Club 80-90 Forums

evening all,i just did this check to see if my front and rear diffs have the same ratio [ i suspect they are not!], i jacked one front wheel up and turned the diff input flange 2.625 revolutions for 1 revolution of the wheel. using the same method for rear wheel the ratio came out as 2.75 to 1 revolution [ of the rear wheel ].
comments/suggestions please ta.

Cant you read the codes of the gearbox's ?
I assume the propshaft is off.

yes the propshaft is off,the gear box has been re-built [ before i bought the van ] and i wondered if a different ratio diff was fitted [ so thats why i did the checks], i will post with the front diff and gear box codes tomorrow.

You would soon know if you had different ratios by fitting the prop

You would soon know if you had different ratios by fitting the prop

It should probably be mentioned (in case you dont know) that this is a really bad idea!

luckly? my vc is buggered,with the prop fitted the front diff whines[ with front tyres that are worn to 3mm it does'nt whine] so......???

weirder still the diff ratios are
4.57
4.86
5.43
5.83
6.16
so where the 2 and a bit comes from I don't know

the reason for the 2 and a bit is because one wheel is/was on the ground and need to be x2 for the correct reading?,the front diff code is : adm 44020 the speedo and mileometer read far too high as well,i will look for the gearbox code tomorrow [a bit cold n dark now!!].

well the gearbox code is ahf !! so they should be the same ratio [38;7 =54;43 ] i will check again with both wheels off the ground and the diff lock on.
nice and sunny here.

I'm an idiot!!!! they are the same, [the diffs] still i did find a very loose cv joint [some of the bolts were nearly out!].