Whenever I get over 5k revs at WOT on my 73 240 the shifter begins to vibrate enough to make a loud sort of buzzing noise. I recall someone saying that this was due to the shifter bushings being worn, but before I change them I wanted to hear what others thought.

Daniel

Originally posted by mdbrandy

Chloe says that the trannys "eat them". I suspect that's what I'll find in the new 280 as well.

Yes, as they get broken apart by shifting action over the years, the pieces fall into the transmission and either get ground up or fall to the bottom of the case. When I have drained transmissions (hot) I have seen small chunks of bushing in the drain pan.

has anyone done this? what is the right way of changing this bushing?

1. take the center console out

2. take both of the rubber boots off of the shifter

3. carefully remove the c-clip on the pin holding the shifter in the tranny

4. pull the pin holding the shifter out

The shifter should pull straight up and out after those steps.

5. install new bushings in the shifter, not the transmission tabs

6. then put it back together.

Thats how I did it on my 260z. I have never done shifter bushings on a 240z but I would imagine the steps are very similar, if not identical to the 260z.

Daniel,

Here is a write up I did for our NWZ club members. I can't take credit for this bushing upgrade - I read about it somewhere and did the upgrade on my 1972 Z.

REPLACING WORN SHIFTER BUSHINGS

The bushings I used were automotive door hinge bushings. The kit is made by HELP!, and the kit that you want is #38377. It will work on all Z four and five speed shifters from 1970 through 1983 (not including the BW T5). I bought my kit at Baxter's Automotive. They had to order it from downtown - however, I had it that same afternoon. I would call and see if they have it in stock. If not, they'll get it in for you. List price was $4.95.

I lubed the bushings and shifter hole with white lithium grease, then used a vise to press the bushings into the shifter cross pin hole. Next, I put a little lithium grease into the bushings and on the pin, then I worked the pin in and out a few times. It gives a very snug fit with no bushing/pin sloppiness at all. There will be a small void between the two bushings. I filled that with grease for ongoing lubrication.

When I put the shifter lever back into the tranny "ears", it was a little too tight. So I took a sheet of very fine sandpaper and laid it flat on my work bench. Then I rubbed the flat sides of the bushings in a circular motion for a few seconds (we're talking just a thousandth or two here). Then the lever slipped right into the tranny ears without problem. The whole process took about fifteen minutes - a piece of cake.

Here is a link to the bushings on Flebay. Auction #290191687246

http://cgi.ebay.com/ebaymotors/DATSUN-240Z-260Z-280Z-NEW-BRASS-SHIFTER-BUSHINGS-NO-RES_W0QQitemZ290191687246QQcmdZViewItem?hash=item290191687246

-Rick

Thank you guys so much, you guys are soooo helpfull, really appreciated. I am going to get busy this week end, thanks agian