Seat Track - ZR-1 Net Registry Forums

vettn71 · 11-19-2011

Has anyone pulled their seat transmission apart? My 16,000 mile 90's passenger seat won't move back and forth. I don't see anything jamming it, so I thought I'd disassemble and see if anything is hung up inside

jim

Ccmano · 11-19-2011

Easy to do. Problem is getting the parts. There's a guy from Canada that periodically sells the transmission parts to rebuild it yourself for about $50 on Ebay. But he's not currently selling. I've done two now and it's not hard if you have any mechanical skills at all. There's also an outfit on Ebay currently selling the entire transmission for $150 which is not too bad. Don't make the same mistake I did an buy an old and supposedly "good" seat frame with the transmission. I got one that was broken from the get go, the other I installed and it broke in a matter of weeks. These old plastic parts inside the transmission just don't hold up.

Here's what the guts of the transmission looks like with the typical broken parts.
H

vettn71 · 11-19-2011

Great info and pictures. How did you remove the transmission from the track?

Jim

Ccmano · 11-19-2011

The seat track separates into a right and left side when you remove the C-clips that hold the shafts in place. When you look at it, it will be obvious. Once separated the transmission can be removed.
H

vettn71 · 11-19-2011

Super! Thanks

Jim

Pete · 11-20-2011

I have 2 working seat tracks for sale $200 for both Left/Right came off my 1991 Z

Pete

vettn71 · 11-20-2011

Well, I am a practictioner of the BFH mechanical maintenance method, but I don't want to bust this thing up, if I can help it. There was one C-clip on the one smaller cross-shaft and the two cotter keys. It's loose, but won't separate. What am I missing? The photo shows where I'm at.

Jim

Ccmano · 11-20-2011

The only thing holding it together now is the motor drive shaft tubes. If you look at the motor there are two screws between the three tubes where they attach to the motor. Remove those screws and the two halves should come apart. Remove the bolts that hold the transmission to the frame, I think there are three that go through the center of the case. The transmission case is is riveted together along the outside, those need to be drilled out to separate the halves.
H

vettn71 · 11-20-2011

I did remove those two screws, but it's hanging together. I pried one of the pins that had the cotter keys in it apart. I really thought it would be much easier, which is why I'm sure there's something simple I've missed.

I appreciate the offer of the seat tracks, but my car only had 16k on it, so I'm sure it's an age thing. The passenger seat was rarely operated.

Ccmano · 11-20-2011

Quote:

Originally Posted by vettn71

I did remove those two screws, but it's hanging together. I pried one of the pins that had the cotter keys in it apart. I really thought it would be much easier, which is why I'm sure there's something simple I've missed.

I appreciate the offer of the seat tracks, but my car only had 16k on it, so I'm sure it's an age thing. The passenger seat was rarely operated.

It's probably just stuck at the center shaft where you removed the C-clip. Try a few taps with a mallet on the inside of the frame that the motor is attached to.
Looks like you took the transmission bolts out already. You may want to put those back in to hold the transmission firmly while you tap on the opposite frame.
H

11-19-2011	#1
vettn71 Join Date: Oct 2008 Location: Colleyville, TX Posts: 272	Seat Track Has anyone pulled their seat transmission apart? My 16,000 mile 90's passenger seat won't move back and forth. I don't see anything jamming it, so I thought I'd disassemble and see if anything is hung up inside jim

11-19-2011	#2
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Seat Track Easy to do. Problem is getting the parts. There's a guy from Canada that periodically sells the transmission parts to rebuild it yourself for about $50 on Ebay. But he's not currently selling. I've done two now and it's not hard if you have any mechanical skills at all. There's also an outfit on Ebay currently selling the entire transmission for $150 which is not too bad. Don't make the same mistake I did an buy an old and supposedly "good" seat frame with the transmission. I got one that was broken from the get go, the other I installed and it broke in a matter of weeks. These old plastic parts inside the transmission just don't hold up. Here's what the guts of the transmission looks like with the typical broken parts. H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.

11-19-2011	#3
vettn71 Join Date: Oct 2008 Location: Colleyville, TX Posts: 272	Re: Seat Track Great info and pictures. How did you remove the transmission from the track? Jim

11-19-2011	#4
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Seat Track The seat track separates into a right and left side when you remove the C-clips that hold the shafts in place. When you look at it, it will be obvious. Once separated the transmission can be removed. H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.

11-19-2011	#5
vettn71 Join Date: Oct 2008 Location: Colleyville, TX Posts: 272	Re: Seat Track Super! Thanks Jim

11-20-2011	#6
Pete Join Date: Dec 2003 Location: Chicagoland,IL Posts: 2,679	Re: Seat Track I have 2 working seat tracks for sale $200 for both Left/Right came off my 1991 Z Pete __________________ '91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage

11-20-2011	#8
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Seat Track The only thing holding it together now is the motor drive shaft tubes. If you look at the motor there are two screws between the three tubes where they attach to the motor. Remove those screws and the two halves should come apart. Remove the bolts that hold the transmission to the frame, I think there are three that go through the center of the case. The transmission case is is riveted together along the outside, those need to be drilled out to separate the halves. H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.

11-20-2011	#9
vettn71 Join Date: Oct 2008 Location: Colleyville, TX Posts: 272	Re: Seat Track I did remove those two screws, but it's hanging together. I pried one of the pins that had the cotter keys in it apart. I really thought it would be much easier, which is why I'm sure there's something simple I've missed. I appreciate the offer of the seat tracks, but my car only had 16k on it, so I'm sure it's an age thing. The passenger seat was rarely operated.