Cadillac CTS-V 2004-2007 (Gen I) The Caddy with an Attitude...

the v1 reverse fix

Thread Tools
 
Search this Thread
 
Old 04-18-2014 | 11:46 PM
  #41  
Sweetwilliebrownjr's Avatar
On The Tree
 
Joined: Aug 2011
Posts: 140
Likes: 0
From: Brandon, ms
Default

So, I've got a rpm level 5 trans (installed by PO) and when I bought it, the pilot bearing was trying to lock up, which ruins synchronizers, obviously. Reverse has always been nearly impossible to achieve. You'd have to put it in first, let out on the clutch pedal until the clutch started to engage, then fling it in reverse as fast as possible. That causes problems if you're in a hurried situation, and it only works the first try about 75% of the time. I just did this mod to my car, and over the last 2 days it has went in reverse normally EVERY single time. There's a bit of a grind because I need a reverse blocker ring (on order), but I cannot put into words how much this has improved my opinion of this car. If you haven't done this mod, do it. It is better than my Maggie.
Old 04-19-2014 | 08:04 AM
  #42  
bigassogre's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2012
Posts: 160
Likes: 2
From: southern wv
Default

Originally Posted by Sweetwilliebrownjr
So, I've got a rpm level 5 trans (installed by PO) and when I bought it, the pilot bearing was trying to lock up, which ruins synchronizers, obviously. Reverse has always been nearly impossible to achieve. You'd have to put it in first, let out on the clutch pedal until the clutch started to engage, then fling it in reverse as fast as possible. That causes problems if you're in a hurried situation, and it only works the first try about 75% of the time. I just did this mod to my car, and over the last 2 days it has went in reverse normally EVERY single time. There's a bit of a grind because I need a reverse blocker ring (on order), but I cannot put into words how much this has improved my opinion of this car. If you haven't done this mod, do it. It is better than my Maggie.
just out curiousity, had u heard of this mod before u read my post? i wS just wondering how many other people have done/heard of it. also just goes to show ya that just bc you pay a reputable shop doesnt mean youll get the best results
Old 04-19-2014 | 09:20 AM
  #43  
Sweetwilliebrownjr's Avatar
On The Tree
 
Joined: Aug 2011
Posts: 140
Likes: 0
From: Brandon, ms
Default

Your post was the first I'd heard of it. I then researched it before hacking anything up. Seems to be a fairly common ordeal. As far as RPM, there wasn't a lot that the could've done to prevent the issue. The trans was installed at the same time As a monster clutch and light flywheel. Just a bad bearing.
Old 04-19-2014 | 10:03 AM
  #44  
AAIIIC's Avatar
TECH Addict
15 Year Member
iTrader: (19)
 
Joined: Aug 2007
Posts: 2,412
Likes: 110
From: Where the Navy tells me to go
Default

My reverse is a PITA to get into, but I would never have thought you could fix the problem with the tranny still in the car. I'm not sure I've got the guts to do this, but I've been thinking of getting a CF driveshaft, so I could do this while I already have the driveshaft out.
Old 04-19-2014 | 10:54 AM
  #45  
bigassogre's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2012
Posts: 160
Likes: 2
From: southern wv
Default

Originally Posted by AAIIIC
My reverse is a PITA to get into, but I would never have thought you could fix the problem with the tranny still in the car. I'm not sure I've got the guts to do this, but I've been thinking of getting a CF driveshaft, so I could do this while I already have the driveshaft out.
thats why i did this writeup for everybody. i wondered myself if it could be done but i get too curious to leave stuff alone lol. it only took me about 4hrs from start to finish and i went in blind lol. just follow the pics and u should be good to go. the hardest part for me puttin the tailhousing back on bc the shafts sag a little while in the car.
Old 04-19-2014 | 10:58 AM
  #46  
bigassogre's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2012
Posts: 160
Likes: 2
From: southern wv
Default

Originally Posted by AAIIIC
My reverse is a PITA to get into, but I would never have thought you could fix the problem with the tranny still in the car. I'm not sure I've got the guts to do this, but I've been thinking of getting a CF driveshaft, so I could do this while I already have the driveshaft out.
yea im not trashin rpm at all. before i knew how to build a trans a had a level5 in my 99 camaro. it was probably the tightest feeling t56 that i have driven. it was sweet but now i know how to get the same results without spending $4000+
Old 04-19-2014 | 02:30 PM
  #47  
Fweasel's Avatar
TECH Resident
iTrader: (6)
 
Joined: Jul 2013
Posts: 978
Likes: 2
From: Chicago
Default

I just stopped by the trans shop today to see my T56 while it was in pieces. After speaking with the owner, I can confirm that my reverse problem could have been fixed with the trans still in the car as excellently illustrated here in this thread. My pads weren't as bad, and the root issue for me seemed to be a worn syncro and blocker ring. I'm getting a new reverse gear, syncro, blocker, frictions, and brass pads to cure my reverse issue. While the trans was apart, they're replacing all pads with brass, billet keys, friction surfaces, and a new 3rd gear and syncro. I think my wife will actually be able to drive the car now.
Old 04-19-2014 | 03:37 PM
  #48  
Fweasel's Avatar
TECH Resident
iTrader: (6)
 
Joined: Jul 2013
Posts: 978
Likes: 2
From: Chicago
Default

I also wanted to add that Finish Line told me now that the T56 has been discontinued, parts are more expensive and harder to get. His distributor had 30 reverse gears on back order, I happened to get the last one his shop had on hand. If this is a project you plan on undertaking, you might want to order your parts well in advance.
Old 04-19-2014 | 07:13 PM
  #49  
bigassogre's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2012
Posts: 160
Likes: 2
From: southern wv
Default

Originally Posted by Fweasel
I also wanted to add that Finish Line told me now that the T56 has been discontinued, parts are more expensive and harder to get. His distributor had 30 reverse gears on back order, I happened to get the last one his shop had on hand. If this is a project you plan on undertaking, you might want to order your parts well in advance.
make sure u put a steel 3rd gear shift fork in it if it doesnt already have one. supposedly ctsv's came with steel but i still think some of them were aluminum. just a heads up!
Old 04-28-2014 | 09:38 PM
  #50  
jmac_98ls1's Avatar
Staging Lane

iTrader: (1)
 
Joined: Jun 2004
Posts: 72
Likes: 0
From: Pevely, MO
Default

Thanks for the great write up. I seriously have my 04 V on jack stands in the garage now for this exact same problem. I too thought it was shifter bushings replaced those installed the driveshaft and fired it up on stands and it still popped out, so back out came the d/s. my V was always hard to get in reverse but never popped out till I did a monster lvl 2 clutch it would have been a lot easier to do this on the bench when I had the tranny out but it looks like I am doing it in the car.
Old 04-29-2014 | 12:47 AM
  #51  
liqidvenom's Avatar
TECH Fanatic

iTrader: (2)
 
Joined: Mar 2009
Posts: 1,716
Likes: 1
Default

might be one of the best threads i have read on here in a while that addresses an issue some of us have
Old 04-29-2014 | 11:23 AM
  #52  
bigassogre's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2012
Posts: 160
Likes: 2
From: southern wv
Default

Originally Posted by wes8398
The pictures don't load on the computer I'm on (work), but awesome write-up. I'm wondering... could this repair still help even if you're not popping out of gear or grinding into gear? I'm getting blocked out of reverse ever since an ls7 clutch install; but reverse is the only issue. Don't seem to be having any clutch drag, etc...just have to really wiggle and jam the crap out of the shifter to get it into reverse. I'm not sure why the clutch install brought this out, but it seems to have done so...
You dont have to push the shifter as far forward. Its about the same as the other gears, before i did it i used to have to try to cram the shifter through the hvac controller lol
Old 04-29-2014 | 12:07 PM
  #53  
jmac_98ls1's Avatar
Staging Lane

iTrader: (1)
 
Joined: Jun 2004
Posts: 72
Likes: 0
From: Pevely, MO
Default

what did you use to machine off the shift fork the 3/32
Old 04-29-2014 | 01:59 PM
  #54  
bigassogre's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2012
Posts: 160
Likes: 2
From: southern wv
Default

I used the side of a stone wheel on a bench grinder. Just took a little bit off at a time til it fit right. I know one guy used a regular grinder and one guy used a belt sander. Doesnt really matter as long as u take it off of the correct side
Old 04-29-2014 | 07:21 PM
  #55  
Sweetwilliebrownjr's Avatar
On The Tree
 
Joined: Aug 2011
Posts: 140
Likes: 0
From: Brandon, ms
Default

I used a die grinder and a 3m surface prep wheel.
Old 04-29-2014 | 08:55 PM
  #56  
bigassogre's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2012
Posts: 160
Likes: 2
From: southern wv
Default

And there's one more option
Old 04-29-2014 | 09:06 PM
  #57  
Fweasel's Avatar
TECH Resident
iTrader: (6)
 
Joined: Jul 2013
Posts: 978
Likes: 2
From: Chicago
Default

So people are referring to this as a "mod" as in modification. bigassogre modified the reverse fork for increased travel, but also replaced the reverse gear, severely worn pads, blocker ring, and syncro all at the same time. The scientist in me knows you can't change that many variables at once and call it a victory, even with positive results.

For everyone else chiming in with success stories, for clarification, did you modify only the reverse fork and make no other changes to the trans while apart? I'd like to collect a little more data on what actually is making the most impact on a poor reverse gear selection issue. My own reverse problems appeared to be syncro and blocker ring wear related. I chose not to modify my reverse selector fork. I'm interested in hearing from those who were able to cure their problems with only the fork modification.
Old 04-29-2014 | 10:17 PM
  #58  
Sweetwilliebrownjr's Avatar
On The Tree
 
Joined: Aug 2011
Posts: 140
Likes: 0
From: Brandon, ms
Default

Well, the only way I could get in reverse prior to doing this was to put it in a forward gear, let out on the clutch pedal until the clutch began to engage, then hit the clutch pedal and sling it in reverse. That only worked prolly 3/4 of the time or so. After this mod, I simply put it in reverse. I do have a worn blocker ring, so it grinds a bit. The new blocker ring is in my center console until I have time to do it. The fork was THE only thing I changed other than the silicone on the tailshaft housing and a new tailshaft seal. I'd say it absolutely works. Beforehand, it would not even go in reverse with the engine off. Until I get the new blocker ring in, I sync it using first to keep it from grinding. Reverse has been achieved EVERY time since the mod.
Old 04-30-2014 | 01:36 PM
  #59  
bigassogre's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2012
Posts: 160
Likes: 2
From: southern wv
Default

Originally Posted by Fweasel
So people are referring to this as a "mod" as in modification. bigassogre modified the reverse fork for increased travel, but also replaced the reverse gear, severely worn pads, blocker ring, and syncro all at the same time. The scientist in me knows you can't change that many variables at once and call it a victory, even with positive results.

For everyone else chiming in with success stories, for clarification, did you modify only the reverse fork and make no other changes to the trans while apart? I'd like to collect a little more data on what actually is making the most impact on a poor reverse gear selection issue. My own reverse problems appeared to be syncro and blocker ring wear related. I chose not to modify my reverse selector fork. I'm interested in hearing from those who were able to cure their problems with only the fork modification.
I can see where people would be skeptical but its simple measurements and it works
Old 04-30-2014 | 04:20 PM
  #60  
Fweasel's Avatar
TECH Resident
iTrader: (6)
 
Joined: Jul 2013
Posts: 978
Likes: 2
From: Chicago
Default

Originally Posted by bigassogre
I can see where people would be skeptical but its simple measurements and it works
No, don't get me wrong, I don't doubt your results. I'm just looking for more evidence of success when the fork modification was the only change. Had your write-up been posted two weeks earlier, I would have told my mechanic to leave the trans in the car, flip the reverse syncro, grind the fork, and take all the saved money and dropped it on hookers and blow.


Quick Reply: the v1 reverse fix



All times are GMT -5. The time now is 04:24 AM.