4x4 f20

[GTE SIXPOT]

anyone know if i need a f28 convertion kit for my 4x4 f20?,as the cv end moves about alot and is leakin box oil.cheers

[astramad]

Re: 4x4 f20

i dont know for sure you need an F28 plate, tbh i would think you need the drive flange off an F20, how many bolt holes are around the diff housing?

[GTE SIXPOT]

Re: 4x4 f20

i no the kits cum wif a cv spacer which i think i need but just wana b sure before i buy.bin told i can use parts from my spare f16.

[DarrenH]

Re: 4x4 f20

an F28 conversion "kit" is just a bearing carrier and an oil seal, exactly the same as whats attached to the drivers side of F16 and F20. it doesnt support the cv at all.

F28 conversion kit



F16/F20 standard version

[DarrenH]

Re: 4x4 f20

p.s the bolt spacing is different on F28 2wd plate, it wont fit an F20

[astramad]

Re: 4x4 f20

when i converted my F28 i used the diff seal housing off my f16 then had it machined so it would fit then i taped out the holes and bolted it up, you may be able to just bolt up the flange off the F16 and that will be enough

[astramad]

Re: 4x4 f20

p.s the bolt spacing is different on F28 2wd plate, it wont fit an F20

darren where do you get all the pics from? pics always help, ive got loads of non useful ones lol

[DarrenH]

Re: 4x4 f20

well i took those pics, its my mk3 turbo and my gte. but got thousands of engine related pics i've saved since about 1999 !

[astramad]

Re: 4x4 f20

well i took those pics, its my mk3 turbo and my gte. but got thousands of engine related pics i've saved since about 1999 !

christ and i thought i was in to cars.... its always handy to have pics it makes things easier when telling someone how todo something

[GTE SIXPOT]

Re: 4x4 f20

Picture And Video of my cv

Video on YouTube of Astra GTE CV 2wd to 4wd conversion Problem

[GTE SIXPOT]

Re: 4x4 f20

wot will i need 2 swap from f16 2 f20 to sort this problem out?or will f28 kit sort it out?cheers

[DarrenH]

Re: 4x4 f20

*******

an F28 conversion "kit" is just a bearing carrier and an oil seal, it doesnt support the cv at all.

[DarrenH]

Re: 4x4 f20

as i said in the PM, we cant guess what is wrong from pictures, and then tell you how to fix it based on guesses. the actuall diff could be flopping about inside the box for all we know, or it might just be the cv joint at issue.

if you have access to mig, contact user http://www.migweb.co.uk/forums/member.php?u=953 who i know has done this conversion, or could possibly hav more eductaed guess at what is wrong or what is lacking

[GTE SIXPOT]

Re: 4x4 f20

very far left is oilseals f16 top,f20 on bottom.holes dont line up so unable 2 use f16 oilseal on f20.second pic from left is f20 hole that transfer box fixes too.other pics r f16 parts.will it b a straight swap puttin f20 internals into f16 casing?i also want 2 use the f20 final drive for accelertion or wud the f16 be better?cheers

[DarrenH]

Re: 4x4 f20

thats why i think the cv joint is wobbling about, because the cv usually slides into the diff right behind the oil seal. but with the 4x4 box it has to go through 2 inches of the transfer box drive spline without any support.

using equal length drive shaft would cure it, as its supported by another bearing bolted to the engine block.

2 wheel drive F16 and F20 internals are almost identicle, the difference is the diff is bigger and stronger on the F20, and the end case bearing between the final drive and diff is bigger and might not fit the F16 housing.

too many options.