Outer Limits 4x4 Board

mate of mine has a turbo'd 1hz in a hzj75, and he's going through gearboxes pretty cronically... is the 60 series 5 speed (h55f) stronger? any chance they'll bolt up?

AFAIK they are the same gearbox.

Ley269 wrote:AFAIK they are the same gearbox.

yes his is a h55f (just found out).... so any suggestions on stronger? i was told that later 1hz 75 series had the h150f. but his is a h55f anyway, so there goes that idea

Only turbo diesel 78/79s and FZJ75s have the H150f. All diesel 75 series have the H55f. After the change to the 78/79 series, the 1HZ gets the R151f from the Hilux line. Whether the R151f is stronger than the H55f is an arguable fact.

For a stronger gearbox, the H150f from a 78/79 is the go.

Dave

bad_religion_au wrote:.... so any suggestions on stronger?

If it's that much of a problem, go for an strengthened auto.

either that or tell him to stop doing 4 wheel dumps on the bitumin... ha ha

Ley269 wrote:

bad_religion_au wrote:.... so any suggestions on stronger?

If it's that much of a problem, go for an strengthened auto.

Best box for him to get into his truck is the h150 from behind a 1hz in the 80 series after 1993....i say that because synchros were all sorted after that date, but he will need to do some crossmember mods and tailshaft mods to fit it in....
Good side is his old bellhousing is sort after for the 1hdt in the 60 series mod.
Andrew

Joombi wrote:either that or tell him to stop doing 4 wheel dumps on the bitumin... ha ha

ummm they usually blow when coming on boost in 3rd... or in reverse.

bad_religion_au wrote:

Joombi wrote:either that or tell him to stop doing 4 wheel dumps on the bitumin... ha ha

ummm they usually blow when coming on boost in 3rd... or in reverse.

indeed he does, i want his engine...