Jaguar Diff identification.
Years ago I found a site that identified what model Jaguar my Differential came from. That site has disappeared. I've done a search on this site and found nothing. I've contacted many Jaguar parts companies and they want pictures. The only other identification method was the width of the rear end. Not much good when it's been narrowed. I messaged the Jaguar Owners Club and have no reply. I've even just punched in the cast numbers and stamped numbers off the diff an had no joy. Can anyone help me here ?? Surely there is a document somewhere that identifies the factory cast numbers and conforms the stamped ones. A mate needs to know what his diff is so he can replace seals.
Can anyone throw some light on this for me ? |
The document that helps identify pretty much every variant with part numbers is titled:
"Service Manual for SALISBURY HYPOID AXLES" Here is a link and you can print it off there: http://www.thecarnut.com/Manuals/Sal...xleService.pdf |
Rob,
Here's a link to my little web site that gives a pretty good lesson in Jag rear ID: Jag rear axle ID - FirstCoastCobraClub Go to the top of the thread and feel free to download the graphics if you're so inclined. Enjoy, Tom |
Thanks Tom Wells. I have grabbed a copy of that information. I have 3 Jag diffs at the moment. All different. This will help me order parts etc. Like most jag Diffs. When you buy them they are usually out of the car. So no chassis identification. This will be a great help. :) Bender
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Try contacting Jagbits
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I'm too looking are rejuvenation of what I think is an XJ6 diff under my car. I'll be using that pictorial guide to help identify what I might have installed.
But the question for me is, can you get new replacement bits for these diffs to do a proper overhaul, and I mean such as the crown and pinion gears, let alone any bearings and seals? I've asked the same question on the Jag forum but awaiting a response. Any ideas? |
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Ha ha
Not a clue as to what you just said Joyridin, as I've never played with a diff, but can half guess the message you are trying to convey. The plan was to have a fellow club member, experienced in these diffs do the work, so he might better understand the message. I do however definitely need to identify what model diff is under my car first. |
I used a new Crownwheel and pinion from Denis Welch Motorsport in mine with an Auburn Gear LSD centre.. You have to do a little grinding in the case for clearance but worked out ok.
https://www.bighealey.co.uk/jaguar/a...-new-jcrax150b https://dazecars.com/dazed/JaguarIRS4.html The boys at Spiteri Jaguar set it up for me. http://www.vicspiteri.com.au/ |
Excellent Kyleb
As the Daze Car article says, if you haven't tackled these before, farm out the work. That was always planned with Billy Big Block, but I think even he was unsure of the above details so that article is a Godsend many thanks. Knew the main bits wouldn't be cheap but getting a quiet diff is the aim so new bits it will be. Under the current circumstances it might be interesting to see if the parts can be sourced out of England / Europe. We will see! |
No worries Slowy.
Mine is as quiet as they get. If we weren’t grounded internationally I’d bring a set back from the U.K for you. Depends on when you want to do it. Cheers |
Am contemplating a winter upgrade as I have to also tackle movement upwards of a frame strengthening bracket that is now being hit by the revised rear end arrangement.
I had Marty do the XJ8/X308 rear end upgrade to also allow fitment of the Vintage rims I'd bought. This ended up shortening the whole rear end to get the mag rims /tyres under the mudguard lip. This consequently brought the swinging hub more under the chassis. I've jacked up the rear and have bump stops but moving this bracket upwards will help give more room. So not a quick exercise but times will with having to remove the rear end, so that's when the diff gets done too. What's the likelihood of a UK travel by mid - next year do you think? That would certainly get around some importing issues. |
Mid next year should be o.k as long as the Vaccine timeline stays on track and restrictions ease for international operations.
Let’s hope 2021 is somewhat more kind to us all than this year has been! |
Thanks mate
Yer madness I like a line I saw - 2020 brought to by Sesame Street along with the letters WTF! Cheers |
Thanks everyone.. I've gone through all the avenues and some back alleys and it seems that there is no official identification of diff housings. ( I even went to patent identification.) I rang several places here and in the usa and got some sort of information. not totally positive. The final answer was to send pics or remove the axle and identify if it had two or one bearings. Dave at Cathouse spares. gave me the best info but he also recommended pulling the thing apart to positively identify that actual housing. XJ6 Series 2 late model, was the verdict
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In 2008 JagDaim did my diff for me using their secret sauce combination recycled parts and new seals and whatnot. Has held up under severe provocation so I would suggest it's worthwhile giving them a call - they can probably give you a ball park over the phone When I did mine they gave me a fixed price sight unseen and I just took the diff unit in and came back some days later. https://www.jagdaim.com/ ta LoBelly http://www.clubcobra.com/photopost/d...AssemblyLQ.jpg |
Call Jag bits
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Slowy, You can get most of the bearings and seals from most reputable bearing shops. I use Pine rivers bearings in Brendale QLD for my bearings. The guys are old school and very knowledgeable. Just take down your old bearings and seals for cross referencing. The pinion spacer and side shims you can get from Jagdaim. I had the gears for a Hot rod diff lapped by Diff Lapping QLD. Lapping will reduce the noise if the gears were not correctly matched. Hope the info helps.
Bender |
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