I've just picked up a sr20 6 speed that couldn't select 5th/6th and reverse.
I just pulled it apart, and it looks like there is no 5th/reverse selector fork?

Here's a couple of pics of where I think the selector fork should be, but there's nothing there?





All there was was a piece of old selector fork in the bottom of the box.

Piece of old selector fork.


Can't find to much info online, but does it just look like it needs another selector fork on the rod for 5th/reverse gear.
The rest of the box looks good!

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When the sign says "don't feed the bears", man you better not feed the bears.

Dave fitted a 6speed too his track 1600 a while ago, in his tutorial on here he mentions he got a damaged gear box too dummy fit and play with. He may be worth a try for some parts

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Chris Thomas

1971 1600, mild L18, 5 speed

All I want is less to do, more time to do it and higher pay for not getting it done.

This may help !

If you send me your email address, I can send you the entire gearbox section of the repair manual.

EDIT: Nevermind, its not as big as I thought - I've posted it into the Tutrorials, etc section

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1970 ex Group A Rally P510
1971 P510
1972 180B SSS
1965 SP310 Fairlady
1966 SP311 Fairlady

How's your gearbox handling the conversion and track work Dave?

Gearbox looks really good if I stick my head under the car in the shed. It hasn't moved in 18 months

Need to fix the alternator (it broke last trip to the track), tidy up a few other odds'n'ends, and get my trailer registered once again. Plan is to get it all sorted by Xmas and hit the track again in the new year.

While it was going, the gearbox worked beautifully, much nicer to drive with the closer ratios.

I still have (somewhere) a different 6th gear set for the S15 box to bring it closer to 5th and make 6th more usable in my car. The 1st gearset from Nismo would also be nice.... One day, the plan is to build up my busted 6 speed with the better ratios and see if it all works together (the 6th gearset I have is out of the Toyota version of the gearbox, so I'm hoping it will actually fit in the Nissan version).

There's a few of these conversions around now. My jig has been touring the country and is onto its 5th conversion currently.

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1970 ex Group A Rally P510
1971 P510
1972 180B SSS
1965 SP310 Fairlady
1966 SP311 Fairlady

Id love to get one made up my engineer is taking for ever even just to start my Jig. I have both bellhousings sitting here ready to go if you want to do an exchange,

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Past:
A10 160J Coupe
R30 Turbo Manual
Present:
KP710 160JSSS Coupe (My Standard Car)
KP710 160JSSS Coupe (My SR20DET 6Spd Car)
KP710 140J Delux (New Road Car)
KP710 Parts POS

Dave,

I am interested in your Jig, how do I go about hiring/leasing/borrowing it? Text me your number if you like and I will call you back.

Mark
0438132840

I've got it at the moment Mark,
just chasing up one more L bellhousing and I will be doing a run of gearboxes in the near future

Cheers

Yeah, what he said ^^^^

I haven't seen my jig in a year or two, its been touring Australia.

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1970 ex Group A Rally P510
1971 P510
1972 180B SSS
1965 SP310 Fairlady
1966 SP311 Fairlady

Can you call me, send me a txt and I will call you back?

Mark
0438132840

How do you remove the s15 bell housing? Looks like whole box needs to come apart.