NV4500 Profab Kit Durability

[cfunk]

I am looking at sending a trans out for the Profab 3 speed kit but I am wondering if anybody on here has any experience with it or feedback on how well it is holding up in the 2.6 class.

 

[slor1de]

What's a kit go for

 

[kjpcummins]

$3500. They seem to do alright in a 2.5 truck.

 

[cfunk]

$3500. They seem to do alright in a 2.5 truck.

That doesn't sound promising, what kind of problems have you seen?

 

[kjpcummins]

I havent seen any problems nor do i own one. Just think its alot of money to spend and dont like the fact you get direct and two slower gears.

 

[cfunk]

I havent seen any problems nor do i own one. Just think its alot of money to spend and dont like the fact you get direct and two slower gears.

I didn't think the price was all that bad knowing it includes the 1 3/8" input upgrade if it actually holds up. If it has strength issues that is another story...

 

[kjpcummins]

Another thing to consider if you dont use a winch is you dont have a slow gear so you may need to get a little run to load it on the trailer. I guess that may not be a big deal now that i think about it. I usaully back mine onto the trailer.

 

[LReiff]

Direct and two slower. What are the slower ratio options?

 

[cfunk]

Another thing to consider if you dont use a winch is you dont have a slow gear so you may need to get a little run to load it on the trailer. I guess that may not be a big deal now that i think about it. I usaully back mine onto the trailer.

Yeah, that is a good point loading could get interesting.

 

[cfunk]

Direct and two slower. What are the slower ratio options?

It is 1:1, 1.04:1 and 1.08:1

 

[kino_fab]

wouldn't really be much different that loading a 3.0 or super stock truck by driving it. Most have just one gear. Altho could be the reason most have a winch to load with.

 

[jedeka]

You will want a winch.

 

[Fireman450]

Hmm kinda figured those would go agenst the OEM tranny rule...

 

[JerrodGlover]

Hmm kinda figured those would go agenst the OEM tranny rule...

How is it different then an auto with aftermarket parts in it?

 

[Fireman450]

How is it different then an auto with aftermarket parts in it?

Got a point.. I stand corrected..

 

[cfunk]

Hmm kinda figured those would go agenst the OEM tranny rule...

As long as it is an OEM case aftermarket internals are permitted.

 

[j-rod]

It is 1:1, 1.04:1 and 1.08:1

Are there other ratios available? I had a discussion almost two months ago with a friend of mine, and the ratios were considerably slower than those posted above.

 

[smoke machine]

I was told 1:1. 1.55:1 and 1.88:1

 

[smoke machine]

sorry 1.83 to 1 was the slowest gear

 

[97crewcab]

It is 1:1, 1.04:1 and 1.08:1

When I emailed them a while back these were the ratios they quoted also.

I was told 1:1. 1.55:1 and 1.83:1

These ratios make for some pretty slow crawl ratios.

4.88 gears, 2.72 low, 1.83:1 trans gear = 24.29
4.88 gears, 2.72 low, 1:1 trans gear = 13.27 (5.13 gear 13.95)
4.88 gears, 2.72 low, 1.04:1 trans gear 13.8
4.88 gears, 2.72 low, 1.08:1 trans gear 14.33

To answer the original question, I don't think profab is going to put a poor product. Plus the nv4500 holds up pretty good when you put a good gear behind it.