Datto_610's C31 Laurel Pillarless Sedan

[Datto_610]

Right. Standard wheels back on, still need new front discs can only assume they will be the same as R30?? Will pop in and see Brock soon. I measured the gearbox the other day so I knew which manual one I needed, short or long. It was a bit difficult to get a good measurement but got somewhere around 750ish mm. My internet research as come up with short box = 668mm and long = 800mm so assuming I didn't quite measure properly I'll need a long box?

[broke]

I've had a 3N71 trans on the ground next to a 71B long box and they were the same length, so I'd go with long.

[Datto_610]

Sweet thanks now the search is on for a long box!

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[broke]

Have one at home......

[Bartman]

I thought the R30 used the short box, and the C31 is the same chassis as an R30?

[DJZ]

They don't make a short auto as far as I know which complicates things, it should probably have short box, my old factory manual C31 did. If you try a long box you may find the gearstick is miles away from the hole.

[broke]

All good points. You may find (as I did with the C32) that auto and manual floorpans are completely different and the crossmember studs/holes may not line up with either crossmember if you try to do a swap. Brocky and I found a similar issue when trying to fit a LD28 into his R30, neither box would fit.

I know in my case I found a way around the issue, but in Brock's we had to give up.

I recommend taking some measurements before ripping things apart.

[Datto_610]

I'm still a long way off from doing this conversion, I do have the manual driveshaft from the r30 I wrecked so guess I'd need a box to match that length and possibly modify gearbox crossmember?

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[classicdat]

That doesn't sound far off, are you able to compare the C31 Brock has to see what is needed?

[Datto_610]

Looks like I'll be paying Brock and John a visit on Saturday! Hopefully there is still plenty left of the red C31

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