logo
12 Port News - Features
12 Port History
Casting Numbers
Online Store
Tech Tips
Become a Member
Previous Thread
Next Thread
Print Thread
Rate Thread
#53156 11/03/09 07:16 PM
Joined: Nov 2006
Posts: 202
5
52er Offline OP
Contributor
***
OP Offline
Contributor
***
5
Joined: Nov 2006
Posts: 202
Picked up a 1352-070 84 Camaro tranny--the guy said on occasion it would not down shift to third. I have removed the shift plate and it seems pretty good inside---I did notice one of the shift forks had one of the blue clips broke and about to fall off. Would this cause the down shift problem, if not what should I be looking for............Thanks....Lee


One should live as if you sold the family parrot to the town gossip....Will Rogers
52er #53160 11/03/09 09:13 PM
Joined: Mar 2009
Posts: 35
A
Active BB Member
Offline
Active BB Member
A
Joined: Mar 2009
Posts: 35


I would say it is a bad synchronizer.


Jimmy

52er #53161 11/03/09 09:14 PM
Joined: Jul 2000
Posts: 1,613
G
1000 Post Club
Offline
1000 Post Club
G
Joined: Jul 2000
Posts: 1,613
If those little nobby teeth on the one side of the gear, next to the synchro rings are rounded off too much, It can make it tough to get into gear.


I.I. #3174
gearhead #53171 11/03/09 11:42 PM
Joined: Nov 2006
Posts: 202
5
52er Offline OP
Contributor
***
OP Offline
Contributor
***
5
Joined: Nov 2006
Posts: 202
 Originally Posted By: gearhead
If those little nobby teeth on the one side of the gear, next to the synchro rings are rounded off too much, It can make it tough to get into gear.
So the forks are not the problem? I`am not the tranny expert but things look real good on the inside---guess I will take it to the tranny shop to have a look. Back at ya later with the results...........Lee


One should live as if you sold the family parrot to the town gossip....Will Rogers
52er #53176 11/04/09 02:35 AM
Joined: Jul 2000
Posts: 1,613
G
1000 Post Club
Offline
1000 Post Club
G
Joined: Jul 2000
Posts: 1,613
If it was the forks, I would think it would be a problem for more than just one gear.


I.I. #3174
gearhead #53549 11/20/09 02:16 AM
Joined: Apr 2016
Posts: 384
W
Contributor
Offline
Contributor
W
Joined: Apr 2016
Posts: 384
I had a similar problem on a Nissan 720 pickup. I could shift into first gear, but the trans wouldn't stay in gear unless I held the shifter in place with my hand. If I took my hand off the stick, the trans would pop out of gear, and it only did it in 1st gear. After driving the truck for about 10 years, it got so bad that it would pop out of gear even with me holding the stick and putting pressure on it, so I finally broke down and had the trans rebuilt, and the problem turned out to be a bent shifter fork, which had been bent before I bought the truck. That bent shifter fork only affected first gear; second through fifth were all fine. So I think it's entirely possible that the downshifting problem may be a bad shifter fork too, and it also can affect only one gear, the same way the one in my truck did.


Formerly known as 64NovaWagon.
52er #54243 12/14/09 10:43 PM
Joined: Nov 2006
Posts: 202
5
52er Offline OP
Contributor
***
OP Offline
Contributor
***
5
Joined: Nov 2006
Posts: 202
Well I had a buddy who builds race cars and he does a lot of trannys have a look. At one time the tranny was rebuilt and the cluster gear was replaced. With the case opened up he was able to run it thru the gears and spin each one and look carefully at each set. He feels it will be ok without a rebuilt for the kind of use it will get. The blue pad on one shift fork was gone for the most part and he thought it was binding as it was the fork that is used on third gear. We went ahead and did the speedo gear relocation and put the S-10 tailshaft,top cover. Also new rear seal and bushing. Test run with the new engine come spring will tell the tail....catch you on a update then..........Thanks all.....Lee


One should live as if you sold the family parrot to the town gossip....Will Rogers
52er #54244 12/14/09 11:00 PM
Joined: Jul 2007
Posts: 376
Contributor
Offline
Contributor
Joined: Jul 2007
Posts: 376
Yeah 3rd is always the first to go and it's almost always the fork.


"The first rule of overkill: You can never have too much overkill."
"Overkill is underrated."

Moderated by  stock49, will6er 

Link Copied to Clipboard
Who's Online Now
0 members (), 314 guests, and 51 robots.
Key: Admin, Global Mod, Mod
Newest Members
trustedmedications20, Jsmay101, Paul Mahony, KeithB, Steve83
6,783 Registered Users
Sponsored Advertisement
Sponsored Advertisement
This Space is Available
Powered by UBB.threads™ PHP Forum Software 7.7.5