Notices
86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

I want some 4.10 gears for my 2wd

Old May 16, 2010 | 10:41 AM
  #21  
DethYota's Avatar
Registered User
 
Joined: Oct 2009
Posts: 172
Likes: 0
From: San Diego, CA
Thank you Zuk! I will definitely be calling them. I want to do a locker within the next year so having gears ready for them to install at the same time is crucial to my wallet. THANK YOU!
Reply
Old May 16, 2010 | 11:56 AM
  #22  
JamesD's Avatar
Registered User
 
Joined: Sep 2005
Posts: 2,074
Likes: 1
From: Binghamton, NY
Originally Posted by yayfortrees
FYI (no one in particular), I have found one 2WD V6 truck, that was running a 7.5" 3rd. It was a 5 spd (R150). Unfortunately, not all V6 trucks ran 7.5" 3rds.

JamesD, just so we're all on the same page, a 3rd member out of an IFS diff will directly replace the 7.5" 3rd from the rear?

Also, if I find a stock 4WD truck with a 4.10 gear code, will that mean the front 3rd will also be a 4.10?

Thanks everyone. Until this thread, I thought I was going to have to live with my gears until I came up with the money to buy the new 3rd. This could be a much better alternative.
Originally Posted by ZUK
Ya...the front low pinion 7.5" gears are the same fit as the 2WD low pinion 7.5" rears....there are a few 2WD trucks that have a ridiculously low ratio of 3.1 or something like that that have a different pinion offset due to the oversized pinion head....but the higher ratio 2WD's have the same 3rd member offset as the front 4X4 gears. Any questions about if a specific one will fit should be answered with a phone call to the guys that really know ....Jeremy or Carl at http://justdifferentials.com 1-866 349-6801 they probably have used 7.5" gears that they can sell you for cheap also.
What he said
Reply
Old May 16, 2010 | 10:40 PM
  #23  
yayfortrees's Avatar
Registered User
 
Joined: Mar 2010
Posts: 485
Likes: 0
From: SE Kansas
3.07? Wow, I couldn't imagine that kind of gearing, at least not with any AT tire. Unfortunately, I need to go the other way.

I will definately be giving justdifferentials a call, first thing Monday morning.
Reply
Old May 16, 2010 | 11:15 PM
  #24  
yayfortrees's Avatar
Registered User
 
Joined: Mar 2010
Posts: 485
Likes: 0
From: SE Kansas
After going back to a page I've been to several times before, I found some really good info. (Red text)

From Erik's Toyota Differential info page (http://home.4x4wire.com/erik/diffs/), describing the 7.5" IFS Diff:

"'86-95 IFS trucks and 4Runners, and all '93-98 T100s use a 7.5" front diff that is offset to the passenger's side. Later models came with ADD (Automatic Differential Disconnect) which uses a vacuum actuated mechanism to disconnect the drivers side axle shaft from the differential. Carriers and gear sets are interchangeable between the two different versions (and also happen to be the same as used in the 2wd Toyota pickup 7.5" diffs). One difference between ADD and non-ADD diffs is that the carrier in an ADD differential has needle bearings supporting the axle shafts at the differential. The non-ADD diffs did not have this bearing and sometimes the passenger side axle flange wears the carrier and becomes loose or wobbly, eventually causing oil leaks, noise, and possible spider gear damage. ADD and non-ADD diffs are swappable as are most of their parts. This makes it possible to change your ADD diff to non-ADD by simply swapping parts as I've done in the picture to the right. This is desirable to some people since some of the ADD stubs are smaller diameter than the non-ADD stubs and are therefore slightly weaker.
- Passenger's side
- Low pinion
- 27 spline axles
* This diff is based on the 2wd pickup 7.5" rear diff- same internals, different housing."

I guess I never read about the IFS diff, since I didn't figure it applied to me at all. Thanks again everyone.
Reply
Old May 16, 2010 | 11:27 PM
  #25  
DethYota's Avatar
Registered User
 
Joined: Oct 2009
Posts: 172
Likes: 0
From: San Diego, CA
Good stuff! soon we will be back to doing 60-65 in 5th gear!
Reply
Old May 16, 2010 | 11:29 PM
  #26  
camo31_10.50's Avatar
Registered User
 
Joined: Aug 2007
Posts: 5,334
Likes: 4
From: Vian, OK
nice research! i didn't know about the needle bearings on the ADD housings...thanks!
Reply
Old May 17, 2010 | 05:07 AM
  #27  
Yopar's Avatar
Registered User
iTrader: (2)
 
Joined: Jun 2007
Posts: 421
Likes: 0
I have a 7.5" ring & pinion 4.10, Toyota oem in real nice condition, never made any noise, if anyone needs it let me know, it came out of my IFS third carrier. Just pm me a message.

--

Last edited by Yopar; May 17, 2010 at 05:09 AM.
Reply
Old May 17, 2010 | 12:08 PM
  #28  
Magnusian's Avatar
Registered User
 
Joined: Oct 2009
Posts: 1,499
Likes: 1
From: Downtown Heckronto, Ontario, Soviet Canuckistan
Originally Posted by yayfortrees
3.07? Wow, I couldn't imagine that kind of gearing, at least not with any AT tire. Unfortunately, I need to go the other way.

I will definately be giving justdifferentials a call, first thing Monday morning.
It's geared that way so a 4spd truck can maintain highway speeds while in 4th without grenading the motor. Murder on the acceleration though.
Reply
Old May 18, 2010 | 03:30 PM
  #29  
SSGPohlman's Avatar
Registered User
 
Joined: May 2010
Posts: 5
Likes: 0
From: terre haute indiana
Fairly new here but been doing research and iirc the 4:10 is a 292 code 29=410 and 2=pinion, as I have a G292 code last number being a 3 or 5 is LSD but 2 n 4 is not. As for 4:10 gears I was out in the "yard" today and picked up some parts (header, grant steering wheel and overflow tank for $20) but while I was there I looked for an LSD 4:10 and didn't find LSD but there ere plenty 292 codes and bout 10-12 yotas even a 79' but if ur looking for them call or look up Mecca auto salvage, Brian runs the place I went to school w him real easy to deal n will ship too
edit: 765-569-6520 easier to call n ask as apposed to the website it can be a lil bit off.

Last edited by SSGPohlman; May 18, 2010 at 04:05 PM. Reason: Add info
Reply
Old May 18, 2010 | 05:07 PM
  #30  
yayfortrees's Avatar
Registered User
 
Joined: Mar 2010
Posts: 485
Likes: 0
From: SE Kansas
Cool, thanks for the info. As much as I hate to be price shopping, I kind of have to right now. I'll give him a call and see what he's got, and how much. Thanks again!
Reply
Old May 18, 2010 | 08:01 PM
  #31  
killianbrody's Avatar
Registered User
 
Joined: Mar 2010
Posts: 12
Likes: 0
From: Bois D'Arc MO
Hey yayfortrees I live near springfield mo I see you are in SE Kansas I have an 87 4runner with add parts truck with 4.10s if your interested let me know I'll make you a good deal and pull it before I send it to the crusher.
Reply
Old May 19, 2010 | 09:25 AM
  #32  
yayfortrees's Avatar
Registered User
 
Joined: Mar 2010
Posts: 485
Likes: 0
From: SE Kansas
PM sent, thanks!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
smthwsn357
86-95 Trucks & 4Runners
15
May 1, 2024 07:28 AM
Shaun Crystal Gomban
Pre 84 Trucks
5
Jul 30, 2015 10:13 PM
justdifferentials
Just Differentials
0
Jul 22, 2015 08:26 PM
colasurdo
Prerunner & All 2WD Rigs
0
Jul 16, 2015 11:32 AM
hexrain
Prerunner & All 2WD Rigs
4
Jul 12, 2015 01:13 PM


Thread Tools
Search this Thread

All times are GMT -8. The time now is 04:01 AM.