gearbox&diff

Post by **Joe** » 20 Apr 2010 05:13 pm

I have just blow my diff up and need a new one because i have a drag race in 12 days!!! I got offerd a 5 speed gearbox and diff cheap, but the only problem is my car had a 4 speed gearbox in and i was wondering if the 5 speed would fit in ? Cheers Joe

Post by **SteveP** » 20 Apr 2010 07:36 pm

It'll go right in yes, you'll want to swap the whole transaxle which is sounds like you were going to do

Post by **Joe** » 20 Apr 2010 08:02 pm

Cheers bud, i have just finished rebuilding my gtt engine in one night

Post by **SteveP** » 20 Apr 2010 08:10 pm

Good effort!! The 4 speed diff has a longer casing, so the units are the same length... therefore pretty sure the prop is will be fine on the 5 speed box too. This is what I found out when I wanted to do a 5 speed conversion on my 343

Post by **Joe** » 20 Apr 2010 09:05 pm

Yer, i measured the hole centers and they are the same but the is like a big chunk off bar were the prop goes onto it looks like ots there to act as a balance is this normal?

Post by **340GLT** » 20 Apr 2010 10:16 pm

If the box is out of a 1.7 then it has a harmonic balencer on the front of the gearbox.
Adam

Post by **Joe** » 21 Apr 2010 05:33 pm

Yer that must off been it.

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