Changing 7" diff ratio


CW & P 4.10 or 4.44
no installation
1.071,00 € incl. 19 % VAT
900,00 € excl. VAT
Complete installation incl. new bearings and seals into the removed diff.
1.071,00 € incl. 19 % VAT
900,00 € excl. VAT
Remove and install differential in the Caterham S3/SV
595,00 € incl. 19 % VAT
500,00 € excl. VAT
Remove and install differential in the Caterham CSR
773,50 € incl. 19 % VAT
650,00 € excl. VAT

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For the Ford Sierra and Caterham 7 "Differential, we offer changes in ratio.

If it is necessary to change the ratio to 3.38, 3.62, or 3.92, it may make sense to replace the differential. We always have differentials in stock with these ratios and are happy to accept your differential, provided that it is in good condition.

Changing the ratio to 3.14 is often not feasible, as this translation is very rarely available, whereas the availability of the 4.10 and 4.44 CW&P is currently no problem. A conversion to 4.10 and 4.44 is only possible in conjunction with a dispenser differential and complete rebuilds of the differential.

An ISF surface treatment is available for 4.10 and 4.44.

The ISF Process is a unique isotropic superfinishing process  that generates a non directional low Ra surface. Among its many benefits, this isotropic surface process reduces friction and wear on the surface and increases part durability.