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solid axle help. #823861 07/09/07 12:10 AM
Joined: Aug 2006
Posts: 598
DEFBOY35 Offline OP
Rock Warrior

I am looking for some information on the solid front axles from the early model toyotas. I believe the 8" is what it is refered to.

I have been doing alot of internet surfing and searching, and would appreciate some help in narrowing down some of the info i have found.

so here it goes:

- what are the weak points with the axles that i should be concerned about and look into replacing first?

- what is my best option for pushing out the wheel mounting surface to match the rear axles? I have seen just spacers, as well as a kit that moves the entire hub out.

( i believe i am trying to get out to approx 61.5" wms to wms)

- what is my best options for lockers for the front and rear axles for a daily driven vehicle? do the toyota e lockers hold up well?

thank you for all the help you guys can give me.

2000 SPORTY, DEF BOY customs, mmm....lockers, mmm... gears, mmm... double transfer case, mmm... stroker
From the Off-Road World
Re: solid axle help. [Re: DEFBOY35] #823862 07/09/07 02:18 AM
Joined: Jan 2001
Posts: 11,595
Adam F Offline
Forum Moderator
Weak points? It depends. How hardcore are you planning on getting? You can run up to 36" on a open front diff without problems. As soon as you lock the diff, you'll start breaking the CV axle, otherwise known as the "birfield". The best fix for that is www.longfieldsuperaxles.com There are other weaknesses, but those only show if you run 40" tires, locked, big HP or super low gearing, chromo axles, etc etc. Axle housings have been known to bend if you jump them too hard or run into a wall doing 60 <img src="/forums/images/graemlins/zombie.gif" alt="" /> You can buy or make axle and knuckle gussets such as the ones from http://www.marlincrawler.com/htm/armor.htm

Axle widths? What rig are we talking here? Here's some Toyota widths

Toyota Axle Widths:
(all widths are measured wms-wms, wms=wheel mounting surface)

* '79-85 front axle~ 55.5", rear axle~ 55"
* '86-95 front IFS~ 59", rear axle~ 58.5"
* Tacoma & '96-up 4runner front IFS~ ???, rear axle- 60"
* T100 front IFS~ 65", rear axle~ 66.75"
* Tundra front/rear~ ??
* '90-97 Landcruiser FJ-80/FZJ-80 front axle~ 63.5"

So, the front axle is 55.5". If your wanting to go 61.5", I think your best bet, if your determined to run Toyota axles, is to get a custom housing made from www.diamondaxle.com or run a FJ80 front end. Spacers work just fine for 3" or less as long as you properly torque them down and check them every once and a while. But I wouldn't recommend 7" spacers.

Toyota e-lockers are the way to go. Strong as anything Toyota. Dependable. They can be manually locked and unlocked in case of the locking mechanism fails (either the electric locking motor or a downey cable setup) You can get a used e-locker for $300-$500 and drop it in with a few modifications http://home.4x4wire.com/adamf/88/elocker.htm Then there's the ARB. Nothing wrong with it really, it works. But if the air supply is cut off (broken line, compressor takes a dump, etc) then your locker unlocks and you cannot manually lock it back up. Plus you need a source of onboard air ($200 on up) and you wont find a used ARB ($700 new)

Any other questions let me know

88 4R, 350 V8, R150 5 speed Sold <...uot; />
97 4R, stock, daily driver
98 Sienna, kid and dog hauler, wife's ride

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