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Good evening fine folk! As some of you know, I recently acquired a lovely Pinto powered SEi, and have been giving it a thorough once over. When giving it a quick test drive, I noticed a slight knocking coming from the propshaft / rear of the car, coupled with a slight gear stick shake intermittently. I thought this may be a lose gearbox mount or diff mounting bolt, however on further inspection there seems to be some inherent "up and down" play in the offside rear driveshaft. I am looking to replace the full driveshaft / CV joint, but would like to understand exactly which type of shafts they are and where I can source a new unit? Many thanks in advance - Pictures below. /B

Hi Folks, I am looking to upgrade my differential to a LSD. Here is the housing... and here is the tag. From what I have gathered so far, this differential is a 3.91:1 open diff from a ford scorpio (I could be wrong!). Could I please have some advise on the best upgrade method for this as I still feel that I have a lot to learn on this subject and I'm sure many of you have a lot more experience than I do! The reasons for wanting to upgrade to LSD are: 1) I have a ST170 Zetec engine sat in the garage which will be a nice swap for the 1.8 silvertop that is in the car at the moment. I'm thinking throttle-bodies... 2) I would quite like to do some track days in the future. Cheers, Simon

I have a Quaife ATB diff in a 7.5" sierra diff which apears to be leaking from the seal at the prop-shaft end, question is, do it my self? trusted local garage? or specialist? What do you think? Cheers Dave

Got a 3.62 crown wheel and pinion for a 7" Sierra diff. Perfect condition, was removed a number of years ago when I swapped to a 4.1. Not sure how much they're worth, looking for £75 delivered.

I'm rebuilding my electric sprint car after smashing it up at Curborough. During the rebuild process I may fit an LSD if it's practical. The car has a Freelander differential fitted as standard which I can't change. The electric motor is limited to 5000 rpm and is coupled directly to the diff so it needs the 3.2 to 1 ratio (as well as 17 inch rear wheels). Could anybody recommended an LSD type or manufacturer for this diff? Thanks.

Through the years Westfield's have used a number of different types and designs for their rear axle and suspension. whilst there are some variations with different applications and years, for Car engined vehicles these can be most typically be categorised into 4 different types. Escort Live axle The Live axle was used in the Pre-Lit, Narrow Body (SE) and Wide Body (SEW) cars. It uses a modified Ford Escort Mk1 or Mk2 (English) axle. Independent Axle (Westfield/Escort Diff) This was first used in the Narrow Body (SEI) and the early Wide Body (SEIW) cars. The differential unit is from a Ford English Axle and is housed within a cast aluminium housing off Westfield's own design. The casting is embossed with the Westfield logo on the rear. Independent Axle (Sierra Diff) Predominantly found in Wide Body (SEIW) cars and Sierra SDV's. As well as the Ford Sierra's differential The Sierra SDV also uses the driveshafts and rear hubs from the donor with Westfield uprights designed specifically for them. The Standard Modular build kits use Westfield's own suspension uprights and driveshafts. Sierra SDV rear upright shown below Independent Axle (Mazda SDV) The Mazda diff is only found on the Mazda SDV which was released around 2006, the differential unit, driveshafts and rear uprights are taken from the Mk1 to M2.5 MX5. Other Axles Sprite/Midget and British Leyland Marina axles have also both featured on early Pre-Lit cars together with the Escort Live axle. Land Rover Freelander differentials can be found used in the current Bike Engined (Mega) chassis. The Sport Turbo uses the differential unit from the Mk3 Mazda MX5.

Due to a change of plans I'm putting this up for sale It's a rare 3.6 ratio type-2 Torsen Torque biasing diff. Please ignore the fact it has 3.9 written on the carrier, i've counted to teeth on the crown wheel and pinion and it's definitely 3.6 Most MX5's came with either a 4.3 or 4.1 ratio diff, the 3.6 was only found on the 6-speed cars. Comparing with a 4.3 ratio this will give you an engine speed of approx 3100rpm in 5th gear at 70mph rather than 3600rpm. First gear will also be longer increasing from approx 30mph to 37mph @ 6200rpm. 60mph in second gear would now be possible. Further reading here http://www.miata.net/garage/diffguide/ http://www.torsen.com/products/products.htm http://www.flyinmiata.com/tech/gearing.php Visually the diff is in very good condition, I have removed the carrier to inspect the gear surfaces and there is no evidence of chips or damage. The diff has been reassembled, but is currently not filled with oil. For those that have the smaller diff fitted to the 1.6 cars (identifiable by having no torque damper on the diff nose and bolt on driveshafts) I also have spare a pair of push in driveshafts and a shortened prop of the correct length for a Westfield which I would sell with the diff. I'm offering this for sale at £300 for the diff only or £400 with the shafts and prop which is a lot less than I paid for it. I'm afraid it's too heavy for me to post, but I'm happy to wrap it for you to send your own courier or else collection in person from Colchester CO6 Thanks Mark wsccessex@btinternet.com