6 speed shenanigans. RA60F swap to RC62F

12/15/2022 I have edited this post after all was said and done. PLEASE READ ME!

If you read through this thread, you can follow how I learned as I went with this swap. If you get confused, just keep reading, it all unwinds and I explain all.

The way I did all of this certainly isn’t the only way to go about it. There’s several options at every step. If you’re seriously considering doing this, you’ll learn and choose the best option for your situation as you go as well. I enjoyed the hell out of making this work. And, I really love the new ratios and smooth shifting. I’m sure that you will too.

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As a sister thread to my throwout bearing and clutch system thread; This thread will be where to discuss the internal happenings of the RA60/61 F transmissions.

I'll be diving into my transmission very soon to address a few issues and to possibly switch out the necessary components to get the FJcruisers' .799 OD.

Well, maybe not...

Originally I had planned to re-build my existing RA60F and make some improvements. But, as it turned out, I ended up swapping to an RC62F transmission out of a 3rd gen Tacoma in lieu of going through the RA60F trans. I like the ratios. I like the two overdrives. I like that the quill is NOT aluminum. I like that it is a newer design. The reverse ratio kind of sucks. But, that complaint seems to be common to both the 2nd and 3rd gen owners. I’ll call that a wash.

I am still planning to run a Tilton hydraulic release bearing. As for the shifter, it’s either the stock 3rd gen one or a Core/Hurst short shifter. That’s all hinging on what the transmission shows up equipped with.

EDIT:

So, A lot of people have asked for me to list what parts I used to make all of this work. Here ya go.

90119-A0234 X 6 These are the bolts that hold the pressure plate to the flywheel.

90105-10294 x 8 These are the flywheel to crankshaft bolts.

12371-0P250 x 1 This is the rear trans mount/insulator.

90119-A0210 x 4 These are the 10mm bolts that hold the rear mount to the crossmember. The RA trans uses 8mm bolts here.

$17 90080-43036 Toyota Genuine Exhaust Pipe Gasket

90080-43036 x 2 These are the exhaust donuts where the Y-pipe meets the manifolds.

04007-13104 x 3 These are the U-joints I used when I had the driveshaft shortened and balanced.

31121-04030 x 1 This cover closes up the inspection hole in the bell housing. My tranny did not have it in place when I received it.

33584-0K010 x 1 This is the gasket for the shifter retainer housing.

96721-35063 x 1 This is the large o-ring that seals the transfer case to the back of the transmission.

90950-01841 x 4 These are the little hole plugs I used to seal up the small holes in the floor that were left unused when I relocated the shifter boot.

90467-09205 x 4 These are the hole seals that mate with the clips that hold the shift boot in place. The old ones will be trashed.

90467-07066-22 x 4 These are the clips that hold the shift boot in place.

 

The following few posts (#2-6)are the R&I and Rebuild instructions for the 2nd Gen RA60F.

Trans removal and install:

 

RA60F Unit disassembly and reassembly.

 

RA60F Counter and reverse gears

 

RA60F Input shaft

 

RA60F Output shaft

 

Links to more information:

@gearcruncher has put up a TON of info here.

 

These are just some rudimentary measurements of the RC62F

 

Now we find upgraded synchros.

 

@BillDaCat8 I have the 60mm socket, the 27mm allen and the splined socket for the input shaft. Let me know when the tear down starts and Ill ship them if you would like.

 

Oh thank you! I may very well need to borrow those.

 

So, at this point, I’m still open to all ideas. I’ve heard of T56 swaps. But I’m not positive that I can retain my 4wd with that setup. Maybe @Torspd can chime in here.

I’m also very much liking the RC62F ratios. I’ve always felt this truck needs “another gear” beyond sixth. And I am constantly finding myself skipping gears during normal driving.

RC62F ratios:
3.982
2.017
1.321
1.000
.848
.713

RA60F ratios:
4.171
2.190
1.488
1.193
1.000
.849 or .799 for RA61F FJcruiser


Edit: So, it does in fact appear that this trans is compatible with the 2nd gen transfer case. Win.

I’m also pretty dang sure that it’ll bolt directly to the engine no problem. Being that they’re the same RWD GR engine family. Does anyone have any insight on this transmission going into a 2nd gen?

@Jowett I could use your expertise here.

 

www.rsgear.com

T56 Magnum mated to the BW AWD transfer case. That's the ticket.

 

A better ratio sixth would be great. Also if something has a better reverse gear. Without riding the clutch it seems reverse was made for 20 mph backwards.

 

I would also love a better 6th so i could throw some aggressive gears in there. Definitely will be watching this one

 

I’ll put something useful here eventually

 

I could be wrong here. But, by the looks of things, the transfer case may just swap!

3rd gen





2nd gen



If that is truly the case, then I'm seriously thinking of ditching this tranny completely in lieu of the RC62F.

 

it should. pretty sure people have put a fj case into a 3rd gen

 

The FJ case has been put behind the 3rd gen manual but it took some grinding on the transmission

https://www.tacomaworld.com/threads/fj-case-in-a-3rd-gen-tacoma.571689/

 

yeah thats right. cuz no where for the shift rails to go so you have to make room