440t4 3.73 upgrade?

[SS_EURO]

Is this an upgrade that makes a difference worth doing?I'm looking in to it but I don't know if it's all that.What are the parts and cost.can I order new insted of getting these peices from a donnor?

[SappySE107]

RE: 440t4 3.73 upgrade?

Ive heard it makes a better difference on the pushrods than the DOHC, but I have no experience with the DOHC in that config. Id say its worth doing if you don't mind a gas milage hit. The pushrods I am referring to hearing comments on are all gen 3 motors, not gen 2.

[SS_EURO]

first i have to get the car running with new cam. Then I'll see the mileage.How bad is the mileage decrease? do you think i could get a different vac mod to help the shifts a bit i heard b&m has one?

[SS_EURO]

Well i guess no ones done this yet. I need to find a dscr does any one have one

[SS_EURO]

my bad I need a dscr from a cww 3.4 tdc. Anyone?

[maybe2fast]

I have a Reatta and it has 2.97 FDR, it has the 440t4 and I would like to swap it over to the 3.73. What do I need

[maybe2fast]

anyone?

[bszopi]

Guess no one wants to help you. Let me find some of my old 440T4 manuals and see if I can find any information for you. I think really the only differences between the 440T4 and 4T60E, as far as changing the ratios, might be the diff ratio and the chain/sprocket setups. I'd think everything else should be basically the exact same.

I haven't messed with either tranny, and I haven't read through they 4T60E how-to in a long time, but if I can find some info, it might at least get you headed in the right direction.

[z284pwr]

Hey Brad, I don't suppose your 440T4 manual have any sections about performance tips do they? The manual we have just mentioned a basic rebuild.


Anyways, for the topic at hand, what other info are you looking for, I have the 440T4 manual here handy and can look up any info you need, perhaps trans numbers that would have your gear upgrade or what not?

[gpse3400]

If your set up is a 2.8/3.1 and it is mated in a W car then you'll need the drive chain sprokets from a 3.4 tdc 4t60e transmission. that will give you the 3.73 ratio.

[napatiger]

I was about to scrap my 60-E b/c I cracked the case.

I pulled the pan for me, but if you need gears, let me know quick.

I know nothing bout the tranny but if you explain how... I can prolly pull it.