wanna go to 4.11s on my BJ70

Poser

Oh...Durka Durka Durka.
Supporting Vendor
Joined
Oct 1, 2003
Messages
20,461
Location
MN
Could you please state the year?
 
Joined
Jun 7, 2003
Messages
1,271
Location
Foam Lake, SK
Website
www.toontoys.ca
Any fine spline pinion 4:11 will work. Just swap the flanges with those on your 3.73s if they don't match.

I don't think any coarse spline pinion flange will match your driveshaft.
 

Poser

Oh...Durka Durka Durka.
Supporting Vendor
Joined
Oct 1, 2003
Messages
20,461
Location
MN
Alex...


Don't you have a five-speed in this thing?

GO DEEPER!!! Don't stop at 4:11.. :)
 

Poser

Oh...Durka Durka Durka.
Supporting Vendor
Joined
Oct 1, 2003
Messages
20,461
Location
MN
Oh, and then get those MARKS gears installed...

Should crawl around pretty good....
 
Joined
Oct 24, 2003
Messages
66
Website
www.rocklogic.biz
now i am on the 1987....

i wanted to just go with 4.11s 'cause i figured i could find those for free from someone upgrading to 4.56s or 4.88s, and then the 55% reduction of the new t-case gears, and see i still do want to keep some semblence of good fuel economy, and once i have the money for the turbo i should be sitting nice for highway driving again...gotta remember this is a daily driver and trail rig combined...

any fine spline, so, does that mean i am limited to fj62 and 1978 fj40?
 

Poser

Oh...Durka Durka Durka.
Supporting Vendor
Joined
Oct 1, 2003
Messages
20,461
Location
MN
You are correct!


Oh, and


Good luck! ;)

-Steve
 
Joined
Mar 14, 2003
Messages
16,100
Location
Gig Harbor WA
can also use the 4.11's out of the rear of any 80 series, these are prolly as(or more) plentifull then fj62, lots of guys swap to 4.56 or 4.88. this is what I used in my 86 fj60, I had one rear set from my 80, got another set for free.

fwiw I think the 80's are 4.11 and the 62 is 4.10 or it's the other way around, but they are different...not alot but just a bit.

John
 
Joined
Mar 14, 2003
Messages
4,517
Location
Between Here and There
alex.. you could almost use any 4.11 out of a cruiser. The easiest route have been posted above. older 40 4.11's are more plentiful... if you can't swap the flange bc of fine vs. coarse you can mate the drive shafts, you could run an adapter, you could redrill your flange.. etc. I have a set I'm putting in the 70 too :) I just need to get around to it.
 
Joined
Oct 24, 2003
Messages
66
Website
www.rocklogic.biz
Hey Wes, did you get personalized plates?!?!?!

Sounds like a lot of work to use the older 40 ones with coarse splines, let me know how your install goes!

So, how is my old truck? I miss it... Hope you are enjoying it, let me know what all you have done by way of mods...
 
Joined
Mar 14, 2003
Messages
4,517
Location
Between Here and There
Hey alex!!
you can create any plate you want to see in va at https://www.dmv.state.va.us/dmvnet/plate_purchase/select_plate.asp?PLT=&PLTNO=

I was going to do the 411 swap yesterday but the wind chill wasn't cooperating and It isn't a huge priority. Most likely next weekend. I'll let you know how it goes.

I ripped out the radio and cb to put in a cd and orig box so it's cleaner and closer to stock. Other wise things are the same beside some new fluids and a primer pump, and a few small things. Trying to save up for OME. I truely enjoy driving a 3B.
 

Users who are viewing this thread

Top Bottom