Thread: 3 speed automatic

They are gutless as all hell especially if you run larger tyres. The TF727 is near bulletproof and ideal for big CI engine upgrades but struggles with a little 3.5. $1800 sounds a lot for a rebuild of one unless it included remove/refit.

Motor has been replaced with 4.6L but when they had work done on the automatic, they kept the 3-speed. In hindsight, they agree that $1,800 would have been better spent on changing to 4-speed but that is not how it panned out. I am wondering if the combination of 4.6L & 3-speed auto is a good one or not.

Yes it is better, but I would either fit a 4 spd auto or be ready for some huge fuel bills...The TF727 in these doesen't have converter lock up either, so it will be revving too hard on the highway, even with the 1:1 trtansfer ratio.

If you buy it, look around for a ZF 4HP22 from a 92 to 98 disco or pre 1990 rangie, with a LT230 transfer case. These have a lower high range ratio, and lock up torque converter and a 25% overdrive.

Is the RAngie cheap enough?

JC

Originally Posted by justinc

If you buy it, look around for a ZF 4HP22 from a 92 to 98 disco or pre 1990 rangie, with a LT230 transfer case. These have a lower high range ratio, and lock up torque converter and a 25% overdrive.

Is the RAngie cheap enough?

JC

PM me if you wan't one

I would think you could prob pick up an 86 (or 88?) that had the 4sp fitted... far less hassle than converting.. I was going to convert my 80 2door... bought a complete 90 for the running gear (gas and 4sp auto) but ended up putting the 90 on the road (was 2 nice to strip- but no having to change engines in it -see my recent threads on bloody hard to reach bolts! lol)

But then it wouldn't have a 4.6 now would it

Price is around $5K. 4.6L said to have only done about 20,000kms since new about 2 years ago. I'm thinking that having the near new 4.6L with the 3-speed would be okay with potential cost of changing to 4-speed probably better than looking at 3.9L with 4-speed looking to convert to 4.6L????

The TF727 is a great box, very smooth changes and tough as. The 4.6 should make it get along ok.