LUV24BY

I currently have a 1986 PU 4x4 4cyl Manual Tranny. IFS rear Axle. It has the stock ratio. It needs all the brake drum parts put on as they are all missing.

I could get a 1990 Toyota V6 Manual Tranny Rear Axle which I could probably pick up for $50-75. It is complete without any parts missing.

Should I give up the 4cyl for the V6 version?

The Candidate is my 1985 4 runner.

Thanks!

John

Firefightertaco

You need to find out the ratio in the V6 and make sure it will match up with the front ratio, but i would go with the V6.

Hayes

I didn't think there was any difference. Only from pre-85 to post 86.

MudHippy

Don't give up the 4cyl, keep it for a spare. The ring and pinion can be swapped with proper know how, if you wanted to go that route. Too bad it ain't a complete rear axle off a 1990 4Runner, they have larger brake shoes than PU's. I found one when I needed a new rear, the brake upgrade came as a surprise.

MudHippy

Here's a good link that tells the differences.http://home.4x4wire.com/erik/diffs/

LUV24BY

I was checking out Erik's page. The 4 Cyl like I said needs complete brakes (adjuster and all) on each side. I know the V6 diff is different, I just didn't know truly how much beefier it was aside from the bearings.

I don't know about keeping them both. I got a lot of spare parts already in the garage. So much so the wife can't park her van in the garage because of the parts truck I still have to finish pulling parts off of and then have it towed away. For some reason they told me the ratio was 4.33 on that V6 rear axle. I can't see that being true. I wonder if it was a factory 4.88 (limited options aftermarket if it was!)

John

MudHippy

4:33 gears isn't very likely, I've never heard of them. I have some 4:30's in a 4cyl 3rd member that came with an axle off an automatic 4Runner, standard gears for 4cyl automatics(no V6 4:30's have been made, not even for those with automatics). Pre-85 trucks came with 4:38's in some cases.

The case of the V6 3rd is thicker in areas prone to obstacle contact, namely the rib below the pinion and surrounding portion on the bottom.

I run the 4cyl 3rd member behind my 3vze, and have my V6 3rd (with the stock 4:10's) for a spare. I don't feel the need to swap the ring & pinion from the 4cyl to the V6. Since it's alot lighter it's less unsprung weight on my axle, which counts much considering the 35x12.5 tires I run. Besides, I don't think I've got much of a chance at killing the 4cyl, but I break lots of stuff so the V6 stays in the "just in case" pile.

LUV24BY

Yeah. I know the feeling about possible breaking it!! LOL I hate to see the situation that would grenade a Toyota 3rd!!

I just thought that if I was to spend the money on having to get the wheel cylinders, brake adjusters, arms, springs, clips, pins, shoes, drums and fix the backing plates on the 4 cyl '86 rear axle I got, by the time all is said and done I would have spend well over the $75 to $100 that I could have picked up a complete (V6 Pickup) rear axle for. I wonder too if I go to have the parts truck hauled off if I don't have an axle under it when it's tows it's going to be ell to get out of my garage. I haven't convinced myself yet - just up in the air either way and considering all avenues. Is $75 a good deal for a Axle? The guy says he thinks it only has 120k miles on it.

John

MudHippy

Yep, that's a steal. I paid $250 for one from an '87 4Runner, it had 180+some thous. on it. I had it open, and checked out all the guts, everything was in great shape. I shoulda shopped around, I didn't know about car-part.com.

westy44runner

The 86' 4cyl and v6 90' axle housing, shafts and brakes will be the same. The v6 diff is the one you want. It will bolt right into a 4cyl axle housing.

Remove all the parts in good condition from both axles...and sell the spare housing and misc parts. Not a bad idea to have a spare 3rd and shafts around...but for a mild build you will probably never need the axle shafts.

LUV24BY

Considering the only difference is the 3rd member (no, not Gold Member!! LOL) I think I will try for the V6 rear end. I will consider letting the other one go, I just don't know how much stuff I want to hold onto. The garage is ridiculous as it is!!

John

mastacox

Wrong wrong wrong.

My 1992 4Runner SR5 V-6 5-speed has factory 4.30's. It is by no means a rare option either.

LUV24BY

What can o' worms did I open now!! LOL Well, I will try and send some pictures up if this is the way I go (I hope, the V6 route that is!)

John

LUV24BY

Welp, missed out on the V6 axle. Just an FYI, the guy sold it before I could get there! I didn't have $$ till Friday so I was going to see it Saturday. Oh well, the 4 CYL axle will have to do!

John