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Useful R154 Gearbox swap infomation


Testament

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Came across this in my travels across the interwebs. might be useful for someone to know the r154 matches up to quite a number of things potentially. A340 is similarly used behind a bunch of different things you probably didn't realise

 

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 The Jeep/Dodge AX15 5-speed, the Jeep NV3550 5-speed, the Toyota R150F & R151F, the 87-92 Toyota Supra Turbo R154, the Isuzu AR5 and the Chevy Colorado\ GMC Canyon MA5 5-speeds all share the same case to bellhousing bolt pattern. As such there are a number of possibilities that can be had when a 5-speed is desired:

#1. Novak Enterprises: Adapter plate for AX15 to GM 4-speed bellhousing. Connects all except NV3550 to same.

#2. 94-95 Dakota 2.5L bellhousing: Connects all to any K car based 2.2L-2.5L L4 in a RWD application.

#3. 96-00 Dakota 2.5L bellhousing: Connects all to any Jeep 2.5L L4. Because of it's GM 60 degree V6 inherited bolt pattern, also works with any Buick FWD V6 and supercharged V6, any Chevrolet 2.8/3.1/3.4 V6, any Cadillac 4.1/4.5/4.9 V8 and with a minor modification, any Olds Aurora DOHC V8 and Cadillac DOHC Northstar V8. Also bolts to any Isuzu 3.2\3.5 DOHC V6.

#4. 88-99 Jeep 4.0L L6 bellhousing: Connects all to any AMC 290/304/343/360/390/401 V8 and any 72 and later 232 L6 and 258 L6.

#5. 94-99 Dakota 3.9L V6 Bellhousing: Connects all to any 3.9L V6 and any 273/318/340/360 V8.

#6. 96-04 Toyota Tacoma 3.4L V6.

#7. 86.5-92 7M-GTE

Not shown:

01-03 Jeep Liberty 3.7L V6 bellhousing: Connects all to any 3.7L V6, 4.7L V8 and 5.7L Hemi V8.

Isuzu Trooper 3.5 V6 AR5 bellhousing: Connects all to any Isuzu 3.2\3.5 V6

04 Chevy Colorado\ GMC Canyon MA5 bellhousing: Connects all to any 2.8L L4, 3.5L L5 and 4.2L L6

Aftermarket:

Advance Adapters: Bellhousing for AX15 to Chevrolet-Buick-Olds-Pontiac V8 and Buick V6. Connects all to same.

Advance Adapters: Adapter plate for AX15 to Ford bellhousing. Connects all to same. Also they have a plate for the NV3550 to do the same.

Suzuki Only Supply: Adapter plate to bolt R series to Suzuki 1.3\1.6.

Further info: Jeep AX5, Toyota G52, G58, W55, W56, W57 and W58 5-speeds all share a common face pattern on the case. As such, any 88-99 Jeep 2.5L bellhousing (NOT Dakota) will bolt a Toyota W series transmission to a 60 degree GM bolt pattern.

Aftermarket: Advance Adapters makes a bellhousing to bolt a W series Toyota trans to a Chevy-Buick-Olds-Pontiac block.

Northwest Off Road: Bellhousing to bolt W series to Ford 5.0.

Suzuki Only Supply: Adapter plate to bolt W series to Suzuki 1.3\1.6.


NOTE: Input shafts lengths vary.

Pre 1995 R150\R151 = 6.5"
1995 up Toyota R series = 7.5"
AX15 = 7.5"
87-92 Turbo Supra R154 = 7.25"
AR5 = ?
MA5 = ?
NV3550 = 7.5"
AX5 = 7.5"
Toyota W series = 6.5"

Advance Adapters makes an extra long pilot bearing when using a shorter input shaft tranny with a bellhousing that had a longer one. Obviously you can't put the longer input trans into a bell that had a shorter one.

Front bearing covers are interchangeable between the R series, AX15 and AR5. NV3550, AX5 and W series are not interchangeable.
 

 

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Good info! 

Also worth noting that brand new R154s are available at a decent price from North Shore Toyota parts department, when they started selling them over the last year or two it started pushing down second hand prices as people just buy new instead. (They are somewhere just under or over 3k brand new from memory)

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Yeah that was what got me looking at some things, it pretty much similar price between new r154 and a used t56

marlin crawler has some good info too

http://board.marlincrawler.com/index.php?PHPSESSID=3ac7a8abafd82e14ee1f71673e444f18&topic=2972.msg23634#msg23634

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Yes, parts are interchangeable between these trannys.
Inputs, output shafts, front nose cone, and rear housing are differance but generally can be interchanged if you stay with in the family.

There are three "R" familes;

86-91    early, simple, common, heavy design

92-95'    upgraded syncrows, hubs, shift rods and linkage, smaller bearings, lighter gears

96-newer    greater helix angles, upgraded syncrows, lighter bolts, reverse brake

The jeep 86-00' AX15 would use the same bearings, syncrows, and gears within the same family as the toy boxes. I am not sure of the Isuzu production years, but would also be the same.
Remember that only the 86-87' 4x4 R151F 22Rturbo got the 4.31 1st gear. 2x4 22Rturbos, got the 3.83 1st, along with all other 4x4 R trans--- Toy 3.0, 3.4 v6, jeeps, and isusu's.

The lowest geared R is the 5.15 1st gear found in the R452 inported trans which also uses the same bearings, and syncrows.

Hope this quick answer helps

MC

 

 

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2 hours ago, Testament said:

more complete info which I think that stuff in the first post must have been got from. pity the link he quotes at the beginning for the original source appears to be broken

http://www.celicasupra.com/forums/showthread.php?65106-R154-motor-compatibility

 

http://web.archive.org/web/20100128214844/http://www.jeeps-offroad.com:80/f41/engine-swap-bellhousings-4740/

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On ‎9‎/‎11‎/‎2017 at 17:00, HighLUX said:

So find a Jeep 4L manual bellhousing add it to a R151 from a Surf then manual convert a XJ Cherokee for excellent on and offroad clutch kicking fun times?

that one is no so straightforward - jeep front diffs are offset to the left where hiluxes are offset to the right. I don't know if the jeep transfer case would just bolt straight to the Toyota r154. then there is also potential driveshaft length differences. so you would need to do a fair bit of research to figure out what would work. may be cheaper to just import a complete ax15 gearbox/transfer pedalbox (although that would probably need mods since LHD) from uncle sam. but reality is its probably just not worth it - people like to hate on autos but differences are more in perception and feeling rather than real world capability and performance. infact autos have quite a few benefits offroad in some respects.

On ‎10‎/‎11‎/‎2017 at 17:02, drftnmaz said:

The new r154's available from toyota are the worst possible version of the r154, don't get one if you plan to have decent grip, we fell for that a couple years ago

+1, also keen to know what makes the newer ones worse? that is contrary to some of the information in the links above.

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We used the r154's for competition drifting with 400kw in-front of it, and during that time pulled apart 3 different r154's, 2 factory fitted boxes, one with remote shift the other without and then one new from toyota box, the old boxes when upgraded were awesome, fit the bearing plate mod, and shiftier forks (unfortunately only alloy available that i know of, off the shelf) but the late boxes which we refer to as the mexican r154s, were made to be alot cheaper, I even broke one when running it behind a n/a 2jz (so all of ~130kw?) On the inside of the gears where it would mate to the shaft instead of having teeth cut all the way around they have 3 teeth cut, then 3 missing and then 3 cut and so on, so you just strip these out quite easily, when disassembling the box, the main shaft normally has a 34mm? but holding it all together, but the mexican r154s have a pissy little circlip. Don't even get me started on the synco differences, we had toyota bring in 7 different syncro's to suit 4th gear and none of them fitted, ended up moding a r151 synco hub in there i think (mate does gearboxes for a job so this is just what i saw while him helping me with my r154's)

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