I have an Aus delivered AW11 that has an E50(F) gearbox. The cheapest rebuild I can find is http://www.drivetrain.com/parts_catalog/manual_transmission_overhaul_kits/toyota_4_5_and_6_speed_overhaul_kit.html#E50 which works out to about $1500 plus labor. KAAZ Close Ratio Gear Set for £2,640.00 would be nice but is worth more than the car.
I am wondering if there is a better solution. Different gearbox maybe. 
 
It's worth saving . Here's the Reddit post from 4 years ago. https://www.reddit.com/r/mr2/comments/1twmyq/my_guy_has_just_restored_his_1987_mr2_aw11_and/?st=jcpj2huf&sh=dd769610 and still beautiful for her 30th last November. 
 
Thanks
 
 
 
 
 

 

 

Just going to make a quick assumption here that you have an E50F gearset in an AW11 E51 gearbox case, otherwise the gearbox doesn't bolt up to a 4A motor AFAIK.
 
According to ToyoDIY, the part numbers for the synchro's are:

ToyoDIY Part Numbers

You can buy syncros, usually cheapest out of Toyota UAE warehouse, through partsouq or megazip or Amayama.

I can only speak with limited knowledge of the e153. Challenge / cost is not just syncro but actually rebuilding the gearbox, snap rings, bolts, bearings and other things, then plus labor.

Sometimes fixes on gearboxes can be as simple as changing oil, changing the consumable parts like bushings. Best of luck,

Sorry should have clarified. My engine has  MAP sensors and electronic ignition. I dont think it's an MR2 engine. I think it a Levin.

Partsouq is awesome. Thanks
 
Only 3rd is dying and I can double it if I get it just right. I will check the oil but I'm pretty sure it's the syncro.

Scratchie
Sorry should have clarified. My engine has  MAP sensors and electronic ignition. I dont think it's an MR2 engine. I think it a Levin.

Likely it's a 4AGE 20V if it's from a AE101/AE111 Levin.
My assumption would still apply as the E50F came with a bell housing to suit S series motors (3S/5S, etc). 
That list of part numbers will get you sorted on ordering the replacement parts, as per TonyMR2's comment, Amayama should be able to source these.

It's an agze supercharged engine. Sorry for my Frankenstein car. It looks pretty on the outside :) Maybe I sure use a more descriptive tag.

It's an aussie car with an engine gearbox transplant done 20 years + ago. 4agze with Map sensors. I don't really know where the engine is from. 

Okay, now we are starting to see more of a picture.
You really need to identify the gearbox correctly, because the AW11 4AGZE used an E51, the AE101 Corolla 4AGZE used an E58. While it is possible that you could have the E50F gearset swapped in, it's not good guessing till you know which it is, otherwise you might end up ordering parts that do not fit.

A couple of the guys on Toymods know my car and they think it's an E58. Knightrous you deserve Deity level for working that out without seeing the car.