Handy Little Allison Trans Student Guide

[Third From Texas]

As I prepare to delve into the trans on my 94 for a checkup, I found this. It's a nice general overview used in training mechanics in the civilian world. I've found it handy and a bit less convoluted than the TMs. Of course it covers multiple models, but has some good info.

ymmv

https://emergencyresponse.spartanmotors.com/wp-content/uploads/2019/10/Dan-Cleveland-19-F-6-EVT-Student-Handout.pdf

 

[Reworked LMTV]

As I prepare to delve into the trans on my 94 for a checkup, I found this. It's a nice general overview used in training mechanics in the civilian world. I've found it handy and a bit less convoluted than the TMs. Of course it covers multiple models, but has some good info.

ymmv

https://emergencyresponse.spartanmotors.com/wp-content/uploads/2019/10/Dan-Cleveland-19-F-6-EVT-Student-Handout.pdf

Thanks! That's a very interesting document, packed with good info.

 

[Third From Texas]

Thanks! That's a very interesting document, packed with good info.

I thought so as well. It's an Allison class handbook for fire department mechanics, basically.

 

[Third From Texas]

Yeah, that will flush right out then good to go....err park maybe.

<grumble><grumble>

 

[Reworked LMTV]

Yeah, that will flush right out then good to go....err park maybe.

<grumble><grumble>

View attachment 824902

Water ingress?

 

[Reworked LMTV]

If you are overlanding, definitely get the Alison synthetic fluid. I might just flush it with motor oil to get the possible h2o out first.

 

[Third From Texas]

Lots. Looks like the truck was forded with the breather plug open. No cross-contamination to the engine (which is running awesome). I had seen it on the dipstick and pretty much knew the clutch packs were goo. Of course the t-case is goo as well.

Now to find a compatible replacement for a 3070

 

[Third From Texas]

I'm thinking that once it's chocolate milk, it's toast...

 

[Reworked LMTV]

Lots. Looks like the truck was forded with the breather plug open. No cross-contamination to the engine (which is running awesome). I had seen it on the dipstick and pretty much knew the clutch packs were goo. Of course the t-case is goo as well.

Now to find a compatible replacement for a 3070

Maybe a 3700?

 

[Reworked LMTV]

I'm thinking that once it's chocolate milk, it's toast...

Honestly, I would give the local Alison guys a call. Might be insightful.

 

[Third From Texas]

If you are overlanding, definitely get the Alison synthetic fluid. I might just flush it with motor oil to get the possible h2o out first.

Na, just going to be a beach truck.

I hate to dump $300 of oil into there to flush and refill. I've never seen an automatic that got wet that had clutches which survived.

 

[Third From Texas]

Maybe a 3700?

Yeah, that would have been the upgrade.

 

[Sutrnr]

I'm thinking that once it's chocolate milk, it's toast...

Eastern Surplus had 3070

 

[Reworked LMTV]

Eastern Surplus had 3070

Eastern Surplus had 3070

With convenient 30 yr financing. 30 yrs or 1 kidney.

 

[Sutrnr]

I know not cheap .... already paid for mine .... but an available transmission option.

 

[coachgeo]

For a transmission check with @SuprmanMake sure you match model to yr of your truck. they have different internal to transmission wire harnesses. Though my understanding is you can pull harness out of your transmission and swap it into the newer transmission if they are not compatible as is.