Mating an R151 gearbox to a G52 Transfer Case

[leehamescort]

Thanks, awesome help guys, thanks a lot.

My twin transfers are both top shift as I have the first hole after the normal gear shift blanked off.

Does anyone know where i can find some instructions on pulling the transfer apart? Is it a big job to change the input gear? do I need to change bearing etc at the same time?

cheers
Leeham

[v6hilux]

Does anyone know where i can find some instructions on pulling the transfer apart?

Give it a few days. If no one can give you a link on the web, I could scan the factory manual, if the info is in there.

Just confirming, you want the diagrams for the Hilux manual shift gear type transfer?

[bulldogy]

This is for fitting Low gears but it shows how to take it apart.

http://www.trail-gear.com/tech/470install/470inst.html

Dave

[leehamescort]

Thanks for all the help guys.

got the marlin adaptor from lockedup4x4 and it all bolted up easy as.

I now have the R151 bolted to twin chain drive transfers.

Just waiting on the bellhousing from dellows so i can put the r series to the v8.

Cheers
Leeham

[a1 mech]

Just a bit of a highjack here, am I rite in thinking that a W56 5spd from a 86 IFS 2LT surf wud hav a topshifting geardrive transfer??? Cheers

[GETNHI]

Can you post some pics of the transfers on the box, cheers.

[MissDrew]

Thanks, awesome help guys, thanks a lot.

My twin transfers are both top shift as I have the first hole after the normal gear shift blanked off.

Does anyone know where i can find some instructions on pulling the transfer apart? Is it a big job to change the input gear? do I need to change bearing etc at the same time?

cheers
Leeham

Pic by pic on how to pull a transfer case apart
http://www.outerlimits4x4.com/ftopic131 ... ting+duals

[megabuff]

hi all

so i can put a R150 box in a 83 hilux and use the chain drive transferr case and it will be ok?

the chain drive will be as strong as the gear one?

in which case I will just need new or moded drive shafts I assume?

The R150 will handle a 308 as good as a supra box?

[megabuff]

R15# is 23 spline
G52 with geardrive transfer is 21 spline
G52 with chaindrive transfer is 26 spline
I have grafted the R151 housing onto the G52 housing and made a 23/21 spline couplers
I am wanting to cast some housings now

how do you do this please?

do you have a work shop where you do this work yourself?

[megabuff]

so do you have to change over the tranferr case like ferrit is doing?

or can i get rid of my G52 and gear transfer case and just put the whole R151 box in?

of coures i will have to mod my drive shafts to souti the new box, but aort from that, any other issues?

do the R151 untis have an electornic 4WD engager or can oyu get them with a manual stick shifter?

[a1 mech]

You can swap the whole R15* unit box/chaindrive in or you can purchase an adaptor kit from locktup to bolt a geardrive. Geardirve is a better option if you wan tto buy reduction gears down the track but not necessary.

U may get away without changing your driveshafts also but Im not 100%.
Boof runs a R151f with chaindrive behind his 1UZ as did Twisty with his 4runner.

[megabuff]

thank A! mech

do the R151 untis have an electornic 4WD engager or can you get them with a manual stick shifter?

[booflux]

thank A! mech

do the R151 untis have an electornic 4WD engager or can you get them with a manual stick shifter?

You can get them with both Twistys was manual mine is electronic for now until I put the gear drive case behind it later this year.

[toyrex]

Pics hope it helps man.
Foward shift

Top shift

I'm assuming the top pic is R and bottom is G?

Do you have pics to show the difference in R and G type?

Top box is a G series the bottom box is a W series. Both 5 speeds. Bottom box was common in early solid axle toyota surfs.

correction the top box IS a R151 NOT a G52
The G52 oil drain plug is on the bottem of the housing
The R151 oil drain is on the side of the box as in the picture
I made this housing for the R151 gearbox to G52 transfer case about 5 years ago

Adrian

[toyrex]

This is R151 with my cut and welded housing to fit a geardrive transfercase
http://i262.photobucket.com/albums/ii84 ... arbox1.jpg

[a1 mech]

If im not mistaken that is the demo photos off of the marlin crawler webite showing a topshift geardrive compared with a forward shift geardrive. top is a forward shift g52, bottom is a old surf topshift W56. neither of those is an R box as the oz R boxes r all chaindrive, only rare 22RTE american trucks run a R box with geardrive.