Thread: Series 2a gearbox ID

Can I gut my S3 "A" box and bot stronger internals in?

If so, what should I change?

I will throw the other S3 box out to tip!

IMO the SIIA box is stronger than the SIII, but there doesn't seem to be a lot in it. SIIA boxes tend to snap layshafts (- but mine has the late model (properly radiused) layshaft in it, and has broken everything but), whereas SIII boxes tend to have problems with the 1st & 2nd synchro rings, which makes them jump out going down hills offroad - which is never fun. SIII boxes have also been known to break mainshafts.

You can AFAIK pull the whole internals out of your suffix A box, and put all new internals in, but you will be looking at anywhere between $500 and a few $000 depending on if you use new or 2nd hand gears and shafts, and how friendly you are with your parts dealer.

NB - it is impossible to get new genuine gears and shafts for series boxes (but some parts like bearings and thrust washers are still available genuine). Because of this, you have to be sure you are buying good quality parts. I once had an almost new layshaft first gear lose 3 teeth - including the roots - becaus the gear was made from a blank that was too soft, and then had been case hardened too much to compensate.

Originally Posted by Land-lord

Can I gut my S3 "A" box and bot stronger internals in?

If so, what should I change?

I will throw the other S3 box out to tip!

Why are you throwing out your other box? Is either box fitted to a vehicle, or do you know if they work OK?

you sure can, if you want you can put the stronger internals in a 2a box, all you need to do is have the bearing journals enlarged...

the potential gearbox guts combinations are literally staggering.

then theres the tcase options

Originally Posted by Blknight.aus

you sure can, if you want you can put the stronger internals in a 2a box, all you need to do is have the bearing journals enlarged...

the potential gearbox guts combinations are literally staggering.

then theres the tcase options

.......and heaven help anyone trying to find the right parts to fix it in future!

John

Originally Posted by Land-lord

Hells Bells!

Another variable to consider...name plate changes...

LOL - welcome to rover.

Looks like I have been gutted.

No s2a box in my nest...

Here's the G O....

My plan is to build a 86" 1954 SWB from scratch.

I have a complete 88" 1957 SWB as my donor Landy right next to it..

This 88" has the S3 gbox linked to a hodlen 186.

I want to put transfer this motor/box into the 86" - for starters..

I was sold S3 box after being told it was the S2a box. Sucked in!

THoughts

What engine are you planning to use?