Richard's Funky Fire Truck

[82355]

The tire is pictured above, it has a tight tread pattern on the outside and a more open tread pattern in the center and inside. I would call it an all terrain.

Yeah, I see it. What is it?

Martin

 

[Richcz28]

3:08s 33s with the th400 were ok. Once I went to the sm465 it wasn't as pleasant.

I think massboy has a good setup with 3:08s, 32s?, and a 700r4.

 

[sweetk30]

those rims are civi h1 hummer rims and goodyear gs-a tread design .

 

[campfire]

3:08s 33s with the th400 were ok. Once I went to the sm465 it wasn't as pleasant.

I think massboy has a good setup with 3:08s, 32s?, and a 700r4.

Wait...things got worse when you switched to solid gearing (vs. running a loose torque converter)? That surprises me. Switching to the SM465 should have lowered engine speed. I would have thought that would increase happiness.

I think you're right about Massboy's setup. I have put 31" tires on my K10 (3.08/700R4) for testing purposes. If my shift points were adjusted a little bit I think it would work pretty well. As long as you aren't in a hurry (otherwise you'd never hit 4th gear).

 

[Richcz28]

Engine speed wasn't worse, but drive ability is. I just enjoy the standard. I have no regrets about my swap, but the new truck reminded me how well the th400 works with the 6.2.

 

[streetrodchev]

those rims are civi h1 hummer rims and goodyear gs-a tread design .

ah, civi explains it, I just don't see any civi H1 hummers in my area.

 

[riflerk20]

i've got a 700r if you want to try that.

 

[Richcz28]

I couldn't do all that work to stay auto, but thanks.

 

[jekquistk5]

I couldn't do all that work to stay auto, but thanks.

Lol.... That's a 2 hr swap. That's a lot of work?

 

[Chevy305]

Lol.... That's a 2 hr swap. That's a lot of work?

He means, if the transmission comes out then the next one going back in will require a 3rd pedal

 

[Richcz28]

Don't you have to get driveshafts shortened and lengthened?

 

[82355]

Don't you have to get driveshafts shortened and lengthened?

Not to go from a TH400/NP208(NP241) to a TH700R4/NP208(NP241). They are close enough in length that the slip yokes will make up the difference.


Martin

 

[Richcz28]

Do you know if the linkage and cooler lines line up? Is it just a tranny swap is my real question.

 

[82355]

Just have to make (or install an OEM) TV cable bracket.

Martin

 

[Richcz28]

I don't even know what that is. My th400 works. I really should just leave well enough alone.

 

[82355]

A TH700R4 has a TV (Throttle Valve) cable that goes from the tranny to the throttle linkage. It tells the transmission where the throttle is at. Kind of like a mechanical TPS. Controls shifts timing and firmness and line pressure (along with the governor, etc).

Martin

 

[streetrodchev]

Also for a TH400 to TH700R4 swap, the input on the transfer case needs to be changed. 32 spline to 27 spline and the adaptor too.

 

[Richcz28]

I'll just wait and go 3500 when the th400 goes out.

With chevy blazer temporarily out of action I can't take this apart.

 

[Mark1968]

Also for a TH400 to TH700R4 swap, the input on the transfer case needs to be changed. 32 spline to 27 spline and the adaptor too.

I hear those 5 speeds are 32 spline.

 

[streetrodchev]

I hear those 5 speeds are 32 spline.

I know the 4500 is, but don't know what the 3500 is.