

hAetWagon · 09-10-2008, 09:39 PM

So it is in fact the detent cable for my tranny which is a Powerglide. Now I just gotta find one.

MacAttack · 09-11-2008, 12:28 PM

The Blue Lives! It cost $255.00, and two days, but I don't care! Hardware came from Classic Industries - 300 feet from my guy at HB Transmission, and it shifts and 'kicks-down' perfectly. Now it shifts at about 30-35 mph instead of 15-20 mph and delays shifting as long as I like it if I mash the throttle from the light!

Big change in how the Chevelle drives.

08-26-2008, 07:56 PM	#1
hAetWagon Schlongbed MEMBER (heh)#15 Join Date: Jun 2005 Location: Sacramento Posts: 232	What is the 2nd linkage on my AT? I'm not going to pretend like I know, I just know it's there. I can select gears just fine. but there's this 2nd linkage. __________________ 82 Chevy Blazer 4wd.RIP 1965 Chevy C10,350V8 Get it reliable,then puttin' it in the weeds.. "Old truck, all new headaches."

08-26-2008, 08:27 PM	#2
oldblu65 Registered User Join Date: Jul 2005 Location: " The Scenic City " Posts: 189	Re: What is the 2nd linkage on my AT? Perhaps this second linkage connected to the steering wheel lock ? I don't really know either !

08-26-2008, 09:23 PM	#3
Anthony Fremont Registered User Join Date: May 2008 Location: houston, tx Posts: 549	Re: What is the 2nd linkage on my AT? If you have a powerglide or TH-350, it's the passing gear/kickdown for when you stomp on it. It doesn't need to be hooked up on these transmissions, but you'll probably have to downshift manually when you want to pass. It hooks to the carburetor opposite where the throttle linkage connects. __________________ ------------------------------- '66 GMC Custom Fenderside LWB '90 IROC - L98 '97 1200C Sportster

08-26-2008, 11:14 PM	#4
hAetWagon Schlongbed MEMBER (heh)#15 Join Date: Jun 2005 Location: Sacramento Posts: 232	Re: What is the 2nd linkage on my AT? hmmm. It's on the driver's side of the transmission same as the throttle linkage. I remember having to set the kickdown in the past.. hmmm __________________ 82 Chevy Blazer 4wd.RIP 1965 Chevy C10,350V8 Get it reliable,then puttin' it in the weeds.. "Old truck, all new headaches."

08-27-2008, 02:18 PM	#6
jchav62 1962 C-10 Join Date: Apr 2005 Location: Las Vegas, New Mexico Posts: 4,978	Re: What is the 2nd linkage on my AT? It will work okay, it just won't kick down. Th350's don't need the detent cable like 200's and 700's do. __________________ Joseph Chavez "See the USA in a Chevrolet!!" ......................_____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1962 C10 Shortbed Fleetside 327/th350 GV overdrive 1974 C10 Longbed Fleetside 350/th350 "The Trash Truck" 1999 Chevy 2500 OBS, Longbed 5.7/4L80E 4x4 2015 GMC Sierra SLE 1500 4x4

08-27-2008, 07:12 PM	#7
hAetWagon Schlongbed MEMBER (heh)#15 Join Date: Jun 2005 Location: Sacramento Posts: 232	Re: What is the 2nd linkage on my AT? I wanted to be sure. The damn tranny slips in between shifts and I didn't know if that was a culprit. I'll be honest and say I know jack about Auto Transmissions. __________________ 82 Chevy Blazer 4wd.RIP 1965 Chevy C10,350V8 Get it reliable,then puttin' it in the weeds.. "Old truck, all new headaches."

08-27-2008, 09:29 PM	#8
low900rr Registered User Join Date: Jul 2008 Location: Warren Mi. Posts: 136	Re: What is the 2nd linkage on my AT? I bought a fresh rebuilt th350 once and the detent cable was not set right and the tranny slipped. Took it to the place I got the trans from and 5mins later after the adjustment it didnt slip and shifted fine. Yes it was a 350 trans. I thought there was a pressure regulator that runs off the detent cable too???

09-03-2008, 11:25 PM	#9
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: What is the 2nd linkage on my AT? If you have either a 200R4 or 700R4, the cable is called a TV cable, or throttle valve cable. This cable controls the pressure in the trans and if it is not adjusted properly you can burn up your trans. I think we need to determine which trans you have..... __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

09-04-2008, 04:59 AM	#10
hAetWagon Schlongbed MEMBER (heh)#15 Join Date: Jun 2005 Location: Sacramento Posts: 232	Re: What is the 2nd linkage on my AT? it's a 2 spd if that helps. I've been doing other stuff. __________________ 82 Chevy Blazer 4wd.RIP 1965 Chevy C10,350V8 Get it reliable,then puttin' it in the weeds.. "Old truck, all new headaches."

09-05-2008, 03:45 PM	#12
kdrodworks316 KOFFIN DRAGGER Join Date: Jan 2008 Location: st.anthony Idaho Posts: 864	Re: What is the 2nd linkage on my AT? powerglide... my linkage is missing and mine works fine with out it, just have to yank the shifter to get to passing gear, but with a 6 banger and low gears, I aint doing much passing __________________ If the life I live dont kill me, then I guess I'll never die! New updated stuff at www.kdrodworks.com My site still needs help, web guys and gals pm me. the best guys in the whole world: sweet70beast, jonzcustomshop, runninlow, captainfab, and the one I havent met yet, joe231

09-07-2008, 12:15 AM	#14
MacAttack 283 Drama Queen Join Date: Dec 2004 Location: Surf City, CA Posts: 2,435	Re: What is the 2nd linkage on my AT? Stopped by HB Trans yesterday on the way home from work - "not good" was what the owner said - she goes in Monday for a review and if everything's okay, a reconnection of the kick-down and adjustment. Wish me luck - this could get ugly quick for the Chevelle. __________________ For about 12 years of my adult life I had a severe speech impediment. My ex-wife never let me get a word in edgewise.

09-10-2008, 09:39 PM	#15
hAetWagon Schlongbed MEMBER (heh)#15 Join Date: Jun 2005 Location: Sacramento Posts: 232	Re: What is the 2nd linkage on my AT? So it is in fact the detent cable for my tranny which is a Powerglide. Now I just gotta find one. __________________ 82 Chevy Blazer 4wd.RIP 1965 Chevy C10,350V8 Get it reliable,then puttin' it in the weeds.. "Old truck, all new headaches."

09-11-2008, 12:28 PM	#16
MacAttack 283 Drama Queen Join Date: Dec 2004 Location: Surf City, CA Posts: 2,435	Re: What is the 2nd linkage on my AT? The Blue Lives! It cost $255.00, and two days, but I don't care! Hardware came from Classic Industries - 300 feet from my guy at HB Transmission, and it shifts and 'kicks-down' perfectly. Now it shifts at about 30-35 mph instead of 15-20 mph and delays shifting as long as I like it if I mash the throttle from the light! Big change in how the Chevelle drives. __________________ For about 12 years of my adult life I had a severe speech impediment. My ex-wife never let me get a word in edgewise.



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