Hey Guys,

I did a bunch more research, and was able to find out that Novak adapters makes a tranz to bell, adapter for the Jeep ax15 trans/Toyota R154 tranz. They both have the Aisin bolt pattern, (front of tranz). The other side of the adapter is for the common, Borg Warner T5 GM bellhousing.

What this means is, I can use a 87' to 90' Firebird/Camaro 2.8 V6 w/manual transmission, bellhousing. As an added bounus this bell has dual starter pockets (L/R) so it is good for almost any GM metric V6 to Aisin conversion that you please. Remember I'm talking about metric V6's not the Chevy pattern 4.3, 5.0, 5.7 or the old b.o.p. pattern 3.8.

To Me this is very Big, and makes My swap easier and cheaper.
(Thanks to Greg, the cat skinner)

Heres a pic of the 87 2.8 bell, it came in friday. Notice the Dual pockets for starter placement, and a second angled set of trans mount bosses.(same pattern) Maybe possible to angle tranz for more tansfercase ground clearance?




This bellhouse is 6 3/8"ths deep. The adapter is about 1" thick, so that means I'll have to use a 96' or later tranz that has a 7 1/2" input shaft, I think I'm going with an R150F.






This is My test truck,...... yea I know,... it's been part of the Wis. weight reduction program for quiet a while now. This truck is actually decent, for the year, up here. I've seen the Toyota frames fold under from the rust. The frame on this one is actually pretty clean.

I could have made it over that snow, if My bumper would'nt have hit the ground first. (maybe a future mod. lol)


I'm ordering the Novak adapter tomorrow, $300, and will post pic's when it arrives,

The Firebird engine should also be here soon.

Thanks Kiwi

 

Need some help to restore and mod my pickup. First I wish to regear the 5sp r150f tranny ratio. I can get a 5.15 1st, but I also want a 2.141 2nd, standard 3rd, .972 4th, and a .805 5th. Anyone know how and where to get the proper gears. I have no wish to do any swapping of Trans and motor, just rear Disc and ABS from 87 – 90 Toyota Supra. Wish to Supercharge motor.

SR5 Pickup 3.0 VZ-E, R150F 4x4

 

Hey Guys,

Another problem. The 99' Taco R150 trans/transfercase, I was going to buy, has a left hand, front drive shaft, My 90' pickup is right hand. What 96' and up R150 am I looking for? It has to be 96' and up because I must have the 7.5" input shaft.

Please help if You can.

Thanks Kiwi

 

Youre going to have to get a 88-95 t-case and bolt it on the back of the 96+ tranny.

 

Hey kiwi,
Here's a resource for you, maybe it will help:
http://www.marlincrawler.com/htm/tra...ansmission.htm

He also has information about transfer cases. That site should give some info about how to differentiate between gearboxes and some of their details.

 

Thanks Greg,

Does the transfer case I need, have to be from, an R series? Or will My 90' 22re transfer case bolt up, without an adapter.

Thanks Kiwi


edit: Thanks Rust,

I went to Marlin and found that 23 spline transfer case input shaft, that will let Me mate My 90's existing transfer case, up to the 99' taco V6, R150f transmission. For $159.

If this works, I just solved My drive shaft flange problems also.


Thanks Kiwi

 

I’m trying to build a close ratio tranny for street racing, that’s why I’m looking for the tranny gears. 2 shops in town state they can do it but not till the end of summer. Neither will tell me where to order the gears and shafts, they just say though Toyota. I already have 4.10 in the rear axle; bought an ARB air locker and will install when I rebuild my rear axle around the end of April.

I can get a tranny with a 5.15 gear ratio for 1st, from “Marlin Crawler” online; they are willing to build it for me if I can find the gears or the info where they can get the parts from. I bought a short shift shifter kit from “LL Engineering”. So does any one know if I can use gears from a W59 for the 2.141 2nd, a R155F for the.805 5th. Anyone know how and where to get the proper gears. I have no wish to do any swapping of Trans and motor, just rear disc and ABS, also if anyone has info as to what I need to do to the intake manifold to supercharge the motor. When my ride was fresh it got 26-29 mpg at 60 mph, that’s why the change to 4th and 5th for more overdrive and lower rpm's for better city/highway economy. At 60 mph I be tachin at 2146rpm’s and at 70 2504 rpm’s in 5th, and 4th at 35, 50 and 70 mph I’d be at 1512, 2160, 3024 rpm’s, maintaining very good gas mileage.

SR5 Pickup 3.0 VZ-E, R150F 4x4, 31/10.5/15
Need to change tranny gears for street racing.
Standard gear ratio now is 3.830 / 2.062 / 1.436 / 1.0 / .838
Need to change to 5.15 / 2.141 / 1.436 / .972 / .805

 

The only thing magical about rising and lower your rpm's is the disappearing act the money does so we can get the speed we need.

 

I find this hard to believe.

If anyone would know about the gear compatibility, it would be Marlin Crawler.... the best way to get ahold of them is through their forum off their website.

 

I've spoke to them twice, talk to Angelo yesterday. They tell me they have had a few inquires as to what I want to do with putting in higher gears for 4th and 5th. I told them my $ is theirs when we get it all sorted out. And ya I did get great mileage, I was gettin 26-29 till my son got his drivers lic and blow the crap out of my truck. My dad used it for about a week and could not belive how little fuel he used. He was pissed cuz it got better than his ford 4 cylinder taht couldn't move things for crap.

 

Hey tc,

Are You saying, I also need an adapter plate, for the trans to transfer case joint? On top of the 23 spline input shaft.

I know you guys answer the same stupid a$$ questions time and time again.

I'm trying to "measure twice and cut once"

Thanks Kiwi

 

If you want to use a gear drive case behind a V6 transmission, yes, you need an adapter and the 23 spline input.

 

tc is correct. Unless you have a gear drive case from a 22rte 5spd turbo truck, which you dont have.
Dragon, you can mix and match W series and R series gears. they are way different.
What you can do, is put r154 gears in a r150 case. they are lower all around. (out of a mk3 turbo supra) but i doubt marlin will make a tranny with such a wide gear ratio spread. Lots of $ with no ROI.
Finally, unless its a 2wd single cab, you'll never get 26-29mpg with a 3vze, thats just rediculous, its plain impossible. but if you use imperial gallons instead of US gallons, i can see you hitting 25mpg.

 

Greg thank you for the information about the 154 gearing. I will call Angelo at Crawler later today to discus it. As for my mileage I can not prove to anyone that it is true, but that I did get that high of mileage, before my oldest son trashed my baby.( In just under 2 weeks he and his friend blow the clutch, flywheel, a head gasket, and smashed various body parts. NO he did not get it anymore after that and I had them pay for the motor and clutch job) When I got it my wife and I did the math over and over and depending on road conditions it rarely got less then 26 mpg at 60. On trips to Vegas when we would get on Hwy I-80 straight through none stopping we would get 420 some miles to a tank and I’d only have to put 16 gallons in. My only guess is my rear differential was replaced at one time and is much higher than the stock 4.10 I assume I have, but I won’t know till I pull it apart in April.

 

I don't think I would go that far Greg_Canada ... I think it's possible he could be getting this mileage, but it would be a "perfect storm" of coincidences.

- First, he lives at a relatively low altitude
- It is VERY flat around Milwaukee
- This is a truck (not a 4Runner), right?
- His RPM's would be too low to hold the gear if any of those weren't true

 

Hey Guys,

Yes, I can put a Taco R150 trans, on My 90' 22re gear driven transfer case, but I would have to buy, $510 worth of adapters to do it, add that to the Novak transmission adapter at $300. My shifter would also, be in the wrong place, I think I'm going to plan B.

Plan B; I bought a R150f trans assm. w/tcase, from a 91' 4runner 3.0. w/103k for $135. This setup drops on the right side.

It has the 6.5" input shaft, when I need a 7.5", so I'm going to pull the input shaft, and try to match it up to the longer, 7.8" AX15 Jeep input shaft. Then turn it down if I have to.

I've also found, dellowauto.com.au, they have adapters for just about any conversion you please, including mine. they also have input shaft extensions.

The problem with dellow is you have to wait untill they are open to call them, about 1am My time. They dont have online ordering.

Thanks to all, Kiwi

 

Hey Guys,

I got the R150F (from 91' 4Runner 3.0) apart, and I think I got a pretty good deal for $135. All bearings and syncros look good, I'm just going to swap the 6.5" input shaft for the AX15 7.5" shaft, reseal it, and call it a day.

Will post comparision pic's of the input shafts when the AX15 shaft arrives. Hope this works.

I got cold feet on ordering the Novak adapter, untill the transmission is correct. The adapter pic is from the Novak web site.


The 91' R150F





The Novak large Aisin pattern/GMT5 adapter. .93" thick





The Toyota R150 F to GM T5 Bell house comparision. Both about 6 3/8th's deep. Looks like the Toyota 3.0 had a rear main leak. Hmmm....






Front side of the R150F's chain driven transfer case. Right hand drop, Yeah!






The famous 5 bolt bearing plate, on rear of t case, identifing a chain drive transfer case.



If any of this is incorrect, please pm Me, and I will edit as needed. I'm still not sure about a few things, but I'm learning daily, and would not enjoy a technical spanking, from a "nerdy YT'er", lol.


Thanks to all, Kiwi

 

Hey Guys,

Ax15 shaft arrived this morning, I could not take the suspence any longer, so I dropped everything, and pulled the R150's input off. Then compared the shafts with a Verniers caliper...........It fits! I still find it hard to believe, because this makes My swap almost to easy/cheap. Yea, I know I have a long way to go, but I'm much more familiar with the GM V6 tech then the Toyota stuff.

Remember the reason for this swap, is fuel mileage, so I had to have a Manual trans. I can see a good thread on Man/Auto comming soon, as I read yesterday, some ceo saying that thier new auto transmissions were as effiecient as manual transmissions. We'll see.

Anyway, I dug up a 94' Bonneville ECU that I will use for the 99' 3800, I'm using the 92' because its memcal, is flashable for different fuel strategies, and it does not have the after cat O2. Oh yea, its free, and this is also a low budget swap.




I dropped the counter shaft, and set the Toyota shaft free.






Yes! The AX15 shaft fits.






Dont we all want a longer shaft now?






Up close comparision. I would have paid $20 for this picture 3 weeks ago.



So I'm using the R150 input bearing over again, it feels good, and I know it will fit the case. plus its already paid for.


I'm now confident enough, to order the novak adapter, and bolt all this together. It looks like I'll have to trim the shaft length about 3/16th's. I'll also be able to use a stock GM pilot bush.


Thanks Kiwi

 

Hey Guys,

Super Cool, gear ratio, tire dia., RPM, calculator, crawler stuff included

http://www.novak-adapt.com/knowledge/gearing.htm

More cool; Power is fuel economy stuff, fits well in this thread.

http://www.novak-adapt.com/knowledge/fuel_economy.htm

Look, Kiwi learned how to copy and paste! (still cant type, Mavis Beacon let Me down)

Thanks Kiwi


edit; Regardless of make the theory is still the same.

 

Hey Guys,

According to the Novak calculator, I can spin the 3800 V6, 2344 rpm's, @ 65mph, with a .838 5th gear (R150f's), and 4.10 diff gears (existing). If I use 265/75/16's, assuming a true 32" tire diameter.

I believe that was the tire size, mentioned by tc and Greg_Canada, Thanks.

The 2344 rpm is very close to My target, for this motor.


My last Miler was a 96' Bonneville, 3800, that would achieve 30+mpg Hwy, with minor modifications, repeatedly.

Granted the Toy pickup has the aerodynamic drag coeffient of a brick, as well as the parasitic drag from it's front axle, but its also about 900 lbs lighter, then the Bonneville. I also, now have the advantage of a manual transmission, 6-8%.

I Dont expect the same results.

So that brings Me to asking of Your experience with tires, What would be My best tire choice, the best compromise between, light weight (no LT's), closest to 32" dia., durable, hwy/offroad tread, cost efficient. In a 265/75/16

Now I,m not asking for much am I. lol

Thanks, Kiwi

P.S. The Novak adapter is here, and trans assm. has begun. Taking lots of pics, and should have a write up Sat. evening. A little heads up, I'll be using a clutch disc, from a 1977 Pontiac Tempest, it gets better lol.