Diff ratio for 1kz on r151f gear box

[Camfitz30]

I have just done a conversion on my ln130, from a 2LTE to a 1kz, Manuel pump etc on a r151f gearbox. I have a set of 4.11 diffs and a set of diffs out of the 2LTE r151f which I don't know what ratio they are...

Which diffs would be better to get the revs down on the open road? With 31, 32 inch tyres...

Cheers

[Crash bandicoot]

4.1 that youve got.....for low revs. 4.5 Or 4.8 for crrawling

[Jerry]

do a search on google for a diff ratio calculator, there are a couple of good ones out there

[kbushnz]

The factory diff ratio's for the 1KZTE powered KZJ78 etc etc was 4.3
2LTE had 4.1

[tweake]

one thing to watch with a 4.1 diff is first gear starts might be a little tough at times. i can't remember what the kn130's came out with. you might want to look at 4.3's. it will rev a bit more in highway use but certainly easier going in the slow stuff and hill starts.
i run 4.56 with 31" and r151f, and it rev's its nuts off. but thats typical for an L series engine. 1kz are generally lower rev'ed.

[Jerry]

The factory diff ratio's for the 1KZTE powered KZJ78 etc etc was 4.3
2LTE had 4.1

4.8's for 2lte ones?

[kbushnz]

The factory diff ratio's for the 1KZTE powered KZJ78 etc etc was 4.3
2LTE had 4.1

4.8's for 2lte ones?

True thats right doh...... 4.1 was for the hilux...
Thanks Jerry....

[Smurf]

The factory diff ratio's for the 1KZTE powered KZJ78 etc etc was 4.3
2LTE had 4.1

4.8's for 2lte ones?

True thats right doh...... 4.1 was for the hilux...
Thanks Jerry....

V6 VZN Surf is also 4.88

[UBZ]

95 KZN-130 Manual Surf 1KZ-TE with R151F Gearbox/Chain transfer had 4.11 Diffs from factory .
Went real good on 33s with 4.3 diffs though .