Topic: Trans Gurus: R150F Questions

[Plainview]

I'm trying to figure out the various R150F transmissions. 

According to https://www.marlincrawler.com/transmission the R150F was used for '88-'95 3vz-e and '95 - '05 5vz-fe.

If you go to the rebuild page that shows the pictures (https://www.marlincrawler.com/transmission/rebuilt-complete) it shows the R150F and an R150F for T100.  The T100 application is a top-shift according to the pic while the other R150F applications appear to be forward-shift.

If you go to the R150F rebuild page (https://www.marlincrawler.com/transmission/rebuilt-complete/r150f) it breaks them down by three different year ranges, each of which has a different core charge, so there must be some internal differences.

I'm mainly interested in forward-shift applications.

1) Are there significant differences between the 3vz-e and 5vz-fe applications?  Are the newer 5vz-fe stronger?

2) Are these transmissions strong enough to handle significantly more than stock power levels?

3) How can you identify the original application for one of these transmissions?  If an '89 R150F was sitting next to an '04, how could I tell which was which?


Thanks for any help with this!

[helipilot77]

Going to guess that the one for the 5vz can handle more power than stock since adding the TRD supercharger did not affect the warranty.

[Plainview [OP]]

I'm surprised there isn't more knowledge about these transmissions given how they were used behind all the V6s in the late '80s to mid '90s.

I've picked up little tidbits here and there.  Apparently at some point the slave cylinder got moved to the driver's side on them.

Contemplating going up to look at a '93 4Runner that's parting out to see if I can get more info on the trans and maybe buy it if its cheap enough.

[LittleSteve]

I wouldnt have thought there was a massive amount of difference between them, check your input lengths...
They are a lot lot stronger than the w/g series and should cope with any Toyota motor you can put in front of it.
Ive seen R151,s burn input bearings and gears out due to bad lubrication.

You can only tell r151 & r150's apart by figuring out first gear ratios as externally they are identical unless it is a 22ret 151 as the output adapter is different

[Plainview [OP]]

Marlin's pages only show an R151F for turbo applications.  R150F for everything else. Are there other applications for the R151?

At this point I'm mainly concerned with how to tell the difference in the years.  If you want to buy a rebuild from Marlin they want to know if it's an '88-'91, '92-'95, or '96-'04.  They charge more to rebuild the '96-'04 models and the core charges are different for each one.

This makes me think there are internal differences and maybe one application is stronger?

If I was buying one off Craigslist or from some wrecking yard, it would be nice to know exactly what I'm getting.  So there are no numbers stamped/cast anywhere on them that distinguish years or models?

[Plainview [OP]]

Here's another question....

The picture on Marlin's rebuild page shows the R150F as a forward-shift trans but the ones I've found on Craigslist are top shift.

What's up with that?

[helipilot77]

In the US we only saw R-151's behind 22-ret's with a gear drive t-case, but in other markets they were used in diesel aplications. With a chain drive output.

[Willard]

Here's another question....

The picture on Marlin's rebuild page shows the R150F as a forward-shift trans but the ones I've found on Craigslist are top shift.

What's up with that?

The R150F I got for mine was out of a 94 4Runner. It is top shift. I don't know if the pic on the website is correct for the regular R150F. I haven't seen one with forward shift configuration? Even the spare one I have is top shift.....and I am pretty sure the internals on the T100 are the same as the older ones.....could be wrong though. Either way they are solid and will take a beating.

[Plainview [OP]]

Okay, sounds like maybe they got the wrong picture.  Maybe I'll give 'em a call too, to see if I can figure out why they have three different year spreads with different core and rebuild charges. 

I'd rather have a forward-shift configuration as it would fit in the truck better, but I'm probably out of luck on that.

A Marlin rebuilt R150, gear drive t-case with 4.70 low and Marlin's upgrade parts, and a V6 rear third member ought to give me a plenty stout drivetrain.

Keeping my eyes on CL for now.  Missed out on one for $100 about a month ago.

[OOPS]

If you have Marlin rebuild your 150F they can put a 2nd gear out of an AX15 Jeep tranny which is lower geared. I had it done and I like it!!

[LittleSteve]

In the US we only saw R-151's behind 22-ret's with a gear drive t-case, but in other markets they were used in diesel aplications. With a chain drive output.

FYI. The R-151's behind the diesels are the same configuration as the v6 R-150, need an adapter to make them work with a RF-1A transfer case, unless of course you have an R-150 out of a 70 series Cruiser which is an entirely different kettle of fish.

[Snowtoy]

If you have Marlin rebuild your 150F they can put a 2nd gear out of an AX15 Jeep tranny which is lower geared. I had it done and I like it!!

   
Is that the 2.74 2nd gear from the MAR515?

[Marlin]

No. Oops is referring to a 2.33:1 2nd gear that is only found in a R151F 22RET Trans or a AX15. All 3.0 R150's have a 2.06:1 2nd. May not sound like much but sure makes a difference when you are rock crawling. The 2.74 2nd is only found in a R452 with the matching input and countershaft

[Snowtoy]

I have read here and on other forums that the MAR515 is a rebuild option for the R151, is that correct?

[slimbobaggins]

Going to necro this post.  My G54 is dying and I'm thinking about trying to kluge a R150F behind it.  I read somewhere that the AX15 input shaft is longer than the R150F, but read somewhere else that early model R150F's had a shorter shaft, and late model R150F's had a longer input shaft.  Does anyone have solid info on this?

[redneckcustoms13]

Yes 3.0 r150 has shorter input shaft than 3.4 r150.

[slimbobaggins]

Thanks ^

[4Ruinned]

I think the r150s could be broken down into A, B, C, etc. like the W56s, but what do I know? 

[jetsupra007]

I put a r150f behind a 1jzgte running 18 pounds of boost and launched it and never had an issue.  I did this after i destroyed the w56 that came in the 95 4runner I dropped the 1JZ in.  Currently building a 85 4runner with a 1jzgte single turbo making 550HP with all the marlin upgrades and have so far had no issues.  The R series transmission is a stout transmission. 

[green200b]

Yes 3.0 r150 has shorter input shaft than 3.4 r150.

Any idea what the length difference is? I have an R150F here which I am planning on putting behind the 350 Chev in my '82, but I don't know if the input shaft length will be an issue.

[redneckcustoms13]

Do a search. I have seen it somewhere but can't recall the measuremental right off.

[chrisj03]

Need to know if the R150F Transmissions all had the same output shafts? I know input shaft lengths vary. Mine has some pretty worn output splines and i have a spare R150F that i was told came out of a late 90's 4runner. I believe mine is a bit older than that and has some noticeable differences when looking at the internals with the aluminum housings seperated from the intermediate plates of both trannies. The newer one has a bit smaller output bearing and shift linkage is a little different looking. Older one has a large output bearing and the lay shaft has a nut holding the end together compared to the newer one having a clip. Don't want to tear 2 trannies down to gears and shafts and find out the output shafts are just a little different. Would slightly piss me off. Things that i can measure with a caliper seem the same but still not 100% convinced. Any info or help is appreciated!