1991 Toyota Pickup SR5 build/adventure

[Staggerlee]

The V6 trucks with automatics and 31" tires got 4.88 from the factory. A V6 5 speed truck with 31" tires got 4.56 gears. A 22R-E truck with 225/75R15 (28") tires and 5 speed got 4.10 gears and an automatic 4.30. Far and away the most common gearing is 4.10 and the least common is 4.88.

Note that the 4.88 factory gear set is slightly different (thicker) than the 4.10/4.30/4.56 so the third members are unique. Aftermarket 4.88 and 5.29 gear sets work in 4.10 (etc.) housings but factory 4.88 gears only work in factory 4.88 diffs so you're hemmed in if you go that way. I re-geared my 4.10 third members rather than used factory 4.88 personally.

On trucks 1995 and older you can use the build plate to determine gear ratio.

Toyota Differential Identification: Off-Road.com

Do you know what kind of differential your Toyota has? This article will help you determine that and give you some pointers on how to work on it.

www.off-road.com

A G07 is an 8" 3.90 (the front on a 1991 would not be an 8" but rather an IFS 7.5" but the axle code is relative to the rear axle). A G08 is 4.10, G14 is 4.88, etc.

G254! Looks like its the 4.55

 

[VanWaLife]

That's really a nice looking truck! For what it is worth I've been real happy with front/rear Trutracs with 4.88's in my 22r powered '85 (kind of a different beast though). Pretty much the only time I spin a tire is if something is stuck against a rock.

 

[NORDFORD]

If you’re going to live out of this and it’s your primary transportation to work, you’ll get tired of breaking down camp every.single.morning. And then tired of setting up camp every.single.night.

 

[Staggerlee]

If you’re going to live out of this and it’s your primary transportation to work, you’ll get tired of breaking down camp every.single.morning. And then tired of setting up camp every.single.night.

Luckily when I'm local the bike gets me to work. I only plan for living out of it for max 2 weeks. If I end up staying out longer the idea of getting it set up with a camper set up seems more likely.

 

[Staggerlee]

Alright everyone. Ordered up the OME suspension set up from offroadwarehouse.com. They had a 10% off coupon and free shipping. SWEET!

Went with:

303003 Torsion Bar Set
60072 OME Nitrocharger Sport Shock x2
CS019R Lead Spring x2
OMESB43 Bushing Kit x2
OMEU53B U Bolt Washer and Nut x4
181469 OME Sleeve x2
OMESD33 OME Steering Damper

I've got some questions for everyone out there:

1. Should I replace the control arms, tie rod, balls joints and sway bar while I've got everything yanked apart? Pitman arm and Idler arm too for the sake of it?
2. Best places to get those parts if yes
3. Greaseable shackles for the rear? Y/n?

Looking at you for guidance @DeskToGlory , @Ruined Adventures , @RedSR

 

[Staggerlee]

The brakes may have been put on the project. Was having some rough idle and diagnosed cylinder 1 was indeed misfiring. Electrical checks out and timing was solid. Thought it could be a clogged fuel injector because when I pulled the spark plug it was dry. Was going to possibly pull the fuel injectors just to double check but decided to bring it in instead.

Brought it to the shop and ran a compression test and it looks low across the board and 0 in cylinder 1.

What is everyones experience and or thought on diving into this current engine and seeing if there is something that can be done or swapping out to a more reliable engine like the 3.4?