F4r gearbox swap?

[Adey aka Ewok]

Anyone know if you can fit the r5 box to the 172 engine while keeping the 215mm flywheel?

[allanr5gtt]

yes you can very tight. a sight bit of grining and playing with the dowel for the starter motor.

[SCHWARTZ]

I have the 215mm fly b18ft mated to a 5 gearbox, There is a dowel that you must remove from the box its below the starter.

[Adey aka Ewok]

I mated a valver to a 5 box before and remember I had to move a dowel bit have no idea what size fly wheels that was. Cheers for the info peeps

[Adey aka Ewok]

Been a while since I've played pikey, whatsthe stronger box? 5gtt or 172? Tho I've killed lots of 172 boxes so that probably answers that one

[Ashy]

phase 1 172 box is the strongest.

[5teve L]

What exactly goes wrong with your boxes, are you smashing the gears or popping the circlip so you pop the shaft & loose drive ?

[Adey aka Ewok]

I smashed the gears and cracked the casing on my last ph1 172 box

[5teve L]

I smashed the gears and cracked the casing on my last ph1 172 box
Not sure there is alot you can do about that really except be a little more gentle with it :crap:
I'm dreading putting 300hp through my valver box :scared: I have a GTT box as a spare, think I will either have to get one of those rings that bolt in or a bolt in diff or I can see shafts popping out all the time :crap:

Are any of the volvo boxes any good ?

[Matt Cole]

JB casing is a bit beefier but the 172 box has better gears.

In other words, both as usefull as each other!:crap:

[SCHWARTZ]

the m60 volvo box is suposed to be little stronger that gtt (and porb not as abused) also has a longer 5th aparently;)