gearbox oil

colin smith · Mar 21, 2003

I' m going to replace the oil in my gearbox hopefully to improve the change (915 box). Which one should I use and is there any problems I should know about.

Thanks

Colin

PS posted similar requested on 911uk.com . If you don' t look at it yet ,it' s good.

bert gear · Mar 22, 2003

Change to Swepco gear oil you will not get better
in stock £25.00 plus vat 1Gall American

colin smith · Mar 23, 2003

Bert

Is one us gall enough? Also does that price include delivery?

Colin

Guest · Mar 23, 2003

Colin,
we have to stop meeting like this!!!!!![

]
I have found that there are a couple of other areas to look at to improve the gear change on a 915 box.
1/ The linkage bushes under the gear shift; replace them (x2)
2/ The linkage coupling in the tunnel in front of rear seats; check it; if sloppy replace (bert has these)
3/ While at the above (2), check the shift positioning; see Bentley manual or Pelican.
4/ check/re-new engine and gearbox mounts; yeah (I know) " how does that make any differance?" , - if the engine/box assembly moves too much this effects shift linkage.
5/ check the oil in the box.[:-]
If these all check ok; then it must be worn syncro' s on 2nd gear.
double de clutch!
peter

colin smith · Mar 24, 2003

The box had a rebuild by autofarm about 35000 miles ago , so I' m hoping that it' s one of the cheaper options first. So gearbox oil here I come!!!!

Colin

ClubSport 911 · Mar 25, 2003

Can concurr that even if theoretically incorrect for the G50, the Swepco 201 has improved the gear change of my 1988 3.2 significantly.... Good luck

bert gear · Mar 25, 2003

Swepco is recomended for all gearboxes including LSD

Jonathan Collins · Mar 25, 2003

I had slight baulking shifting up from 1st to 2nd when cold (1988 g50, 100000 miles). Replacing the existing (unknown brown) oil for Castrol Syntrax has improved the gear change all round.