Front differential questions.

[tercel4wdrules]

I have both ratios and I agree that the 4.10 is much better than the 3.73, acceleration is noticeably improved in 1st, reverse, and 5th gear. Perhaps the 3.73 would make a little difference in mpg if you were planning to cruise at 75-80 mph, but cruising at 60-70 mph there isn't much difference in fuel economy. Just make sure you have your base timing set at 10* BTDC and you will see over 30 mpg, although I have achieved 35+ mpg with either ratio on 100 mile trips, depending on a variety of factors.

[Tercel_jon]

Thanks guys. Ill definitely be checking out that rear end in the corrolla and looking for all the tags.

Thanks also for all the input on the mileage. Ill let yall know what I find at the yard saturday.

[Tercel_jon]

The corolla I found at the yard...was a 2wd. Searched 3 other yards and didnt find anything but a cressida which i got the roof rack off of and the mud flaps.

Would the rear axle off of a 86 cressida work? Looks to be the same mounting set up. I looked for tags on the axle and didnt find any. Any Idea what ratio the 86s had? Cause if its 4.11s Ill run down there early one morning and get it.

[xirdneh]

[quote="Tercel_jon"]The corolla I found at the yard...was a 2wd.

[quote]
not sure what that means in this case
did you mean front wheel drive?

[Tercel_jon]

Yeah....thats what I meant. front wheel drive.

[Petros]

if I remember correctly the Cresseda was much heavier car. If axle mounts are the same you might consider replacing the whole rear axle assembly. You might have to have a custom drive shaft made to match the larger flange in the heavier rear axle.

Good luck.

[ARCHINSTL]

Depending on the year of the donor car, the Cressida was 1 to 3 inches wider in the rear track - won't that make a difference in installation and fitting?
You might also snag the front interior overhead light module - (I believe) member MootsMan has some interesting info on installation.
Tom M.

[Tercel_jon]

Damn...you're right about it being a tad wider. I took the roof rack off of it and it barely fits on the terc. I will be snagging as much interior as possible. The Car is BEAUTIFUL and its a shame its in the junkyard. Its got a blown motor...and 4 cars away from it is a 88 supra with the same motor... If only I had the cash. I did buy the rear bumper off the cressida cause it had the hitch i wanted and i couldnt remove it with simple hand tools. The bumper is the SAME WIDTH as mine...hang on. shit. I forgot the tercel tapered up to the roof. Maybe the rear axle is the same...but I cant tell if its got 4.11s. Tried turning the shaft, couldnt get both axles to turn at the same time.

Back on track to finding a rear axle before winter. Is it possible to order the guts for a later model terc with 4:11s and just put those in my rear axle? I would like the all-trak axle though. Im calling several toyota dealerships in Durham tomorrow and Im gonna see if they can sell me an entire rear axle for a 1990 alltrak with 4.11s. I know ordering from the dealership is gonna be pricey...but it looks like my only option now.

[ARCHINSTL]

Well - the rear axle housing alone lists for $806 (Butler has it for $604). Note that this is the hollow housing only - no axles, gears, covers, bearings, or case.
Tom M.

[Petros]

I would try to locate a 4.11 diff from another '85 or newer Tercel4wd, it is an each change over and it only involved the center diff mount. If you can hold one wheel still and turn the other with the input shaft it should turn exactly double. so with both wheels turning it will take 4.1 revolutions of the input shaft for one full turn of the rear wells (mark it with chalk), and with one wheel turning it should take 2.05 revolutions of the input shaft.

[Tercel_jon]

Well - the rear axle housing alone lists for $806 (Butler has it for $604). Note that this is the hollow housing only - no axles, gears, covers, bearings, or case.
Tom M.

Yeah I called the local toyota dealer...he wanted it for $400 without any guts. I told him I could buy an entire car for that much to which he prompty said "If you can find one". Touche mister salesman...touche.

and with one wheel turning it should take 2.05 revolutions of the input shaft.

This will help me immensely. Cause I couldnt get both axles to spin on that cressida. Yes Im going after that axle FOR NOW. I do want to go back and get some interior parts. Ill take measurements of both before I pull it. But it seams the terc and the cressida are the same width at the bumper at least.

Im aiming to get the whole interior cause its such a nice blue.

Edit: The mounts on a tercels bumper are a whole inch wider apart than the ones on the cressida. Ill just swap the covers than. Wonder how much of a pain it would be to swap the front bumper. Guess Ill be taking measurements the next time I go.

[Barto]

Ok Quick Simple and Dirty.

First that Cressida Axle is way wider then the factory axle in the tercel which means that without a HUGE lift you wont be able to clear the rear tires on the fenders.
Second the axle is physically larger and all of the mounts are different. So it wont bolt in and it will leave you way less room for the exhaust to snake through more custom work............
Third the cressida uses a 7.5" ring gear same as the front of IFS 4x4 trucks and rears of 2wd trucks. so the third member will not fit in your housing.........
Fourth You will need to upgrade the entire brake system on ur car because it won't keep up to the substantially larger drums needing more fluid and pressure on the larger Axle...........
Fifth The bolt pattern is going to be 4x4.5" (RWD 4 bolt) So now you need 2 spares or to find matching rims with different patterns. (not impossible but more work to do)

I am not saying it cant be done but why? Take it from a guy who BEATS THE HELL out of my car that the rear Axle in these things are not the weak link. Seriously just look for a 4:10 third member and bolt it in ur car.

Try searching auto wreckers further west to find one. I have three in my shop but shipping one to the east coast would be a huge hassle I think.

You could have all of this solved in about an hour if you just find a 4:10 third and go that route.
All this info is just my 0.02$ take it how you want, but I think ur going about this all wrong.

look at this site and it will teach you how to check axle ratios in toyota vehicles with out any hard work......

http://www.toysport.com/Technical%20Inf ... ations.htm

[Tercel_jon]

Thanks Barto.

That answered all my questions. And that link will help me later on.

I was sent some leads via PM from Tercel4wdrules for tercel 4.10 rear axles.

only main reason I wanted to fully upgrade it was cause I believe in having everything stronger or beefier than it needs to be. Granted those disc brakes and the optional locker on the all-trak axle would be nice, but between not hearing of anyone breaking their axle, and being strapped for cash right now, Imma go your route.